What version of the NI-RIO driver do you have?
Attached is a chart with the different compatibilities of the RIO driver.
NI-RIO and LabVIEW Version Compatibility
http://digital.ni.com/public.nsf/allkb/577CC9A7DCFC73DF8625738400116CC3?OpenDocument
Is this a 64-bit machine? Also, the minimum version of LabVIEW that will work with the 9075 is LabVIEW 2010SP1. You can verify if you have this version by going into Measurement & Austomation Explorer and expanding software. If you do not have LabVIEW 2010SP1, you will need either the platform DVDs for 2010 SP1 or you can download the content from www.NI.com/src.
You will also want to verify that you have the 2010SP1 FPGA module and 2010SP1 RT module.
Also, does this issue occur with all FPGA VIs that you try to compile or only the one that you are currently working on?
You can check by doing two things:
1. Try to compile a blank FPGA VI (i.e. nothing on the block diagram or front panel)
2. Try to compile an FPGA VI from one of the example LabVIEW projects
Please post back if one of these troubleshooting steps resolved your issue or if you're still having problems.
Jordan
