My department head and I just installed Sharepoint 2013 and Project 2013. We're fairly new to both. I created a Project Web App, and made a project. I was able to add a few tasks to this project.. at first.
Now: I can click Edit on the Project Details Page, check out the project, make changes to the "Project Details" and successfully save. But if I go to "Schedule", I receive this error message:
Your session became invalid because this project was also opened in another browser.
Even for new projects.
I've tried clearing my cache, restarting the computer, trying on a different computer, and doing all that after making sure all projects are forcibly checked in. Googling that error message brings up three total results, all from the same guy dealing with a different cause.
I'm at a loss. Any ideas?