Custom widget not coming in widget list

Hi, I have gone through of the following document And stated creating custom widget. but after successful creation of the same it is not coming/showing into the mendix widget list. please if any have idea help me on that.
1 answers

Shubhab, hi!

Please check if “npm run dev” really produced an widegt mpk file. Make sure that mpk file is moved into the widget subfolder of your mendix project. In Studio Pro, synchronize your project directory (F4) and then it should definitely show up!