Tomcat for the OneClick WebApp will not start when running $SPECROOT/webtomcat/bin/startWebTomcat.sh .
The following error is seen in the $SPECROOT/webtomcat/logs/catalina.out file:
catalina.sh: line 464: xvfb-run: command not found
Missing the ‘X virtual frame buffer’ (Xvfb) for Linux
Spectrum OneClick WebApp
As noted in the "Steps to Run OneClick WebApp on Linux" section of the documentation, the ‘X virtual frame buffer’ (Xvfb) is a prerequisite.