Error 000819: The tool is not available or is unassigned

[ErnejunCorvera]

I tried to create workflow database using Create Workflow Database tool but returns an error 000819. I have an advance(personal) desktop license with ArcGIS workflow manager installed.

[DMFACER]

We are still having the issue in 10.5.1 with tools created in the Data Interoperability Extension.

[skcchan]

Encountered this error with the Location Referencing toolbox on 10.6.

[anayoung]

I just started in 10.6 today and the error showed up for me while using the tool "Generate Events" but turning off background processing helped.