Execution on the %1 Platform requires a license and no valid license key (%2) was found to enable it, so the Test %3 can't be executed on location %4. For more information, see the Troubleshooting section of the online help.
Explanation
One of the agent computers that is specified for the test run requires a license, but no license key was available for that platform.
User response
Run the Rational License Key Administrator and check for available license keys for the platform that you want. To learn more about license keys, see the installation guide.
Add the required license key or point to a server that has the required license key or run the test on a different platform.