{This project has inactive enterprise resources with remaining work.}Inactive resources can't report status so their remaining work should be reassigned to active resources.
Here is the list of inactive enterprise resources with remaining work in your project:
^1
This project could not be synchronized with SharePoint because the linked tasks list (UID: {0}) could not be found. Verify ...
This project could not be synchronized with SharePoint because the SharePoint List could not be accessed. Verify that the ...
This project has been opened in Read-Only mode. To edit, either re-open the project in edit mode or select an alternate project ...
This project has been updated in another session and the current data may no longer be valid. Refresh the page to see the ...
This project has inactive enterprise resources with remaining work.}Inactive resources can't report status so their remaining ...
This project is attempting to use web pages from the site to display its Project Guide. You have not identified this site ...
This project is no longer checked out to you on the Project Web App.} To save as a different project, click OK and then Save ...
This project is on Project Web App.}To open it, you'll need to close and then restart Project using that Project Web App ...
This project may contain actual work values currently out of sync with actual values from timesheets. Replacing a resource ...