I am unable to run OOPSMP in Sketchup. What am I doing wrong?
Most likely, you did not install OOPSMP (which automatically also installs the plugin) or the oopsmpprefix.txt file in the plugin directory, oopsmpext, contains the wrong paths. For each path in oopsmpprefix.txt, the plugin tries to find the executable in the subdirectories bin, bin/Debug, and bin/Release. It tries to find the libraries in the subdirectories lib/OOPSMP, lib/OOPSMP/Debug, and lib/OOPSMP/Release. If your build process puts the binary and libraries elsewhere, either change the function get_valid_path in the plugin file oopsmp_rub.rb or move your binary and libraries to the right place.