Can't compile into webpage using Angular CLI (ng build) about ng2-fullcalendar

[Seao]

I'm trying to upgrade an ionic app changing to Ionic 3 & Angular 4 and I have the same issue. I'm compiling with ionic cordova run ios --rollup --prod. It's working without the --prod flag.

Package

• angular/core: 4.1.2,
• angular/compiler-cli: 4.1.2
• angular2-fullcalendar: ^1.1.1

Issue

$ ionic cordova run ios --rollup --prod
Running app-scripts build: --prod --address 0.0.0.0 --port 8100 --p 8100 --livereload-port 35729 --r 35729 --iscordovaserve --externalIpRequired --nobrowser

[16:54:04]  build prod started ... 
[16:54:04]  clean started ... 
[16:54:04]  clean finished in 2 ms 
[16:54:04]  copy started ... 
[16:54:04]  ngc started ...
[WARN] Error occurred during command execution from a CLI plugin (@ionic/cli-plugin-cordova). Your plugins may be out of date.
Error: Error encountered resolving symbol values statically. Calling function 'makeDecorator', function calls are not supported. Consider replacing the function or lambda with a reference to an exported function, resolving symbol Injectable in /Users/seao/hbc_app/node_modules/angular2-fullcalendar/node_modules/@angular/core/src/di/metadata.d.ts, resolving symbol OpaqueToken in /Users/seao/hbc_app/node_modules/angular2-fullcalendar/node_modules/@angular/core/src/di/opaque_token.d.ts, resolving symbol OpaqueToken in /Users/seao/hbc_app/node_modules/angular2-fullcalendar/node_modules/@angular/core/src/di/opaque_token.d.ts```

[KrisBraun]

I got the same error when trying to import this package as a module.

I don't think this package is using the correct approach by including the component directly rather than importing a module, because it's pulling in a separate dependancy on a specific version of Angular. This package uses proper module imports and works for me: https://github.com/lbertenasco/ap-ng2-fullcalendar

[giorgiofellipe]

@nekken the solution is kinda straightforward, could you please take a look?

[giorgiofellipe]

Specifying paths to @angular inside AngularCLI’s tsconfig.json solved for me.

“paths”: { “@angular/*“: [“../node_modules/@angular/*“] }