Camera plugin not working on emulator

Ionic Native
1

I have installed “Camera” plugin,
Typed this, (and imports)

constructor(public camera: Camera)
	takePicture()
	{
		let options: CameraOptions = {
			quality: 100,
			destinationType: this.camera.DestinationType.FILE_URI,
			encodingType: this.camera.EncodingType.PNG,
			mediaType: this.camera.MediaType.PICTURE
		};
		
		this.camera.getPicture(options).then(url => {
			this.path = url;
		}, (err) => {
			alert("Error " + err);

		});

and before this, emulator is working. Now says

UnhandledPromiseRejectionWarning: Command failed with exit code 1 Error output:
Exception in thread "main" java.lang.NoSuchMethodError: com.android.prefs.Android
Location.getAvdFolder()Ljava/lang/String;
       at com.android.sdklib.tool.AvdManagerCli.init(AvdManagerCli.java:278)
       at com.android.sdklib.tool.AvdManagerCli.run(AvdManagerCli.java:210)
       at com.android.sdklib.tool.AvdManagerCli.main(AvdManagerCli.java:200)
   at ChildProcess.whenDone (C:\Users\tensor\swiitetapp\platforms\android/cordov
a\node_modules\cordova-common\src\superspawn.js:169:23)
   at emitTwo (events.js:126:13)
   at ChildProcess.emit (events.js:214:7)
   at maybeClose (internal/child_process.js:925:16)
   at Process.ChildProcess._handle.onexit (internal/child_process.js:209:
node:7652) UnhandledPromiseRejectionWarning: Unhandled promise rejection.
rror originated either by throwing inside of an async function without a
lock, or by rejecting a promise which was not handled with .catch(). (rej
id: 1)
node:7652) [DEP0018] DeprecationWarning: Unhandled promise rejections are
ated. In the future, promise rejections that are not handled will termina
Node.js process with a non-zero exit code.

My application works on ionic serve.

2

Solved: Try delete and re-create virtual device.