Android App Compile Not Generating Package Resources

Question

When attempting to compile my Xamarin.Android app I get the compile error:

Error 3 The file \"obj\\Debug\\android\\bin\\packaged_resources\" does no

Answer 1

I had the problem so I deleted build-tools 24.0.0 and I used build-tools 23.0.3 and the problem solved. Try it!

Answer 2

Another possibility is you have an issue with the installed Android SDK build tools. For me, when I removed the package for Revision 24 it worked.

Answer 3

For me this error was caused by having an invalid attribute value in a layout xml. I had

android:id="button"

changing it to

android:id="@+id/button"

fixed the error.

Answer 4

From Xamarin Forums:

First of all go and deinstall preview tools in your android sdk manager. If you havent installed it but still get the same error then go and deinstall Android SDK Build Tools Rev. 24.

The Problem we have here is that, if you have Appcombat, RecyclerView or something like that in your project, the library rev of these librarys are below rev 24. They are still on 23.2.1 but not on rev 24. So if you installed Build-Tools Rev 24 and want to build your project the build cant find the rev24 resource package of your librarys.

You can check it on your own Go in the SDK Manager and check "Obsolete" Then go to the folder Extras and there you can see "Android Support Library (Obsolete) Rev 23.2.1. And then check if there is Android Support Library Rev 24 in your Extras Folder. No? And thats the Problem here. We got the Update for Build Tools to early and have to wait for Library Update. Then we all can use Build Tools 24!

So only update to BuildTools Rev 24 when we got an update for support librarys and have the rev24 librarys.

Answer 5

Same annoying problem with me! But I found a solution: read carefully this article: https://gxconsultancy.wordpress.com/2016/04/04/to-use-xamarin-or-not-to-us-xamarin/

In short:

• Make sure you have JDK 32bits version 8 at least - same for the JRE, included in the JDK installation kit from Oracle;

• Set your project for using the Xamarin debugger (right-click your project, hit Properties / Android Options / Packaging / Debugger);

• And now the most weird: delete the app/Resources/drawable folder; have a working Xamarin project and copy its "drawable" folders to the erratic project (usually there are several subfolders, like drawable-hdpi, drawable-mdpi and so fort).

• Rebuild your Android project.

Answer 6

I encountered the same issue. Ensure that your resource files do not include any special characters

The actual error you may be encountering is:

Invalid file name: must contain only [a-z0-9_.]

Change your build output verbosity in visual studio to see better log output.