OutputBuildAction has been compiled by a more recent version of the Java Runtime (class file version-优快云博客

本文链接：https://blog.youkuaiyun.com/zhijiandedaima/article/details/127005029

在尝试用Android Studio Dolphin（2021.3.1）运行旧项目时，遇到`UnsupportedClassVersionError`错误，原因是新版本使用了更高版本的Java运行时。解决方法包括：使用旧版AS（如2020.3.1.22）或升级项目依赖至兼容版本，例如将AGP从3.6.3升级到4.2.2，Gradle从6.4.1升级到6.7.1，并考虑更新至JDK 11。

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旧项目的开发环境：

Android Studio Dolphin | 2021.3.1
AGP：3.6.3
Gradle：6.4.1
jdk：1.8

错误信息

使用最新版本的 Android Studio （Dolphin | 2021.3.1），运行旧项目时报错：

FAILURE: Build failed with an exception.

* What went wrong:
com/android/tools/idea/gradle/run/OutputBuildAction has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0

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

* Exception is:
java.lang.UnsupportedClassVersionError: com/android/tools/idea/gradle/run/OutputBuildAction has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0
	at org.gradle.tooling.internal.provider.serialization.DefaultPayloadClassLoaderRegistry$2.resolveClass(DefaultPayloadClassLoaderRegistry.java:93)
	at org.gradle.tooling.internal.provider.serialization.WellKnownClassLoaderRegistry$2.resolveClass(WellKnownClassLoaderRegistry.java:91)
	at org.gradle.tooling.internal.provider.serialization.PayloadSerializerObjectInputStream.readClass(PayloadSerializerObjectInputStream.java:66)
	at org.gradle.tooling.internal.provider.serialization.PayloadSerializerObjectInputStream.readClassDescriptor(PayloadSerializerObjectInputStream.java:46)
	at org.gradle.tooling.internal.provider.serialization.PayloadSerializer.deserialize(PayloadSerializer.java:74)
	at org.gradle.tooling.internal.provider.runner.ClientProvidedBuildActionRunner.run(ClientProvidedBuildActionRunner.java:47)
	at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)
	at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)
	at org.gradle.launcher.exec.BuildOutcomeReportingBuildActionRunner.run(BuildOutcomeReportingBuildActionRunner.java:63)
	at org.gradle.tooling.internal.provider.ValidatingBuildActionRunner.run(ValidatingBuildActionRunner.java:32)
	at org.gradle.launcher.exec.BuildCompletionNotifyingBuildActionRunner.run(BuildCompletionNotifyingBuildActionRunner.java:39)
	at org.gradle.launcher.exec.RunAsBuildOperationBuildActionRunner$3.call(RunAsBuildOperationBuildActionRunner.java:51)
	at org.gradle.launcher.exec.RunAsBuildOperationBuildActionRunner$3.call(RunAsBuildOperationBuildActionRunner.java:45)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:416)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:406)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:165)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:250)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:158)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:102)
	at org.gradle.internal.operations.DelegatingBuildOperationExecutor.call(DelegatingBuildOperationExecutor.java:36)
	at org.gradle.launcher.exec.RunAsBuildOperationBuildActionRunner.run(RunAsBuildOperationBuildActionRunner.java:45)
	at org.gradle.launcher.exec.InProcessBuildActionExecuter$1.transform(InProcessBuildActionExecuter.java:50)
	at org.gradle.launcher.exec.InProcessBuildActionExecuter$1.transform(InProcessBuildActionExecuter.java:47)
	at org.gradle.composite.internal.DefaultRootBuildState.run(DefaultRootBuildState.java:80)
	at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:47)
	at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:31)
	at org.gradle.launcher.exec.BuildTreeScopeBuildActionExecuter.execute(BuildTreeScopeBuildActionExecuter.java:42)
	at org.gradle.launcher.exec.BuildTreeScopeBuildActionExecuter.execute(BuildTreeScopeBuildActionExecuter.java:28)
	at org.gradle.tooling.internal.provider.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:87)
	at org.gradle.tooling.internal.provider.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:55)
* Get more help at https://help.gradle.org

BUILD FAILED in 190ms