CMake: No index file

winIDEA relies on CMake's File API to obtain information about the project beyond the required CMake Presets file and will show a "No index file" error when it doesn't receive the expected reply from the API. 

The Configure and Build Presets have likely been correctly defined, but a successful Generate step has not yet been run in the current binary directory.

Possible solutions

You can perform the following from the CMake Toolbar:

• Reload the presets via the Reload CMake Presets button.
• Generate the project via the Generate button.

More resources in winIDEA Help

• CMake