"No service implementation available" with adhoc template in 1.3

Question

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

Answer 1

Hello Karol
Thanks a lot for your answer.
In fact it all has to do with events order : datasource manually assigned in designer will be initialized before X parameters evaluation, so if this datasource is an inexisting one, I'll get an error message before X parameters evaluation.
Understood!
It's not a problem to manually assign the datasource in designer.
By the way, if you refer to Michael Howles "making-adhoc-analysis-template-images-and-css-work" document, you have to manually set at least the datasource connection, whether or not it is replaced at run time by XSYSTEM parameter, to make the template work on BI platform.
So it works with a manually assigned query, as soon as this query exists : OK it's useless in case of X parameters usage, as this query will be initialized and immediately replaced by the one defined in the XQUERY parameter, but it works. It was not working for me (no effect from X parameters) because the manually assigned query was wrong and execution was some kinda stopped after the error message.
Question)
Finally, this template doesn't work for me (same error message : no service implementation available) if I use the system alias in the XSYSTEM parameter (for example "B73"). It works only if I use the cuid of the OLAP connection defined in the CMC (...&XSYSTEM=cuid:AUoUxgljSKNFkFeselrOJ1Q&XQUERY=DSTUDIO_DASH_4&XTYPE=BW). When I look at the adhoc template start up script :
DS_1.assignDataSource(XSYSTEM, DataSourceType.QUERY, XQUERY);
the assigndatasource method first parameter is supposed to be set with that kind of cuid : even if the contextual help describes a "Q99" parameter as an example - i.e. the connection name - in fact it doesn't accept this "name" format ; furthermore, using the wizard leads to a cuid anyway!
DS_1.assignDataSource("cuid:AUoUxgljSKNFkFeselrOJ1Q", DataSourceType.QUERY, "DSTUDIO_DASH_4");
I guess it's not normal, because both contextual help, documentation and tutorial (where "HBW" is used as XSYSTEM parameter) would then be wrong, and because this template would not be user friendly at all, if cuid were mandatory, as no one knows them by heart.
So where did I go wrong? Do you have any idea why I can't use connection alias ?
Thanks in advance,
Regards
Rémi
DS 1.3 SP0, BI Platform