Error when Not Writing Messages

[daryllabar]

System.IO.DirectoryNotFoundException: Could not find a part of the path 'C:\_dev\PATH TO FOLDER\Messages'.
   at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
   at System.IO.FileSystemEnumerableIterator`1.CommonInit()
   at System.IO.FileSystemEnumerableIterator`1..ctor(String path, String originalUserPath, String searchPattern, SearchOption searchOption, SearchResultHandler`1 resultHandler, Boolean checkHost)
   at System.IO.Directory.EnumerateFiles(String path)
   at DLaB.ModelBuilderExtensions.CodeGenerationService.<ConditionallyCombineFiles>g__DeleteEmptyFolder|79_0(String relativeFolder)
   at DLaB.ModelBuilderExtensions.CodeGenerationService.ConditionallyCombineFiles(String language, PacModelBuilderCodeGenHack hack)
   at DLaB.ModelBuilderExtensions.CodeGenerationService.WriteInternal(IOrganizationMetadata organizationMetadata, String language, String outputFile, String targetNamespace, IServiceProvider services)
   at DLaB.ModelBuilderExtensions.CodeGenerationService.Write(IOrganizationMetadata organizationMetadata, String language, String outputFile, String outputNamespace, IServiceProvider services)
Generation Complete!