gradle signingReport构建失败，遇Unsupported class file major v65错误求助

错误日志 #

FAILURE: Build failed with an exception.

* Where:
Settings file '/Users/dcl/Desktop/Mobile Apps/QuizFusion/android/settings.gradle' line: 11

* What went wrong:
A problem occurred evaluating settings 'android'.
> Could not open dsl generic class cache for script '/Users/dcl/Desktop/flutter/packages/flutter_tools/gradle/app_plugin_loader.gradle' (/Users/dcl/.gradle/caches/7.5/scripts/2b2truhe447thkmu9cehwsnd4).
   > BUG! exception in phase 'semantic analysis' in source unit '_BuildScript_' Unsupported class file major version 65

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.

* Get more help at https://help.gradle.org

当前环境信息 #

------------------------------------------------------------
Gradle 7.5
------------------------------------------------------------

Build time:   2022-07-14 12:48:15 UTC
Revision:     c7db7b958189ad2b0c1472b6fe663e6d654a5103

Kotlin:       1.6.21
Groovy:       3.0.10
Ant:          Apache Ant(TM) version 1.10.11 compiled on July 10 2021
JVM:          21.0.1 (Oracle Corporation 21.0.1+12-LTS-29)
OS:           Mac OS X 14.1 x86_64

解决方法 #

方案1：降级JDK到17版本 #

Gradle 7.5最高仅支持JDK 17，你当前使用的JDK 21对应class文件版本65，两者不兼容。

• 通过Android Studio配置：打开Settings → 搜索SDK Location → 在JDK Location下拉菜单选择下载JDK 17，或手动指定已安装的JDK 17路径，同步项目后重新执行命令。
• 终端临时切换（以sdkman为例）：执行sdk use java 17.0.10-oracle，再运行gradle signingReport。

方案2：升级Gradle到支持JDK 21的版本 #

Gradle 8.0及以上版本支持JDK 21，步骤如下：

1. 打开项目的android/gradle/wrapper/gradle-wrapper.properties文件。
2. 修改distributionUrl为兼容版本，比如：distributionUrl=https\://services.gradle.org/distributions/gradle-8.2-all.zip。
3. 同步项目后，重新执行gradle signingReport。

内容的提问来源于stack exchange，提问作者DSM