Xamarin Forms Android Error: Please install package 'Android Support Library'

Question

I recently uploaded my project to Git, and used a auto-generated Xamarin/Windows/MacOS/VisualStudio .gitignore file. I did a lot of work and testing on iOS, but now I\'m com

Answer 1

It looks like the zip can get corrupted (I think I might have killed VS as I hadn't realised it was downloading a >100MB file).

If that's the case, just clear out the zip cache: C:\Users\dev\AppData\Local\Xamarin\zips and they'll all be re-downloaded.

Answer 2

Delete all foldeC:\Users[username]\AppData\Local\Xamarin. And then rebuild your project.

Hope this help

Answer 3

1: Download "https://dl-ssl.google.com/android/repository/android_m2repository_r22.zip" into your (mediafire.com or other upload center websites)

2: Download "android_m2repository_r22.zip" from your mediafire panel into your computer

3: Rebuild your solution to get list of error codes

4: Find error(Error Reason: "C:\Users\Vahid\AppData\Local\Xamarin\zips\96659D653BDE0FAEDB818170891F2BB0.zip" is not a valid zip file)

5: Copy your android_m2repository_r22.zip into "C:\Users\Vahid\AppData\Local\Xamarin\zips\" directory

6: Rename "android_m2repository_r22.zip" to "96659D653BDE0FAEDB818170891F2BB0.zip"

7: Rebuild your solution

8: Enjoy xamarin form.

List of md5 name for your download file are available in "https://developer.xamarin.com/guides/android/troubleshooting/resolving-library-installation-errors/#Manually_Downloading_m2repository"

Answer 4

Sometimes Android Studio will not download package because of network issues.

Here the solution for that.

Download zip package directly from https://dl-ssl.google.com/android/repository/android_m2repository_r22.zip

Delete existing package zip from C:\Users\josec\AppData\Local\Xamarin\zips and Put the downloaded package zip into it.

Answer 5

Please download and install https://dl-ssl.google.com/android/repository/android_m2repository_r10.zip and extract it to the C:\Users\dev\AppData\Local\Xamarin\Android.Support.v4\21.0.3\content directory.

Answer 6

I'm just posting the Mohamed Elrashid's comment as an answer Because I think this is the best solution. Because it is in a comment and most of the people do not try this first.

You can DELETE everything in Corresponding the folder C:\Users\dev\AppData\Local\Xamarin\Android.Support.v4\21.0.3\ and Xamarin will automatically download again

It is valid for 22.2.1 version too, so I think it is a general solution of every version(guess)

EDIT => Please follow the ans by Jason that always works.

Suggestion: all these kind off error has a link for the zip to download and where to save it to fix. So for all other zip files follow the same ans.