Cannot find dowhileloop in the namespace


I have updated my studio and activities, and got this error:

cannot find dowhileloop in the namespace

any idea how to fix this?


Please verify the package ‘UiPath.Core.Activities’ is updated or not.
Please provide your UiPath edition and version details

from the project folder, delete project.json file and open your project again. Your project will automatically rebuild and restore all the necessary dependencies and create a new project.json file.