Invalid expression

[kiansin]

Hi !

I got this error "invalid expression". 

And I found out there are two lines which make my app has occurred error as below : 

Kindly seek for help.

Thanks in advance ! !

Regards

KianSin

[canerkan]

Hi Kiansin,

you need to make aggregations like Sum(), Max(), Min() etc. in order to use "Group by"  otherwise this error message will appear.

Regards

Can