Report Creation in Concorde

Firstly, I am very new to Concorde and XAL . Presently I am triying to replicate a report from one schema into another manually. At one point  in the Field script (of the body of report) when i enter "&LocalInitDate//Tablename1[Index,Tablename2.Field].Dato" and try to submit (F3) ... it throws the error :

 -->  *** Error:  9, This variable has not been declared

Can anyone please help me regarding this.