unable to upload to android studio emulator on MAC

Firstly,
    it indicates like: 
`“Device supports x86, but APK only supports armeabi-v7a”`
So, according to Stackoverflow question suggested, I comment out
```
  ndk {  abiFilters "armeabi", "armeabi-v7a" //, "x86", "mips"   }
```
The app has been uploaded to emulator but crashed.