Root cause or fix local shortcoming leading to FS0988 warnings

[bartelink]

For this repo, a central tenet has always been ./build should produce a clean build with no warnings

Atm it says:
warning FS0988: Main module of program is empty: nothing will happen when it is run

I'm OK with it remaining in the short term if there is a tooling fix in the works

[bartelink]

'Fixed' with 🙈 on cosmos branch in 86bdb41
@enricosada I don't like having to add an entrypoint (esp if I dont have to in C#) for a test assembly. I tried, but there's no clean way without adding an extra file that needs to be last in the order.
a) Am I doing it wrong
b) If I'm not, surely there should be a ticket about doing this properly somewhere (the trail runs dead here for me)

[enricosada]

should be already fixed in .net core sdk.
for test projects, the main will be automatically generated, if needed, like c#.
i'll check why isnt the case here

[bartelink]

ok - the offending project is only on the cosmos branch, but I thought it was happening in the others on master too (and that does not have that commit)

[bartelink]

(As suggested by Enrico, pinning to 500+ removes this, so removed the hiding and all is well)