The report definition is not valid

Question

I have converted an .rdlc rerort from SSRS 2005 to SSRS 2008. Now when I am going to build that project I have got error.

The report defi

Answer 1

I'm not entirely sure why @user2702793's answer got down voted, because that suggestion just saved my career:

Consider

1. Creating a blank SSRS 2008 report and copying all the content out of the SSRS 2005 report into the new one
2. copy the name of the SSRS 2005 report if you want to keep the name of the report intact
3. delete that report (SSRS 2005 one you just copied the content from into your new report)
4. rename your new SSRS 2008 (with the deleted SSRS 2005 report's content in it) and paste the report name in.

I had a very similar situation mentioned above except I wanted to retain my SSRS old versions instead of upgrading it. Which basically had me making a copy of the old version, copying the content out of the accidentally upgraded report and pasting it into the copied report, and copying the name of the upgraded report, deleting it and renaming my copied report to retain the same name of the report that just got deleted.

Edit: Of course in my case I also wanted changes done to the old report which was all in the upgraded report hence my lengthy work around to keep from losing my current changes.