When using the Ribbon Workbench tool in XrmToolbox, you may run into this error when trying to open it:
An error occurred when trying to display this tool: Unable to cast object of type ‘Microsoft.Xrm.Tooling.Connector.CrmServiceClient’ to type ‘Microsoft.Xrm.Sdk.Client.OrganizationServiceProxy’:
To resolve this, go to Tool Library:
Select the Ribbon Workbench and click Uninstall:
This will restart XrmToolbox. Now, go back to Tool Library and Install the Ribbon Workbench:
We see the Ribbon Workbench is now installed. Interestingly, the version does not show “2016” like it did when we opened it the first time:
Clicking on Ribbon Workbench now opens without the error:
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