[flext] evoke "... couldn't create" Pd-error

[Patrick Gampp]

Hi all,
I wrote an flext external which needs creation arguments.

In the class constructor, for wrong creation arguments, I want the 
external not to be created and deliver the pd-console message:

"myFlextExternal
... couldn't create"

I already tried
error("myFlextExternal \
        ... couldn't create");
But the external is anyway loaded into Pd.

Does anyone know, how to evoke this pd message and abort the loading of 
myFlextExternal?

Best,
Patrick