Activation of BEX Analyser in Webdynpro ALV

Hi All ,

I'm trying to use the BEX analyser report in Webdynpro ALV table standard functionalities . I have activated the BEX analyser in IMG setting . I could able to see the BEX Analyser button in Export Menu bar. But when I try to open that , I'm getting the error "Variable not set " . Should I need to do any other settings to make this work ? . Kindly help out to solve this issue .

Regards ,

Kalpana A .