Room-使用需要引入

  def room_version = "2.2.6"

  implementation "androidx.room:room-runtime:$room_version"
  kapt "androidx.room:room-compiler:$room_version"

  // optional - Kotlin Extensions and Coroutines support for Room
  implementation "androidx.room:room-ktx:$room_version"

  // optional - Test helpers
  testImplementation "androidx.room:room-testing:$room_version"

但是引入后运行第一个报错

 Could not find method kapt() for arguments 

然后在加入这个即可

apply : apply : dependencies

不能把kapt换成implementation,那样解决不了问题,会更乱