"No service implementation available" with adhoc template in 1.3

Hello

I'm trying to use the adhoc template available since 1.3, using "X" global variables for connection name, system, query name and query type ...

And I systematically get the error message :

"No service implementation available"

query could not be loaded

I know that some have faced this issue and that it's known from many specialists here...

- I've checked that everything is OK when I don't use the variables and execute the adhoc template app as a standard one (incl. the DSource, everything works well).

- I've also checked that the olap connection language was not saved (it solved most of the cases described in the community)

But I still have it.

Any idea?

Thanks a lot in advance

Best Regards