"Access via 'NULL' object reference not possible" error in web dynpro.

[Former Member]

Hi Guru's

When i try to launch the web dynpro application in portal I am getting the below error. Can anyone please guide me? As I am stuck up in this issue from past 2 days.

Error while processing your query

What has happened?

The URL call http://<system ID>:8050/sap/bc/webdynpro/sap/ASR_PROCESS_EXECUTE_FPM was terminated because of an error.

Note

The following error text was processed in system <sap system> : Access via 'NULL' object reference not possible.

The error occurred on the application server saphes_<system>_<ID> and in the work process 19 .

The termination type was: RABAX_STATE

The ABAP call stack was:

Method: WDDOMODIFYVIEW of program /1BCWDY/07VQCMLFZVFAN5H4QXZP==CP

Method: IF_WDR_VIEW_DELEGATE~WD_DO_MODIFY_VIEW of program /1BCWDY/07VQCMLFZVFAN5H4QXZP==CP

Method: DO_MODIFY_VIEW of program CL_WDR_DELEGATING_VIEW========CP

Method: MODIFY_VIEW of program CL_WDR_VIEW===================CP

Method: DO_MODIFY_VIEW of program CL_WDR_CLIENT_COMPONENT=======CP

Method: DO_MODIFY_VIEW of program CL_WDR_CLIENT_COMPONENT=======CP

Method: DO_MODIFY_VIEW of program CL_WDR_CLIENT_COMPONENT=======CP

Method: DO_MODIFY_VIEW of program CL_WDR_CLIENT_COMPONENT=======CP

Method: DO_MODIFY_VIEW of program CL_WDR_WINDOW_PHASE_MODEL=====CP

Method: PROCESS_REQUEST of program CL_WDR_WINDOW_PHASE_MODEL=====CP

[Former Member]

Hi Prabhu1985,

I am new to this webdynpro concept. Could you just guide me from where should i need to check the cardinality and also from where should i need to copy the code?

P.S: Basically I am using Standard webdynpro component i.e, FPM_GAF_COMPONENT to launch it into the portal.

Regards,

Pramod.

[Former Member]

there is a problem in your code.please paste the code and your conext cardinality.you might have used get_attributes/get_static_attributes and have written select statement.