I keep getting this whenever I try to start a new project. I followed the same steps as when I created the first project but somehow this second time it's not working. Not sure what "Duplicate values are not allowed for one or more fields" means; nothing has been duplicated. Need help to get passed this in order to start working on next project right away. Thank you.
The first thing to check is your Areas list in Account/Settings (upper right menu) and see if you have duplicate Areas there. Because when a new project is created it will copy that default list of Areas to it, so you have something to start with.
It won't allow duplicate Areas on a project as that would cause issues.
If you do have duplicate area names in Account/Settings/Areas delete one of them and then create the project.
Please let me know if this doesn't solve the issue and we'll look further into it.