It appears that you copied a few Mendix modules into the widgets folder of the project. It should be noted that MPK files can serve as archives, modules, project papers, or widgets for Mendix projects.
The above-mentioned file has to be removed. The following instructions should be followed if you wanted to import those modules into your app: https://docs.mendix.com/howto/integration/importing-and-exporting-objects
Hope this helps!