1.1. 一直在installing apk

解决方法：去掉instant run勾选的这个框

1.2. Expected BEGIN_ARRAY but was STRING at line 1 column 1 path

碰到这类问题直接把build的删除掉，重新运行

1.3. Gradle sync failed问题

（1）Failed to open zip file.

Gradle's dependency cache may be corrupt (this sometimes occurs after a network connection timeout.)

Re-download dependencies and sync project (requires network)

Re-download dependencies and sync project (requires network)

解决办法：

1.4. Gradle build 报错：Received status code 400 from server: Bad Request

解决办法：去掉  C:\Users\***\.gradle\gradle.properties里面的四行代理设置

ps：很早以前整理的，可能已经不适用新版本了，欢迎指教