Enterprise Administration > Windchill ESI > Administering Windchill ESI in an SAP Environment > Guidelines for Monitoring, Diagnosing, and Resolving Problems > Resolving Problems > Techniques for Resolving Problems > Resolving Solaris Platforms Issues > Environment Variable Issues
  
Environment Variable Issues
On various Unix platforms certain TIBCO components fail to launch because of unresolved library dependencies.
If there is any *.sh or *.csh files present in the bin directory of that particular component, they should be executed and then the 'ldd' command can be used to identify unresolved library dependencies.
All required library paths should be added to the tibco.env.CUSTOM_EXT_PREPEND variable found in the *.tra file.