When using the Virtex-4 RocketIO Wizard to generate the appropriate wrapper settings to use the RocketIO in a QPro device, I receive the following error:
"The following error occurred: Failed to generate associated files: nulljava.lang.ClassNotFoundException"
To work around this error, follow these steps:
1. In the CORE Generator project settings, change the target device to a non-QPro Virtex-4 FX device of similar size.
2. Generate the RocketIO Wizard with the appropriate settings.
3. Change the target device back to the original QPro device to generate any subsequent IP.
The outputs from the RocketIO Wizard generated for a normal Virtex-4 FX device use all of the same settings as the QPro devices and can be used without issue.