problem moving from 5.0 to 5.5. ptx: Call has wrong number of parameters

I have just installed 5.5 (Linux Centos 6, with 1 k20 and 3 2050s) and it has broken most of my projects in nsight eclipse. The code was working fine in 5.0 but now throws a large number of ptx errors.

I have imported the files from one project into a new 5.5 project and that compiled and ran fine. Is there a quicker way to resolve this issue without having to construct a new project?