Project Professional link in Project Online

[csmathers2]

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?

[#2]

I should add that I can still open Project Online projects for editing by first opening Project Professional and then selecting a project.

[#3]

Try deleting the project cache folder from your pc

[#4]

Thank you. I tried that but the error remains.

[#5 · Accepted solution]

If anyone is following, uninstalling and re-installing Project Professional solved the issue.