Fatal Exception: java.lang.NullPointerException

Fatal Exception: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String company.tap.gosellapi.internal.api.models.PaymentOption.getThreeDS()' on a null object reference
at company.tap.gosellapi.internal.data_managers.PaymentProcessManager.callChargeOrAuthorizeOrSaveCardAPI(PaymentProcessManager.java:662)
at company.tap.gosellapi.internal.data_managers.PaymentProcessManager.access$100(PaymentProcessManager.java:65)
at company.tap.gosellapi.internal.data_managers.PaymentProcessManager$1.onSuccess(PaymentProcessManager.java:487)
at company.tap.gosellapi.internal.data_managers.PaymentProcessManager$1.onSuccess(PaymentProcessManager.java:469)
at company.tap.gosellapi.internal.api.callbacks.BaseCallback.onResponse(BaseCallback.java:36)
at retrofit2.DefaultCallAdapterFactory$ExecutorCallbackCall$1$1.run(DefaultCallAdapterFactory.java:83)
at android.os.Handler.handleCallback(Handler.java:900)
at android.os.Handler.dispatchMessage(Handler.java:103)
at android.os.Looper.loop(Looper.java:219)
at android.app.ActivityThread.main(ActivityThread.java:8387)
at java.lang.reflect.Method.invoke(Method.java)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:513)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1055)

The sdk is using the device language instead of the sdk language.

If you have the phone in Arabic and you setup the sdk to use English, the payment view is in Arabic instead of English.

ThemeObject.getInstance().setSdkLanguage("en")
GoSellSDK.setLocale("en")
sdkSession.start(activity)

The same issue happened if you have the phone in English and you try to use the sdk in Arabic

Can you include the version changes in a changelog file or in the release section please?
So, when you release a new version we can know easier what changed.

Thanks!

I'm facing an issue. I have integrated the latest version of SDK in an application. But when I try to run it by calling configureSDKSession method. I always end up in "sdkError" callback with an error message of:
{"errors":[{"code":"2104","description":"Invalid API Key"}]}

I've tried using the test keys from my TAP Merchant panel.
I've also tried the test keys mentioned on the TAP Documentation.

This is the stacktrace , in the version [2.2.7] it didn't happen

Fatal Exception: java.lang.NullPointerException: throw with null exception
       at company.tap.gosellapi.internal.api.responses.SDKSettings$Data.getPermissions(SDKSettings.java)
       at company.tap.gosellapi.internal.data_managers.payment_options.PaymentOptionsDataManager$ViewModelsHandler.generateCardPaymentModel + 993(PaymentOptionsDataManager.java:993)
       at company.tap.gosellapi.internal.data_managers.payment_options.PaymentOptionsDataManager$ViewModelsHandler.generateViewModels + 802(PaymentOptionsDataManager.java:802)
       at company.tap.gosellapi.internal.data_managers.payment_options.PaymentOptionsDataManager$ViewModelsHandler.access$100 + 732(PaymentOptionsDataManager.java:732)
       at company.tap.gosellapi.internal.data_managers.payment_options.PaymentOptionsDataManager.(PaymentOptionsDataManager.java:5)
       at company.tap.gosellapi.internal.data_managers.PaymentDataManager.createPaymentOptionsDataManager + 305(PaymentDataManager.java:305)
       at company.tap.gosellapi.internal.api.facade.GoSellAPI$1.onSuccess + 232(GoSellAPI.java:232)
       at company.tap.gosellapi.internal.api.facade.GoSellAPI$1.onSuccess + 228(GoSellAPI.java:228)
       at company.tap.gosellapi.internal.api.callbacks.BaseCallback.onResponse + 36(BaseCallback.java:36)
       at retrofit2.ExecutorCallAdapterFactory$ExecutorCallbackCall$1$1.run + 71(ExecutorCallAdapterFactory.java:71)
       at android.os.Handler.handleCallback + 754(Handler.java:754)
       at android.os.Handler.dispatchMessage + 95(Handler.java:95)
       at android.os.Looper.loop + 165(Looper.java:165)
       at android.app.ActivityThread.main + 6375(ActivityThread.java:6375)
       at java.lang.reflect.Method.invoke(Method.java)
       at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run + 912(ZygoteInit.java:912)
       at com.android.internal.os.ZygoteInit.main + 802(ZygoteInit.java:802)

this exception is appearing only is the Release version

E/AndroidRuntime: FATAL EXCEPTION: GLThread 6950
Process: itssportsco.android.app, PID: 4945
java.lang.ArrayIndexOutOfBoundsException: length=0; index=0
at gotap.com.tapglkitandroid.gl.Views.TapRender.onSurfaceCreated(:50)
at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1539)
at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1270)

