Could not open cp_proj generic class cache for build file

[eseidel]

@Moinuddin9777 writes:

For me this very issue came up after migrating an old project, I had no implementation of shorebird in that project.

FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring project ':app'.
> Could not open cp_proj generic class cache for build file '/Users/username/projects/project_name/android/app/build.gradle' (/Users/username/.gradle/caches/7.3.3/scripts/euzwbzznt4f7dpdx1y8ys6uaz).
   > BUG! exception in phase 'conversion' in source unit '_BuildScript_' class org.codehaus.groovy.ast.expr.TupleExpression cannot be cast to class org.codehaus.groovy.ast.expr.ArgumentListExpression (org.codehaus.groovy.ast.expr.TupleExpression and org.codehaus.groovy.ast.expr.ArgumentListExpression are in unnamed module of loader org.gradle.internal.classloader.VisitableURLClassLoader @6767c1fc)

What all I tried:

• flutter clean then flutter pub get
• flutter clean then flutter . create
• migrating settings.gradle, build.gradle, app/build.gradle as per documentation
• commented out sub projects
• deleted the whole .gradle file which has 7.3.3 as AGP
• re built the project which created the .gradle with 7.3.3 AGP
• removed and replaced the .gradle folder with a new one from a newly created project which had 7.6.0 AGP
• flutter clean and flutter pub get
• stashed gradle changes and run the project

• rm rf .gradle/caches and rebuild (just now)

  In my case it might be due to deprecation of some files in .gradle

Originally posted by @Moinuddin9777 in https://github.com/shorebirdtech/shorebird/issues/1393#issuecomment-2298068855

[eseidel]

@Moinuddin9777 We would love to help.

My guess is that this is https://stackoverflow.com/questions/32513740/gradle-build-failure-could-not-open-proj-class-cache-for-build-file

And the probably shorebird is finding the wrong java binary?

You can test this theory by comparing the output of flutter doctor -v and shorebird doctor -v and making sure they find the same java

When you run flutter build apk your App builds correctly, but then it fails when built with shorebird release android correct?

[eseidel]

Would love to help, but would need more information. Please don't hesitate to reach out if we can be of help! https://discord.gg/shorebird reaches us live every day.