openxr project cannot open in unreal4.27 about microsoft-openxr-unreal

[fieldsJacksonG]

Change this line from "4.26.0" to "4.27.0" :

Microsoft-OpenXR-Unreal/MsftOpenXRGame/Plugins/MicrosoftOpenXR/MicrosoftOpenXR.uplugin

Line 13 in fccb12a

"EngineVersion": "4.26.0",

Then right click on the uproject and select "Generate Visual Studio project files"

This happens because the source project and plugin are developed in 4.26 so we can maintain backwards compatibility.

The releases here: https://github.com/microsoft/Microsoft-OpenXR-Unreal/releases
have already done this (see 4.27.zip in each release's "Assets" dropdown), which are then uploaded to the Unreal Marketplace.

[tahoorasf1]

@fieldsJacksonG
thanks for answering I check your answer. it is not from there. the EngineVersion in MicrosoftOpenXR.uplugin was 4.27.0. I still get the same errors. and the release version 4.27.zip is not working. so I cannot even open it on my computer.

.

[fieldsJacksonG]

How are you opening the project after changing the version to 4.27 (from 4.26)?
Are you right-clicking on the uproject and switching the engine version to 4.27, then opening the sln and building from Visual Studio?

I can repro this by opening the 4.26 project (from GitHub source) from a 4.27 engine and converting as a copy. This looks like what you have done, since the " 427" appended to your project name "MsftOpenXRGame 4.27" is added from a 4.27 copy-conversion. However, I do see a message prompt that the plugin was designed for 4.26 and need to click "yes" that I want to load anyway (this will always cause this failure!)
After I change the uplugin file to 4.27, this does go away for me.

Please make sure you have modified the uplugin file in "C:\users\stud8\Desktop\projectopenxr\Microsoft-OpenXR-Unreal\MsftOpenXRGame 4.27\Plugins\MicrosoftOpenXR" rather than the original source "C:\users\stud8\Desktop\projectopenxr\Microsoft-OpenXR-Unreal\MsftOpenXRGame\Plugins\MicrosoftOpenXR"

You can also try deleting the "Binaries", "DerivedDataCache", and "Intermediate" directories and trying to open the project again (this will guarantee that Unreal is not caching anything from an older build)

[tahoorasf1]

I fixed it myself. after changing the version of the project the way you told me. I deleted the plugin 4.27 and put the latest version from the GitHub inside of the project. then It will work correctly.