问题：Unity打包Android报错：
CommandInvokationFailure: Gradle build failed.
C:\Program Files\Java\jdk1.8.0_241\bin\java.exe -classpath "D:\Program Files\Unity\Hub\Editor\2018.3.14f1\Editor\Data\PlaybackEngines\AndroidPlayer\Tools\gradle\lib\gradle-launcher-4.6.jar" org.gradle.launcher.GradleMain "-Dorg.gradle.jvmargs=-Xmx4096m" "assembleRelease"
stderr[
FAILURE: Build failed with an exception.
* What went wrong:
A problem occurred configuring root project 'gradleOut'.
> Failed to find Build Tools revision 30.0.0
* 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
原因：按照报错"Failed to find Build Tools revision 30.0.0"，Build Tools版本是30.0.0，找到Android Studio的SDK设置，版本是"30.0.0-rc1/30.0.0-rc2"，名字不对应，unity识别不到
解决：直接在Android Studio中删除Build Tools的"30.0.0-rc1/30.0.0-rc2"版本
试过到处Android工程，用Android Studio打包，不过还有同样报错问题
参考：unity 打包安卓apk时出现错误 Failed to find Build Tools revision 29.0.0
