Hi,
I had this issue on WIndows 7.
Don't remember if it worked by just running the installation of CMS6 as admin and then run Deplyment Center as Admin.

This is what I did that does for sure work:

1. Turn of UAC
2. Repair the CMS 6 installation
3. Run the upgrade again.

Again this was on Windows 7.

Regards,
Morten

Hi Morten,

Thanks for replying and your sugestions.

I eventually tracked the problem down to the fact that the bin folder within the "6.0.530.0" (C:\Program Files\EPiServer\CMS\6.0.530.0\bin) folder, doesn't actually contain all the required DLLs for EPiServer to work correctly.

I've written about it here for others in future: http://www.jamie-dixon.co.uk/episerver/upgrading-episerver-to-version-6/

Thanks again for your help.

Jamie

Hello folks,

We noticed that some of the newer version assemblies added as a reference doesn't get copied in the project bin folder after compilation instead they are referred from machine GAC. We uninstalled EPiServer CMS 6 and then re-referred these assemblies from common folder. We explicitly set the CopyLocal property to True for all the new assemblies so that the referred assembly gets copied into the bin once the build is successful. This solves our problem.

We tried this on following environment - Windows XP SP3, IIS 5.1, Visual Studio 2008

Regards,

Nitin