Critical Issue
Description
You might be unable to launch Nios II SBT for Eclipse on the Red Hat Linux operating system. This is an issue with the version of XULRunner in Eclipse 3.4. The issue is resolved in XULRunner 1.9.1, which is available with Eclipse 3.5.
Resolution
Upgrade XULRunner to a newer version. To determine what version of XULRunner you have, type the following command at the command prompt:
xulrunner -vr
To upgrade XULRunner using the yum software package manager, type the following command:
sudo yum update xulrunnerr