When ever I try to run my project I get this error:
C:\Program Files (x86)\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets(2,2): Error MSB4018: The "Aapt" task failed unexpectedly.
System.InvalidOperationException: Sequence contains no elements
at System.Linq.Enumerable.First[TSource](IEnumerable`1 source)
at Xamarin.Android.Tasks.BuildToolsUtils.GetBuildToolsPath(String androidSdkDirectory)
at Xamarin.Android.Tasks.Aapt.GenerateFullPathToTool()
at Microsoft.Build.Utilities.ToolTask.ComputePathToTool()
at Microsoft.Build.Utilities.ToolTask.Execute()
at Xamarin.Android.Tasks.Aapt.Execute()
at Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutionHost.Execute()
at Microsoft.Build.BackEnd.TaskBuilder.<ExecuteInstantiatedTask>d__20.MoveNext() (MSB4018) (test)
And I dont know how to fix it.
What is wrong and how do I fix it.