Unable to build to Android

Unity Engine
1

Hi
I have a game where I got the code from the developer who can’t work on it anymore and I have upgraded to newer version of Unity, it was made in 2017.

I got it working in Unity but can’t build for Android. It gives me some warnings but I think the problem is this:

error: CS0103: The name ‘UniAndroidPermission’ does not exist in the current context.
I use Visual Studio 2017 on Windows 10.

and this is the code, what could be missing:

#if UNITY_ANDROID && !UNITY_EDITOR

if (!UniAndroidPermission.IsPermitted (AndroidPermission.CAMERA)) {

UniAndroidPermission.RequestPremission (AndroidPermission.CAMERA, () => {

StartCoroutine (“GoCam”);

}, () => {

StartCoroutine (“NoGoCam”);

});

}else

StartCoroutine (“GoCam”);

#else

2

I found this and tried to just import the package but I still get the error

Could there be anything else to be done to get this error corrected ?