I faced with an NPE when I clicked on the cuerrcny view, check the video link below

https://drive.google.com/file/d/1TTuRBnLylL1Iw5H_AklE_uMZyYPMnqUr/view?usp=sharing

dependency version : 2.15.3

Error

    --------- beginning of crash
E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.ibtikarat.goltlak, PID: 32155
    java.lang.NullPointerException: Attempt to invoke interface method 'android.view.View android.view.MenuItem.getActionView()' on a null object reference
        at company.tap.gosellapi.internal.activities.CurrenciesActivity.onCreateOptionsMenu(CurrenciesActivity.java:116)
        at android.app.Activity.onCreatePanelMenu(Activity.java:4140)
        at androidx.fragment.app.FragmentActivity.onCreatePanelMenu(FragmentActivity.java:263)
        at androidx.appcompat.view.WindowCallbackWrapper.onCreatePanelMenu(WindowCallbackWrapper.java:94)
        at androidx.appcompat.app.AppCompatDelegateImpl$AppCompatWindowCallback.onCreatePanelMenu(AppCompatDelegateImpl.java:3106)
        at androidx.appcompat.app.AppCompatDelegateImpl.preparePanel(AppCompatDelegateImpl.java:1910)
        at androidx.appcompat.app.AppCompatDelegateImpl.doInvalidatePanelMenu(AppCompatDelegateImpl.java:2191)
        at androidx.appcompat.app.AppCompatDelegateImpl$2.run(AppCompatDelegateImpl.java:276)
        at android.os.Handler.handleCallback(Handler.java:883)
        at android.os.Handler.dispatchMessage(Handler.java:100)
        at android.os.Looper.loop(Looper.java:224)
        at android.app.ActivityThread.main(ActivityThread.java:7562)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:539)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:950)

My Code

private val payload: SubscriptionPayload // the data are valid

fun initPayment(onSuccess: () -> Unit) {

        GoSellSDK.init(context.applicationContext, API_KEY, BuildConfig.APPLICATION_ID)
        GoSellSDK.setLocale("ar")
        ThemeObject.getInstance().setAppearanceMode(AppearanceMode.FULLSCREEN_MODE).sdkLanguage = "ar"
        sdkSession.instantiatePaymentDataSource()
        sdkSession.setTransactionCurrency(TapCurrency("SAR"))
        sdkSession.transactionMode = TransactionMode.PURCHASE
        sdkSession.setCustomer(getCustomer())
        sdkSession.setAmount(BigDecimal(payload.cost))
        val list: ArrayList<PaymentItem> = arrayListOf()
        sdkSession.setPaymentItems(list)
        sdkSession.isUserAllowedToSaveCard(false)
        sdkSession.isRequires3DSecure(true)
        sdkSession.setPostURL(payload.post_url)

}

Error : onFailure createCharge, errorCode: 500, errorBody: {"errors":[{"fieldname":"create a charge","message":"Sorry, we couldn't achieve your request at the moment. Please try again later, or contact our customer support."}]}, throwable: null

Code :

        HashMap<String, String> chargeMetadata = new HashMap<>();
        chargeMetadata.put("Order Number", "ORD-1003");
        GoSellAPI.getInstance(AUTH_TOKEN).createCharge(
                new CreateChargeRequest
                        .Builder(10, "KWD", new Redirect("http://return.com/returnurl", "http://return.com/posturl"))
                        .source(new Source("card", "12", "20", "5555555555554444", "123")
                        .build(),
                new APIRequestCallback<Charge>() {
                    @Override
                    public void onSuccess(int responseCode, Charge serializedResponse) {
                        Log.d(TAG, "onSuccess createCharge: serializedResponse:" + serializedResponse);
                        charge = serializedResponse;
                       
                    }

                    @Override
                    public void onFailure(GoSellError errorDetails) {
                        Log.d(TAG, "onFailure createCharge, errorCode: " + errorDetails.getErrorCode() + ", errorBody: " + errorDetails.getErrorBody() + ", throwable: " + errorDetails.getThrowable());
                    }
                }
        );
    }```

i am getting this error while adding test/live key in it.

errorBody{"errors":[{"code":"2104","description":"Invalid API Key"}]}

Hello,

I got a very strange issue in the payment SDK when I go to the SMS application and came back to the OTP page to enter the OPT, the page refreshed every time.

