After several attempts to install SQL Server 2012 on Windows 7, I was getting the following error.
“SQL Server Setup has encountered the following error: Value cannot be null. Parameter name: doc.”
After 4 retries with different options I finally tried running setup.exe “As Administrator” based on suggestions that I found when searching on the error. Still no luck.
Next I found an article suggesting a complete uninstall of SQL Server, and re-install. Trying that now. I will post more if I figure this one out.
Update. After a complete un-install deleting of all the SQL Server 2012 directories. I started the install again and is works great.
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Hey Steve – I just had the same problem trying to install SQL Server 2008 on Win 7…got same error message. After several tries, I found your solution, did as you said (uninstall everything AND remove folders) and sudden joy!
Thanks much!
kevin
hi,log off every user on your computer and log in as administrator,it work fine!