This file may not be moved, deleted, renamed or otherwise edited in SharePoint Designer

When I tried to rename a copy from Seattle Master Page ,  I got the following error :

Server error : This file may not be moved, deleted, renamed or otherwise edited.

this-file-may-not-be-moved-deleted-renamed-or-otherwise-edited

Cause: Continue reading This file may not be moved, deleted, renamed or otherwise edited in SharePoint Designer

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The base type ‘Microsoft.Office. Project. PWA.PJBaseWebPartPage’ is not allowed for this page

After restoring a PWA Site Collection that has been restored and provisioned successfully. However, when I tried to open the PWA site, I got the following error

The base type ‘Microsoft.Office.Project.PWA.PJBaseWebPartPage’ is not allowed for this page.

the-base-type-microsoft-office-project-pwa-pjbasewebpartpage-is-not-allowed-for-this-page

Cause: Continue reading The base type ‘Microsoft.Office. Project. PWA.PJBaseWebPartPage’ is not allowed for this page