Unable to remove external diff tool in PyCharm


When I attempt to remove an external diff tool (Tools | Diff & Merge | External Diff Tools), I get the following dialogue box:

Unable to Delete Selected Tool
This tool is used in configuration. First remove the configuration in table

This does not appear to be a run configuration. Where then, is said configuration table? And how do I remove it?


Which tools do you have it configured? Please share a screenshot of Settings | Tools | Diff & Merge | External Diff Tools

Double-check also if there is no path/configuration set for one of the tools you had set up under Settings | Version Control. Might be there is still some config there.