The following line needs to be change in the aspx pages in the pages library. http://intranet.old.com/sales/_catalogs/masterpage/BlankWebPartPage.aspx, Blank Web Part Page
The new url should be intranet.new.com/sites/sales ...
I checked out the file, then open the pages library in windows explorer edit the document but my changes are not being made. The SP 2013 designer doesnt even open the page, only option it gives me is open it in browser or fix the page layout.
I tried a powershell from here https://nkelkar.wordpress.com/2011/07/27/post-migration-this-page-is-not-using-a-valid-page-layout/ but it did not change the url value.
I downloaded one of the page file from pages library and fixed the url, uploaded to the pages library, checked in. But all the webparts on that page is gone.
What else can I do to fix this issue?
May be I did not put the correct url in the powershell script?