Error The "ResolveLibraryProjectImports" task failed unexpectedly

user_1268971 0
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I'm getting and error when trying to compile an Android project in VS2017 with Xamarin. I was getting a string type not allowed error and one of the suggestions was to update all my Xamarin.Android references. I found one that dealt with observables for the Xamarin.Core so I installed it. Every since then I have been getting the resolution error. I have tried deleting the obj and bin directories and restart vs and my laptop.

Here is the text for the error

Error       The "ResolveLibraryProjectImports" task failed unexpectedly.
System.IO.PathTooLongException: The specified path, file name, or both are too >long. The fully qualified file name must be less than 260 characters, and the >directory name must be less than 248 characters.
   at System.IO.PathHelper.GetFullPathName()
   at System.IO.Path.LegacyNormalizePath(String path, Boolean fullCheck, Int32 > maxPathLength, Boolean expandShortPaths)
   at System.IO.Path.NormalizePath(String path, Boolean fullCheck, Int32   >maxPathLength, Boolean expandShortPaths)
   at System.IO.Path.NormalizePath(String path, Boolean fullCheck, Int32 >maxPathLength)
   at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, >Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, >FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean >bFromProxy, Boolean useLongPath, Boolean checkHost)
   at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess >access, FileShare share)
   at System.IO.File.Open(String path, FileMode mode)
   at Xamarin.Tools.Zip.ZipEntry.DoExtract(IntPtr zipFile, String >destinationPath, FileMode outputFileMode, EntryExtractEventArgs args)
   at Xamarin.Tools.Zip.ZipEntry.Extract(String destinationDir, String >destinationFileName, FileMode outputFileMode)
   at Xamarin.Android.Tools.Files.ExtractAll(ZipArchive zip, String >destination, Action`2 progressCallback)
   at Xamarin.Android.Tasks.ResolveLibraryProjectImports.Extract   (DirectoryAssemblyResolver res, ICollection`1 jars, ICollection`1 >resolvedResourceDirectories, ICollection`1 resolvedAssetDirectories, >ICollection`1 resolvedEnvironments)
   at Xamarin.Android.Tasks.ResolveLibraryProjectImports.Execute()
   at >Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutio>nHost.Execute()
   at >Microsoft.Build.BackEnd.TaskBuilder.<ExecuteInstantiatedTask>d__26.MoveNext()    LayoutExample.Android
visual-studio-2017 xamarin android
5 Answers
user_17674820

Had same problem. This is how I fixed it

  1. Restart Visual Studio
  2. Open the Project
  3. Clean the solution
  4. Rebuild the solution
  5. Close solution
  6. Reopen the project
user_35813860

I was getting this when I added a reference to Xamarin.GooglePlayServices.Ads to my project via NuGet. As soon as I did this I got the same issue as the OP. Moving my code to the root directory of my C drive didn't help either, unfortunately; however, per Alper Ebicoglu's suggestion, I added...

<UseShortFileNames>True</UseShortFileNames>

... To my project file in the property group for my build configs. After I reloaded the project in Visual Studio, I was able to get my project to build.

Hope this helps!

user_87737770
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