OK, I figure it out!
"EXTERNAL ARRAY oSeries" work ONLY if there is an array named oSeries somewhere in the project's files.

The prg was a class definition file, I add DIMENSION oSeries[1] at the top of the prg, before the define class, and it works now.

Thanks for the kick in the right direction :-)



>Gérald, that is strange. For me, adding the EXTERNAL ARRAY statement has always done its magic. And I know how frustrating it can be to figure out ways to make spurious 'error' messages go away so that real errors get noticed right away if they pop up ...
>
>Btw, could you rig up some compilable repro code that fails despite EXTE ARRA after LOCAL? I just did a quick test with the code you posted and EXTE ARRA worked like a charm.