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System.IO.PathTooLongException when building Asp.Net Core project

When I build project with Visual Studio 2016 update 3 Asp.Net Core I receive this error and the build is terminated:

Severity Code Description Project File Line Suppression State Error MSB4018 The "FindConfigFiles" 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.Path.NormalizePath(String path, Boolean fullCheck, Int32 maxPathLength, Boolean expandShortPaths) at System.IO.Path.GetDirectoryName(String path) at System.IO.FileSystemEnumerableIterator1..ctor(String path, String originalUserPath, String searchPattern, SearchOption searchOption, SearchResultHandler1 resultHandler, Boolean checkHost) at System.IO.Directory.EnumerateFiles(String path) at TypeScript.Tasks.FileHelpers.RecursiveGatherFiles(String directoryPath, String projectPath, Func2 filter) at TypeScript.Tasks.FileHelpers.RecursiveGatherFiles(String directoryPath, String projectPath, Func2 filter) at TypeScript.Tasks.FileHelpers.RecursiveGatherFiles(String directoryPath, String projectPath, Func2 filter) at TypeScript.Tasks.FileHelpers.RecursiveGatherFiles(String directoryPath, String projectPath, Func2 filter) at TypeScript.Tasks.FileHelpers.RecursiveGatherFiles(String directoryPath, String projectPath, Func2 filter) at TypeScript.Tasks.FileHelpers.RecursiveGatherFiles(String directoryPath, String projectPath, Func2 filter) at TypeScript.Tasks.FileHelpers.RecursiveGatherFiles(String directoryPath, String projectPath, Func2 filter) at TypeScript.Tasks.FileHelpers.RecursiveGatherFiles(String directoryPath, String projectPath, Func2 filter) at TypeScript.Tasks.FileHelpers.RecursiveGatherFiles(String directoryPath, String projectPath, Func2 filter) at TypeScript.Tasks.FileHelpers.RecursiveGatherFiles(String directoryPath, String projectPath, Func2 filter) at TypeScript.Tasks.FileHelpers.RecursiveGatherFiles(String directoryPath, String projectPath, Func2 filter) at TypeScript.Tasks.FileHelpers.RecursiveGatherFiles(String directoryPath, String projectPath, Func2 filter) at TypeScript.Tasks.FileHelpers.RecursiveGatherFiles(String directoryPath, String projectPath, Func2 filter) at TypeScript.Tasks.FileHelpers.RecursiveGatherFiles(String directoryPath, String projectPath, Func2 filter) at TypeScript.Tasks.FileHelpers.RecursiveGatherFiles(String directoryPath, String projectPath, Func2 filter) at TypeScript.Tasks.FileHelpers.RecursiveGatherFiles(String directoryPath, String projectPath, Func2 filter) at TypeScript.Tasks.FileHelpers.RecursiveGatherFiles(String directoryPath, String projectPath, Func2 filter) at TypeScript.Tasks.FileHelpers.RecursiveGatherFiles(String directoryPath, String projectPath, Func2 filter) at TypeScript.Tasks.FileHelpers.RecursiveGatherFiles(String directoryPath, String projectPath, Func2 filter) at TypeScript.Tasks.FileHelpers.RecursiveGatherFiles(String directoryPath, String projectPath, Func2 filter) at TypeScript.Tasks.FileHelpers.RecursiveGatherFiles(String directoryPath, String projectPath, Func2 filter) at TypeScript.Tasks.FileHelpers.RecursiveGatherFiles(String directoryPath, String projectPath, Func2 filter) at TypeScript.Tasks.FileHelpers.RecursiveGatherFiles(String directoryPath, String projectPath, Func2 filter) at TypeScript.Tasks.FileHelpers.RecursiveGatherFiles(String directoryPath, String projectPath, Func2 filter) at TypeScript.Tasks.FileHelpers.RecursiveGatherFiles(String directoryPath, String projectPath, Func2 filter) at TypeScript.Tasks.FileHelpers.RecursiveGatherFiles(String directoryPath, String projectPath, Func2 filter) at TypeScript.Tasks.FileHelpers.RecursiveGatherFiles(String directoryPath, String projectPath, Func`2 filter) at TypeScript.Tasks.FileHelpers.RecursiveGatherConfigFiles(String directoryPath, String projectPath) at TypeScript.Tasks.FindConfigFiles.FindConfigFilesOnDisk() at TypeScript.Tasks.FindConfigFiles.Execute() at Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutionHost.Execute() at Microsoft.Build.BackEnd.TaskBuilder.d__26.MoveNext() D:\weblFront\frontWeb\src\frontWeb\frontWeb.xproj C:\Program Files (x86)\MSBuild\Microsoft\VisualStudio\v14.0\TypeScript\Microsoft.TypeScript.targets 156

I do not use any tool etc. Only Gulp. How to fix this problem please.

Solution

  • It looks like a simple error caused by a path (probably in a dependency) being too long for Windows. You may be able to solve this just by shortening the path to the folder with your code.

    e.g. Try moving the project folder

    from D:\weblFront\frontWeb\src\frontWeb\frontWeb\

    to D:\Code\frontWeb\