When starting the BusinessWorks process whose process starter is the Activity issued by TIBCO ActiveMatrix BusinessWorks Plug-in for SAP, the BusinessWroks application cannot be started with the error information like below:

ERROR [Framework Event Dispatcher: Equinox Container: 5035da95-4967-0019-18f5-ea7d6ca5a75c] c.t.b.thor.runtime.model.Constituent - TIBCO-BW-FRWK-600053: Failed to initialize BW Component [ComponentProcessOrdersIn-esb-in].
<CausedBy> com.tibco.bw.core.runtime.api.BWEngineException: TIBCO-BW-CORE-500232: Failed to initialize BW Component [ComponentProcessOrdersIn-esb-in], Application [bw.mc-ATHENA-ProcessOrder-SCP.application:1.0] due to activity initialization error.
<CausedBy> com.tibco.bw.core.runtime.ActivityInitException: TIBCO-BW-CORE-500408: Failed to initialize the ProcessStarter activity [ReceiveIDocFromAdapter] in process [MC-SCSCP-ATHENA-SAP.MCI.ProcessOrdersIn.ProcessOrdersIn-esb-in], module [bw.mc-ATHENA-ProcessOrder-SCP] due to unexpected activity lifecycle error.
<CausedBy> java.lang.NullPointerException

One of the reasons for this error could be the conflict of the namespace declared in the xml schema files located in the application module and its dependent shared module.

For example:
Namespace xmlns:r3 is declared in SAPSchema.xsd in the schema folder of the application module like xmlns:r3="http://www.tibco.com/xmlns/sapscalar/2015/05.
In the meantime, there is another SAPSchema.xsd file locates in the schema folder of the dependent shared module with the same namespace declaration xmlns:r3="http://www.tibco.com/xmlns/sapscalar/2015/05.
This situation will lead to such namespace conflict issue and will end up with the error mentioned above while starting the BusinessWroks application module.