Deprecated Gradle features were used in this build, making it incompatible with Gradle 7.0.

解决问题：
Deprecated Gradle features were used in this build, making it incompatible with Gradle 7.0.

1 配置gradlew
https://blog.csdn.net/u010042669/article/details/80914656
2 使用gradle --warning-mode all，注意是gradle --warning-mode all 不是gradlew --warning-mode all
https://zhuanlan.zhihu.com/p/122516941

解决一直提示try again问题
打开idea.log，一般在C:\Users\用户名\AppData\Local\Google\AndroidStudio4.2\log
或者直接点击try again提示那一栏第三个选项show Log in Explorer
打开idea.log后，滑到最下面，就是最新的错误信息。