android studio显示no debuggable processes

1.在菜单的Tools -> Android -> 勾选 Enable ADB Integration

2.在工程的build.gradle加入标红的那一句

release {
    debuggable true
    signingConfig signingConfigs.releaseConfig
    minifyEnabled false
    proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}