Windows 8 with 64-bit and x64-based processor, IIS8. It runs MS SQL server instances from versions 2012, 2008  and a default instance from sql2012. 

Ich have installed EPIServer 7 and 6R2 on the PC. There is no problem when I create an EPiServer7 project from the deployment center, but I get following error message during creating an EPiServer 6R2 from deplyment center:

Error - At C:\Program Files (x86)\EPiServer\Framework\6.2.267.1\Install\System Scripts\Install Site (SqlServer).ps1:211 char:32
+ echo "Assembly redirect for $file: 1.0.0.0-$fileVerssion"
+ ~~~~~~

At C:\Program Files (x86)\EPiServer\Framework\6.2.267.1\Install\System Scripts\Install Site (SqlServer).ps1:211 char:32
+ echo "Assembly redirect for $file: 1.0.0.0-$fileVerssion"
+ ~~~~~~
System.Management.Automation.ParentContainsErrorRecordException: At C:\Program Files (x86)\EPiServer\Framework\6.2.267.1\Install\System Scripts\Install Site (SqlServer).ps1:211 char:32
+ echo "Assembly redirect for $file: 1.0.0.0-$fileVerssion"
+ ~~~~~~
Variable reference is not valid. ':' was not followed by a valid variable name character. Consider using ${} to delimit the name.

Is EPiServer 6R2 incompatible with Windows8/IIS8? Is there some workaround for that. I tried to create on all three sql instances but the same error message.