Error The "ResolveLibraryProjectImports" task failed unexpectedly

Question

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       

Answer 1

https://forums.xamarin.com/discussion/92979/error-the-resolvelibraryprojectimports-task-failed-unexpectedly

Here is the problem: 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.

Try to move you project to another location like "C:/" , or change the name of the project for something more brief

Answer 2

the solution is edit your android project file (csproj) like below

https://github.com/xamarin/AndroidSupportComponents/issues/51