Can anyone face the same issue? I am having this issue in Redmi Note 5 Android device.

I have this error, when I clicked to the payButton. I use 4.9.0 version of Glide but The library use 4.7.1. I get this error when I use same version to library. "bumptech/glide#3185" but solutions does not work for me. Can you update to Glide for library?

java.lang.NoSuchMethodError: No virtual method apply(Lcom/bumptech/glide/request/RequestOptions;)Lcom/bumptech/glide/RequestBuilder; in class Lcom/bumptech/glide/RequestBuilder; or its super classes (declaration of 'com.bumptech.glide.RequestBuilder' appears in /data/app/packagename-RUTD1SzmsMC0a3bnMHqDOQ==/split_lib_dependencies_apk.apk)
at company.tap.gosellapi.internal.activities.GoSellPaymentActivity.setupHeader(GoSellPaymentActivity.java:230)
at company.tap.gosellapi.internal.activities.GoSellPaymentActivity.initViews(GoSellPaymentActivity.java:158)
at company.tap.gosellapi.internal.activities.GoSellPaymentActivity.onCreate(GoSellPaymentActivity.java:142)
at android.app.Activity.performCreate(Activity.java:7258)
at android.app.Activity.performCreate(Activity.java:7249)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1221)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2927)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3059)
at android.app.ActivityThread.-wrap11(Unknown Source:0)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1724)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:7000)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:441)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1408)

Hi,

I noticed a good progress in the development_2.0 branch. Is there an estimate for a new release with this major version?

Thanks!

I want to do payment with already saved cards but whenever I'm trying to select a saved card but it is not able to select a card and do payment.

Please help me and reply me ASAP
Thank you.

I have integrated GoSellSDK in my application. Everything else is working fine but when I choose KNET as payment method nothing shows after the loading finishes.

My keys are correct and KNET is activated on them. KNET is working fine for the test key but doesn't work on my live key.

"Error parsing a meta element's content: ';' is not a valid key-value pair separator. Please use ',' instead."

I am getting issue with 'com.github.Tap-Payments:goSellSDK-Android:2.1.10' library import.

Error :
onFailure createCharge, errorCode: 403, errorBody: {"errors":[{"fieldname":"charges.source","message":"Invalid source"}]}, throwable: null

Code :

Source source = new Source("card", "month", "year", "cardNumber", "cvv");
GoSellAPI.getInstance(AUTH_TOKEN).createCharge(
                new CreateChargeRequest
                        .Builder(10, "KWD", new Redirect("http://myreturnurl.com","http://myposturl.com"))
                        .source(source)
                        .statement_descriptor("charge")
                        .description(paymentDescription)
                        .metadata(chargeMetadata)
                        .receipt_sms(String.valueOf(user.getMobileNo()))
                        .receipt_email(user.getEmail())
                        .build(),
                new APIRequestCallback<Charge>() {
                    @Override
                    public void onSuccess(int responseCode, Charge serializedResponse) {
                        Debug.e(TAG, "onSuccess createCharge: serializedResponse:" + serializedResponse);
                     }

                    @Override
                    public void onFailure(GoSellError errorDetails) {
                        Debug.e(TAG, "onFailure createCharge, errorCode: " + errorDetails.getErrorCode() + ", errorBody: " + errorDetails.getErrorBody() + ", throwable: " + errorDetails.getThrowable());
                    }
                }
        );

I am facing issue when creating token in TAP payment gateway as below:

403, errorBody: {"status":"fail","type":"permission_denied","message":"It is likely that you need to grant has_pci_dss permission"}, throwable: null

