It seems that your device does not support camera(or it is locked)

Question

Android opencv samples and tutorials were running fine and suddenly one day I get this for all of those:
"It seems that your device does not support camera (or it is locked). The application will be closed"
Please help, how to I can fix it?

I have reinstalled opencv and imported again and made new emulators but the problem still persists.

Answer 1

Go to your device settings -> apps -> YOUR APP -> Permissions -> turn on camera permission..

Worked for me..

Answer 2

Check the camera permission in AndroidManifest.xml.

<uses-permission android:name="android.permission.CAMERA"/>

    <uses-feature android:name="android.hardware.camera"/>
    <uses-feature android:name="android.hardware.camera.autofocus"/>
    <uses-feature android:name="android.hardware.camera.front"/>
    <uses-feature android:name="android.hardware.camera.front.autofocus"/>

Its working for me..