Could not find com.android.support:appcompat-v7:25.1.0

[wtobi]

I'm getting this error in Android_Me-TFragments.02-Solution-DisplayThreeFragments:

Could not find com.android.support:appcompat-v7:25.1.0

I tried to run the solution because it wouldn't work in the exercise code in the first place.

Please fix this!

[kareem-farag]

Same error here.

[LaszloLajosT]

I think your problem is that you migrate AndroidX but never really changed the dependency in build.gradle(Module:app) file.
OR
You didn't change the "compileSdkVersion" and "targetSdkVersion to your installed SDK.
OR
You changed your the versions above but never installed those Android SDK.

I am working on to update the code dependencies to my current installed SDK version (version 29 alias Android 10(Q)).
I will share it and make a pull request when I am done with it.
Once it's done you can have a look and compare to your version and ask if something is not clear.