Please reply

java.lang.NullPointerException: Attempt to invoke virtual method 'void androidx.appcompat.widget.SearchView.setVisibility(int)' on a null object reference
at company.tap.gosellapi.internal.activities.CurrenciesActivity.onCreateOptionsMenu(CurrenciesActivity.java:100)
at android.app.Activity.onCreatePanelMenu(Activity.java:4074)
at androidx.fragment.app.FragmentActivity.onCreatePanelMenu(FragmentActivity.java:378)
at androidx.appcompat.view.WindowCallbackWrapper.onCreatePanelMenu(WindowCallbackWrapper.java:94)
at androidx.appcompat.app.AppCompatDelegateImpl$AppCompatWindowCallback.onCreatePanelMenu(AppCompatDelegateImpl.java:2549)
at androidx.appcompat.app.AppCompatDelegateImpl.preparePanel(AppCompatDelegateImpl.java:1589)
at androidx.appcompat.app.AppCompatDelegateImpl.doInvalidatePanelMenu(AppCompatDelegateImpl.java:1869)
at androidx.appcompat.app.AppCompatDelegateImpl$2.run(AppCompatDelegateImpl.java:230)
at android.os.Handler.handleCallback(Handler.java:883)
at android.os.Handler.dispatchMessage(Handler.java:100)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7356)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)

I am not able to see the BENEFIT pay payment button in the SDK

FAILURE: Build failed with an exception.
I just check out the code from https://github.com/Tap-Payments/goSellSDK-AndroidX.git

Could not GET 'https://jitpack.io/com/github/Tap-Payments/TapColorsKit-Android/1.0/TapColorsKit-Android-1.0.pom'

Log:

> Task :library:generateDebugRFile FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':library:generateDebugRFile'.
> Could not resolve all files for configuration ':library:debugRuntimeClasspath'.
   > Could not resolve com.github.Tap-Payments:TapCardValidator-Android:2.1.0.1.
     Required by:
         project :library
      > Could not resolve com.github.Tap-Payments:TapCardValidator-Android:2.1.0.1.
         > Could not get resource 'https://jitpack.io/com/github/Tap-Payments/TapCardValidator-Android/2.1.0.1/TapCardValidator-Android-2.1.0.1.pom'.
            > Could not GET 'https://jitpack.io/com/github/Tap-Payments/TapCardValidator-Android/2.1.0.1/TapCardValidator-Android-2.1.0.1.pom'. Received status code 401 from server: Unauthorized

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

Steps to reproduce it:

• Clone the repo (git clone [email protected]:Tap-Payments/goSellSDK-Android.git).
• Checkout in the 2.4.6 tag (git checkout 2.4.6 )
• Compile it ./gradlew assembleDebug

Additional comments:

• I tested the goSellSDK-AndroidX version and It has the same issue Tap-Payments/goSellSDK-AndroidX#4.
• Your ci server is facing the same issue:
  https://travis-ci.org/Tap-Payments/goSellSDK-Android/builds/606371366

{"errors":[{"code":"2104","description":"Invalid API Key"}]}

The app sometime is crashing in this line

Fatal Exception: java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.View android.view.View.findViewById(int)' on a null object reference
       at company.tap.gosellapi.internal.data_managers.LoadingScreenManager$2.onAnimationEnd + 144(LoadingScreenManager.java:144)
       at android.view.ViewPropertyAnimator$AnimatorEventListener.onAnimationEnd + 1122(ViewPropertyAnimator.java:1122)
       at android.animation.Animator$AnimatorListener.onAnimationEnd + 552(Animator.java:552)
       at android.animation.ValueAnimator.endAnimation + 1232(ValueAnimator.java:1232)
       at android.animation.ValueAnimator.doAnimationFrame + 1474(ValueAnimator.java:1474)
       at android.animation.AnimationHandler.doAnimationFrame + 146(AnimationHandler.java:146)
       at android.animation.AnimationHandler.access$100 + 37(AnimationHandler.java:37)
       at android.animation.AnimationHandler$1.doFrame + 54(AnimationHandler.java:54)
       at android.view.Choreographer$CallbackRecord.run + 947(Choreographer.java:947)
       at android.view.Choreographer.doCallbacks + 761(Choreographer.java:761)
       at android.view.Choreographer.doFrame + 693(Choreographer.java:693)
       at android.view.Choreographer$FrameDisplayEventReceiver.run + 935(Choreographer.java:935)
       at android.os.Handler.handleCallback + 873(Handler.java:873)
       at android.os.Handler.dispatchMessage + 99(Handler.java:99)
       at android.os.Looper.loop + 214(Looper.java:214)
       at android.app.ActivityThread.main + 7045(ActivityThread.java:7045)
       at java.lang.reflect.Method.invoke(Method.java)
       at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run + 493(RuntimeInit.java:493)
       at com.android.internal.os.ZygoteInit.main + 965(ZygoteInit.java:965)

