I just installed Web Access 10.1 and am attempting to scan using Universal Capture from a workstation.  When the Scan Source comes up and I choose Universal Capture I get the following error Exception has been thrown by the target of an invocation. When I look at the details it says "Value cannot be null."  I saw another article with this error message that was for version 9.x I followed that by deleting 

C:\Program Files (x86)\Common Files\Laserfiche\9.1\BPImageWrapper91.dll
C:\Program Files (x86)\Common Files\Laserfiche\Batch Processor\BPInterfacesClient.dll
C:\Program Files (x86)\Common Files\Laserfiche\Batch Processor\BPObjectsClient91.dll
C:\Program Files (x86)\Common Files\Laserfiche\Batch Processor\BPOCRClientWrapper90.dll
C:\Program Files (x86)\Common Files\Laserfiche\Batch Processor\BPPageFixClient91.dll

and repairing the installation but that didn't help.

Has anyone else run into this?

Thanks,
Sandy