error -18004 in TestStand 2016

[OregonGumby]

I am converting from TestStand 3.1 to 2016 and LabVIEW 8.6 to 2016.  When I try to run my sequence file, I get the following error during the module preload: LabVIEW: Unexpected file type.  Error Code: -18004, An error occured accessing the LabVIEW Run-Time Engine DLL.  Source: 'TSAPI'  I can open the LabVIEW vi with no issues and have tried re-saving it, which didn't help.  If I remove this step from sequence file, the other steps load and execute fine. 

See attached error image.

[OregonGumby · Accepted solution]

Never mind.  I found that it was pointing to some code that I had mass compiled.  For some reason, the mass compile made all the vis unreadable.  I used a backup of the files and now they don't give me an error.