I'm trying to add this SDK in a project and I'm unable to Resolve the following classes when creating a charge:

• CreateChargeRequest.Customer
• CreateChargeRequest.Receipt
• CreateChargeRequest.Source

I tried adding a Customer object retrieved from GoSellAPI.getInstance(AUTH_TOKEN).createCustomer but it doesn't work either.

Any help would be appreciated. Thanks.

While running sample SDK getting this error
fatal: not a git repository (or any of the parent directories): .git

The sdk doesn't work if Proguard is enabled, you can take a look at xmartlabs@0325ee7

Hello Team,

We have implemented the Tap payment in one of the application, some of the users complain that they are not getting the saved cards when they are going to the payment for next time.

Can you please let me know what's the issue?

All activities from the sdk should use singleTask or at least singleTop to avoid opens the payment view multiple times.

As the title says it all, the application crashes when I select TransactionMode.PURCHASE in the function of SDKSession.
Following is the log of crash:

Sometime the app log important information in the logger system, for example:

Log.d("#paymentOptionsRequest" , paymentOptionsRequest.getPaymentOptionRequestInfo());

System.out.println("getPaymentOptions>>> error: "+errorDetails.getErrorMessage());
System.out.println("getPaymentOptions>>> error: "+errorDetails.getErrorBody());

From my point of view this is a big security issue, and it's a blocker to migrate to this version.

Sdk doesn't support AndroidX, my project is in AndroidX, i have to manually change each class package to androidx.

i use go_sell_sdk_flutter: ^2.2.2
i got error
https://jitpack.io/com/github/Tap-Payments/goSellSDK-AndroidX/3.16.1/goSellSDK-AndroidX-3.16.1.aar not found

Hello Tap Payment Team,

I want to change the text color of the Cancel button of GoSellActivity to white color? Can you please let me know how to change that color as I am not able to find the method in the ThemeObjecet.

 <TextView
                android:id="@+id/cancel_payment_icon"
                android:textSize="@dimen/font_size_14sp"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/cancel"
                android:layout_marginBottom="@dimen/margin_basic_16dp"
                android:layout_marginTop="@dimen/margin_basic_16dp"/>

When you are creating a customer (using CustomerBuilder), you can set the phone number using the PhoneNumber class.
The PhoneNumber package class is company.tap.gosellapi.internal.api.models instead of company.tap.gosellapi.open.models and I think it's wrong because it's not an internal class.

debug version works fine
but the release version crashes when enabling proguard.

