Hello,
I had faced this issue while running a performance test. All the Vusers 'ERRORED OUT' because there was no paramter file found for that respective VUGEN script. I am sure that, I've uploaded the zipped script with only run time files.
I had tested this issue by dowloading the zipped file from PC to the local drive and I figured that there was no parameter file.
I had run a scenraio with 7 different Vugen scripts, all scripts had similar issue, they could not fnd the parameter files in the PC directory.
FYI:
Loadrunner Version : 11.52
Performance Center : 11.52