I exported Unity project and then imported it into Android Studio, but following error occurred when building

Execution failed for task ':unityLibrary:unity-android-resources:compileDebugJavaWithJavac'.

Failed to calculate the value of task ':unityLibrary:unity-android-resources:compileDebugJavaWithJavac' property 'options.generatedSourceOutputDirectory'.
Querying the mapped value of map(java.io.File property(org.gradle.api.file.Directory, fixed(class org.gradle.api.internal.file.DefaultFilePropertyFactory$FixedDirectory, /home/gbstack/Unity/Projects/ads-test/android-export/unityLibrary/unity-android-resources/build/generated/ap_generated_sources/debug/out)) org.gradle.api.internal.file.DefaultFilePropertyFactory$ToFileTransformer@481ca56c) before task ':unityLibrary:unity-android-resources:compileDebugJavaWithJavac' has completed is not supported

• Exception is:
  org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':unityLibrary:unity-android-resources:compileDebugJavaWithJavac'.
  at org.gradle.api.internal.tasks.properties.DefaultTaskProperties.resolve(DefaultTaskProperties.java:82)
  at org.gradle.execution.plan.LocalTaskNode.resolveMutations(LocalTaskNode.java:200)
  ...

  Caused by: org.gradle.api.InvalidUserCodeException: Querying the mapped value of map(java.io.File property(org.gradle.api.file.Directory, fixed(class org.gradle.api.internal.file.DefaultFilePropertyFactory$FixedDirectory, /home/gbstack/Unity/Projects/ads-test/android-export/unityLibrary/unity-android-resources/build/generated/ap_generated_sources/debug/out)) org.gradle.api.internal.file.DefaultFilePropertyFactory$ToFileTransformer@481ca56c) before task ':unityLibrary:unity-android-resources:compileDebugJavaWithJavac' has completed is not supported
  at org.gradle.api.internal.provider.TransformBackedProvider.lambda$beforeRead$0(TransformBackedProvider.java:84)
  at org.gradle.api.internal.provider.ValueSupplier$TaskProducer.visitContentProducerTasks(ValueSupplier.java:136)
  at org.gradle.api.internal.provider.TransformBackedProvider.beforeRead(TransformBackedProvider.java:81)
  at org.gradle.api.internal.provider.TransformBackedProvider.calculateOwnValue(TransformBackedProvider.java:63)
  at org.gradle.api.internal.provider.AbstractMinimalProvider.calculateValue(AbstractMinimalProvider.java:103)
  ...

Solution

Changing gradle from 7.1 to version to 6.x will fix this problem. I tried both 6.1 and 6.9, and both works

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