im using the latest goSellSdk version 2.4.2

this is what im getting in logcat when i launch the tap activity

2019-10-10 17:08:26.881 2617-2617/itssportsco.android.app E/AndroidRuntime: FATAL EXCEPTION: main
Process: itssportsco.android.app, PID: 2617
java.lang.AssertionError: java.lang.NoSuchFieldException: PURCHASE
at com.google.gson.internal.bind.TypeAdapters$EnumTypeAdapter.(:792)
at com.google.gson.internal.bind.TypeAdapters$30.create(:818)
at com.google.gson.Gson.getAdapter(:458)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.createBoundField(:117)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(:166)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.create(:102)
at com.google.gson.Gson.getAdapter(:458)
at retrofit2.converter.gson.GsonConverterFactory.a(:71)
at retrofit2.Retrofit.a(:280)
at retrofit2.Retrofit.a(:260)
at retrofit2.RequestFactory$Builder.a(:706)
at retrofit2.RequestFactory$Builder.a(:295)
at retrofit2.RequestFactory$Builder.a(:182)
at retrofit2.RequestFactory.a(:65)
at retrofit2.ServiceMethod.a(:25)
at retrofit2.Retrofit.a(:168)
at retrofit2.Retrofit$1.invoke(:147)
at java.lang.reflect.Proxy.invoke(Proxy.java:1006)
at $Proxy7.a(Unknown Source)
at company.tap.gosellapi.internal.api.facade.GoSellAPI.a(:228)
at company.tap.gosellapi.open.controllers.SDKSession.j(:389)
at company.tap.gosellapi.open.controllers.SDKSession.c(:366)
at company.tap.gosellapi.open.controllers.SDKSession.a(:327)
at itssportsco.android.app.TapActivity.n(:261)
at itssportsco.android.app.TapActivity.s(:108)
at itssportsco.android.app.TapActivity.onCreate(:88)
at android.app.Activity.performCreate(Activity.java:7327)
at android.app.Activity.performCreate(Activity.java:7318)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1271)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3094)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3257)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1948)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7050)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:965)
Caused by: java.lang.NoSuchFieldException: PURCHASE
at java.lang.Class.getField(Class.java:1601)
at com.google.gson.internal.bind.TypeAdapters$EnumTypeAdapter.(:781)
at com.google.gson.internal.bind.TypeAdapters$30.create(:818) 
at com.google.gson.Gson.getAdapter(:458) 
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.createBoundField(:117) 
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(:166) 
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.create(:102) 
at com.google.gson.Gson.getAdapter(:458) 
at retrofit2.converter.gson.GsonConverterFactory.a(:71) 
at retrofit2.Retrofit.a(:280) 
at retrofit2.Retrofit.a(:260) 
at retrofit2.RequestFactory$Builder.a(:706) 
at retrofit2.RequestFactory$Builder.a(:295) 
at retrofit2.RequestFactory$Builder.a(:182) 
at retrofit2.RequestFactory.a(:65) 
at retrofit2.ServiceMethod.a(:25) 
at retrofit2.Retrofit.a(:168) 
at retrofit2.Retrofit$1.invoke(:147) 
at java.lang.reflect.Proxy.invoke(Proxy.java:1006) 
at $Proxy7.a(Unknown Source) 
at company.tap.gosellapi.internal.api.facade.GoSellAPI.a(:228) 
at company.tap.gosellapi.open.controllers.SDKSession.j(:389) 
at company.tap.gosellapi.open.controllers.SDKSession.c(:366) 
at company.tap.gosellapi.open.controllers.SDKSession.a(:327) 
at itssportsco.android.app.TapActivity.n(:261) 
at itssportsco.android.app.TapActivity.s(:108) 
at itssportsco.android.app.TapActivity.onCreate(:88) 
at android.app.Activity.performCreate(Activity.java:7327) 
at android.app.Activity.performCreate(Activity.java:7318) 
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1271) 
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3094) 
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3257) 
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78) 
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108) 
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1948) 
at android.os.Handler.dispatchMessage(Handler.java:106) 
at android.os.Looper.loop(Looper.java:214) 
at android.app.ActivityThread.main(ActivityThread.java:7050) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:965) 

this at ( itssportsco.android.app.TapActivity.n(:261) ) is pointing to this line of code:
sdkSession.start(this);
inside the configureSDKSession() function

these are my rules:

-dontwarn android.support.v7.**
-keep class android.support.v7.** { ; }
-keep interface android.support.v7.* { *; }

support constraint

-dontwarn android.support.constraint.**
-keep class android.support.constraint.** { ; }
-keep interface android.support.constraint.* { ; }
-keep public class android.support.constraint.R$ { *; }

support

-dontwarn android.support.**

junit

-dontwarn org.junit.**

support design

-dontwarn android.support.design.**
-keep class android.support.design.** { ; }
-keep interface android.support.design.* { ; }
-keep public class android.support.design.R$ { *; }

##---------------Begin: proguard configuration for Gson ----------

Gson uses generic type information stored in a class file when working with fields. Proguard

removes such information by default, so configure it to keep all of it.

