Resolution:
Title:
We deployed an existing BW service and got the following error in command line:

java.lang.NoClassDefFoundError: com/tibco/sdk/MServiceState
        at com.tibco.pe.PEMain.a(PEMain.java:196)
        at com.tibco.pe.PEMain.<init>(PEMain.java:184)
        at com.tibco.pe.PEMain.main(PEMain.java:122)

How can I fix this issue?

Resolution:
The class "com/tibco/sdk/MServiceState" is present in <TRA_HOME>\lib\TIBCOrt.jar
Please ensure that your TRA installation contains this jar file.
Also please make sure the jar file is in the classpath of bw engine.