PSXPCLEAN isnt part of PT 8.49
So i tried instead to migrate XMLP definitions using Application Designer from a working instance of PS CS.
But there error is still the same:
"Java Exception: java.lang.NoClassDefFoundError: com/peoplesoft/pt/xmlpublisher/PTRTFPocess or: finding class com.peoplesoft.pt.xmlpublisher.PTRTFPocess or (2,725) PSXP_ENGINE.RTFProcessor.OnExecute Name:generate XSL PCPC:239 Statement:9 Called from:PSXP_RPTDEFNMANAGE"
Notice the underlined part.
In the working instance it is "PTRTFProcess" not "PTRTFPocess"
When I look at the screenshot you provided, the error states that class PSXPXsdUtils could not be found.
This error when opening Bi Publisher reports in PIA, is documented in following:
E-BI/XMLP: Error "java.lang.NoSuchMethodError" Received When Creating Or Opening A Report Definition [ID 1077734.1]
Hope this helps.