Project Professional link in Project Online

Copper Contributor

The "Open in Project Professional" Link is no longer working for me in Project Online. When I click on the link, it tells me I need a new app to open the ms-project link. Does anyone know how to re-establish the link?

4 Replies
I should add that I can still open Project Online projects for editing by first opening Project Professional and then selecting a project.
Try deleting the project cache folder from your pc
Thank you. I tried that but the error remains.
best response confirmed by csmathers2 (Copper Contributor)
If anyone is following, uninstalling and re-installing Project Professional solved the issue.