android studio2.3取秘钥,如何在Android Studio 2.3.1中获取SHA-1密钥？

当我尝试

gradle(Right corner): My_project: app: click on tasks: android: signingReport

它没有给我任何关键或任何预期的东西.我无法在Android Studio 2.3.1中获得SHA-1密钥.

我明白了：

Run build 761ms

Run init scripts 23ms

Configure settings 1ms

Configure build 343ms

Project : 343ms

Resolve dependencies :classpath 331ms

Calculate task graph 355ms

Project :app 352ms

Resolve dependencies :app:classpath 0ms

Resolve dependencies :app:_debugApk 78ms

Resolve dependencies :app:_debugCompile 12ms

Resolve dependencies :app:_releaseApk 14ms

Resolve dependencies :app:_releaseCompile 59ms

Resolve dependencies :app:_debugUnitTestApk 2ms

Resolve dependencies :app:_debugUnitTestCompile 2ms

Resolve dependencies :app:releaseWearApp 1ms

Resolve dependencies :app:wearApp 0ms

Resolve dependencies :app:_releaseUnitTestApk 1ms

Resolve dependencies :app:_releaseUnitTestCompile 1ms

Resolve dependencies :app:_debugAndroidTestApk 17ms

Resolve dependencies :app:_debugAndroidTestCompile 2ms

Run tasks 10ms

:app:signingReport 4ms

提前致谢.