Error in loading "ws.goulding.script-library.mergjson"

[Sannyasin Brahmanathaswami]

I did my first attempt to build a standalone of Mobile for Android in 9.0.2

I got this unusual never-saw-it-before message:

Remote: stack "ws.goulding.script-library.mergjson": execution error at line n/a (External handler execution error: could not decode JSON: unexpected token near end of file) near "could not decode JSON: unexpected token near end of file"

The JSON files that load on init are valid JSON files

doesn’t happen on desktop… How do I debug this? 

BR