-keepattributes Signature

For using GSON @expose annotation

-keepattributes Annotation

Gson specific classes

-dontwarn sun.misc.**
#-keep class com.google.gson.stream.** { *; }

Application classes that will be serialized/deserialized over Gson

-keep class com.google.gson.examples.android.model.** { ; }

Prevent proguard from stripping interface information from TypeAdapter, TypeAdapterFactory,

JsonSerializer, JsonDeserializer instances (so they can be used in @JsonAdapter)

-keep class * implements com.google.gson.TypeAdapter
-keep class * implements com.google.gson.TypeAdapterFactory
-keep class * implements com.google.gson.JsonSerializer
-keep class * implements com.google.gson.JsonDeserializer

Prevent R8 from leaving Data object members always null

-keepclassmembers,allowobfuscation class * {
@com.google.gson.annotations.SerializedName ;
}

##---------------End: proguard configuration for Gson ----------

Retrofit

-keep class com.google.gson.** { ; }
-keep public class com.google.gson.* {public private protected ;}
-keep class com.google.inject.* { ; }
-keep class org.apache.http.* { ; }
-keep class org.apache.james.mime4j.* { ; }
-keep class javax.inject.* { ; }
-keep class javax.xml.stream.* { ; }
-keep class retrofit.* { ; }
-keep class com.google.appengine.* { ; }
-keepattributes Annotation
-keepattributes Signature
-dontwarn com.squareup.okhttp.
-dontwarn rx.**
-dontwarn javax.xml.stream.**
-dontwarn com.google.appengine.**

glide

-keep public class * implements com.bumptech.glide.module.GlideModule
-keep class * extends com.bumptech.glide.module.AppGlideModule {
(...);
}
-keep public enum com.bumptech.glide.load.ImageHeaderParser$** {
**[] $VALUES;
public *;
}

Uncomment for DexGuard only

#-keepresourcexmlelements manifest/application/meta-data@value=GlideModule

FB Login

-keepclassmembers class * implements java.io.Serializable {
private static final java.io.ObjectStreamField[] serialPersistentFields;
private void writeObject(java.io.ObjectOutputStream);
private void readObject(java.io.ObjectInputStream);
java.lang.Object writeReplace();
java.lang.Object readResolve();
}

-keepnames class com.facebook.FacebookActivity
-keepnames class com.facebook.CustomTabActivity

-keep class com.facebook.login.Login

GoSellSdk

-keepattributes Signature
-keepclassmembernames,allowobfuscation interface * {
@retrofit2.http.* ;
}
-dontwarn org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement

#########################################################################
# OkHttp
#########################################################################
-dontwarn okhttp3.**
-dontwarn okhttp2.**
-dontwarn okio.**
-dontwarn javax.annotation.**
-dontwarn org.conscrypt.**
-keepnames class okhttp3.internal.publicsuffix.PublicSuffixDatabase

easy permission

-keepclassmembers class * {
@pub.devrel.easypermissions.AfterPermissionGranted ;
}

-keepnames class **

Payment view is showing automatic when page is load, i want to show payment view when user click on button

FATAL EXCEPTION: main Process: com.wmt.android.demo.walkentokendemo, PID: 28572 java.lang.IllegalArgumentException: bad base-64 at android.util.Base64.decode(Base64.java:161) at android.util.Base64.decode(Base64.java:136) at android.util.Base64.decode(Base64.java:118) at company.tap.gosellapi.api.crypto.CryptoUtil.encrypt(CryptoUtil.java:35) at company.tap.gosellapi.api.crypto.CryptoUtil.encryptJsonString(CryptoUtil.java:27) at company.tap.gosellapi.api.requests.CardRequest$Builder.build(CardRequest.java:71) at com.wmt.android.demo.walkentokendemo.activity.PaymentActivity.createToken(PaymentActivity.java:48) at com.wmt.android.demo.walkentokendemo.activity.PaymentActivity.onClick(PaymentActivity.java:34) at android.view.View.performClick(View.java:6294) at android.view.View$PerformClick.run(View.java:24770) at android.os.Handler.handleCallback(Handler.java:790) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:164) at android.app.ActivityThread.main(ActivityThread.java:6494) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)

I am getting below Error in 2.15.3 and 2.15.4
Binary XML file line #36 in :layout/gosellapi_viewholder_recent_payments: Binary XML file line #36 in :layout/gosellapi_viewholder_recent_payments: Error inflating class

Caused by: java.lang.IllegalArgumentException: The style on this component requires your app theme to be Theme.MaterialComponents (or a descendant).