pointcache extraction fails with unclear report for the user when no entities present in the publish maya set

[LiborBatek]

Is there an existing issue for this?

• I have searched the existing issues and added correct labels.

Please describe the feature you have in mind and explain what the current shortcomings are?

Once user trying to produce a publish for pointcache product and having unintentionaly empty maya publish set pointcache ayon publish will fail with generic error (not saying much). We should provide human readible message why publish didnt succeeded instead so he could revisit his scene and fix it.

Now it just gives:

Suggested implementation?

Adding human readible message informing the user he has no objects inside his publishing maya set for pointcache.

Describe alternatives you've considered:

No response