SAP MDG · UTILITIES
How do I fix the MDG UIBB 500 Internal Server Error: XSLT: No valid XML source after changing feeder class parameters?
This error usually occurs after changing a feeder class or its parameters, which leaves the UIBB configuration inconsistent. Debug CL_BS_MORPH_CONFIG_SUPERVISOR=>IF_BS_MORPH_CONFIG_SUPERVISOR~VALIDATE_CONFIGURATION, skip the failing CALL TRANSFORMATION line, open the UIBB, correct the fields or parameters, and save.
This error usually occurs after changing a feeder class or its parameters, which leaves the UIBB configuration inconsistent. Debug CL_BS_MORPH_CONFIG_SUPERVISOR=>IF_BS_MORPH_CONFIG_SUPERVISOR~VALIDATE_CONFIGURATION, skip the failing CALL TRANSFORMATION line, open the UIBB, correct the fields or parameters, and save.
This MDG UIBB error typically appears after a feeder class or feeder class parameter change. The configuration can become inconsistent, leading to `500 Internal Server Error` and `XSLT: No valid XML source`; ST22 may also show the runtime error. The practical workaround is to debug `CL_BS_MORPH_CONFIG_SUPERVISOR` in method `IF_BS_MORPH_CONFIG_SUPERVISOR~VALIDATE_CONFIGURATION`, skip the transformation line once, open the UIBB, and then correct and save the configuration.
Process flow
- Reproduce the UIBB open error.
- Check ST22 for the runtime dump.
- Debug CL_BS_MORPH_CONFIG_SUPERVISOR=>IF_BS_MORPH_CONFIG_SUPERVISOR~VALIDATE_CONFIGURATION.
- At the CALL TRANSFORMATION line, skip once with F12 / Go to Statement.
- Open the UIBB after bypassing the failed conversion.
- Correct the feeder class or feeder class parameters and any mismatched fields.
- Save the UIBB configuration.
- If UC_OBJECTS_NOT_CONVERTIBLE appears, check the type mismatch between the source and target structures.
The remaining configuration, implementation details, and testing guidance continue from this answer more…
Related questions and keywords
Alternative questions
- Why does MDG show 500 Internal Server Error with XSLT: No valid XML source?
- How do I open a UIBB again after changing the feeder class or feeder class parameters?
- What causes UC_OBJECTS_NOT_CONVERTIBLE in an MDG UIBB?
Possible questions
- How do I fix the MDG UIBB 500 Internal Server Error: XSLT: No valid XML source after changing feeder class parameters?
- Why does MDG show 500 Internal Server Error with XSLT: No valid XML source?
- How do I open a UIBB again after changing the feeder class or feeder class parameters?
- What causes UC_OBJECTS_NOT_CONVERTIBLE in an MDG UIBB?
- How do I debug CL_BS_MORPH_CONFIG_SUPERVISOR~IF_BS_MORPH_CONFIG_SUPERVISOR~VALIDATE_CONFIGURATION?