When i join with my client on my chat-server. The server gives me this error: Der Server l?uft! jakk has joined. Missing method SetProjectError in assembly /var/www/Server.exe, type Microsoft.VisualBasic.CompilerServices.ProjectData Unhandled Exception: System.IO.FileNotFoundException: Could not load file or assembly ‘Microsoft.VisualBasic, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a’ or one of its dependencies. File name: ‘Microsoft.VisualBasic, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a’ at Server.Module1.Lambda$_1 (System.Object a0) [0x00000] in :0