将构建工具更改为21

Question

Warning : Project is building density based multiple APKs but using tools version 19, you should upgrade to build-tools 21 or above to ensure proper packaging of resources

好的，上面是我运行应用程序时在我的gradle控制台中出现的2个错误。该应用程序无法运行，只是停止。如何将构建工具更改为21？

Answer 1

在Android Studio中：

• 工具 - ＆gt; Android - ＆gt; Sdk Manager并安装 build-tools 21.0.2 。

• 在android块中更改 build.gradle

  compileSdkVersion 21 buildToolsVersion＆＃34; 21.0.2＆＃34;