[claudiobosticco]

Yes, it could. But for now I can't say what is the root cause.
I've only 'discovered' that it shows only when opening the developer console after a refresh, ie it doesn't show after a refresh with the console already opened.
Maybe an extra char in a dataSource xml file? Is it available a tool similar to the JSSyntaxScanner for xml files?

SmartClient Version: SNAPSHOT_v11.1d_2016-11-07/Enterprise Deployment (built 2016-11-07)
using the latest build, the error has vanished