Github user doanduyhai commented on the issue:
https://github.com/apache/zeppelin/pull/1369
@astroshim
> BTW how come only spark interpreter shows error message bar?
The error popup applies to all interpreters, try to add a fictive
dependency to `angular` or `shell` interpreter and you'll see also the error
popup. The error message mentions clearly the `<group>.<interpreter>` that has
the dependency issue
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