XrmToolBox Error When Loading

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When opening the XrmToolBox, you may come across errors such as:

  • System.TypeLoadException: Could not load type XrmToolBox.Extensibility.Interaces.INoConnectionRequired
  • System.IO.FileNotFoundException: Could not load file or assembly ‘WeifenLuo.WinFormsUI.Docking, Version=, Culture=neutral, PublicKeyToken=5cded1a1a0a7b481’ or one of its dependencies. The system cannot find the file specified.

The problem here is to do with one of the plugins that is in your XrmToolBox environment. To resolve this, go to: %appdata%\MscrmTools\XrmToolBox\Plugins\

Copy the files from the Plugins folder to a new folder.

Open XrmToolBox. The Plugins folder will be recreated, but you will lose some previously installed plugins. You will need to manually reinstall these.



Carl de Souza is a developer and architect focusing on Microsoft Dynamics 365, BI, Web, Cloud and Data Science.

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