The "usual suspects" in information is missing:

- Version Xojo?
- Version Valentina?
- Exception or hard crash?
- If exception which one?
- If hard crash we need the crash log.

I've wanted to implement something similar in the next days, too, so I'm very interested in your exception/crash.

Sorry to forget.
- Version Xojo : 2019r1.1
- Version Valentina : 9.5.3
- MacOS 10.14.6
- Hard crash, no exception

I just tried with 9.8.1 and the shutdown worked fine (Xojo 2019r3 and Catalina). I used the ValentinaServerUtility project.

Ooh. Good to know. I will try this as soon as possible. Thank you.

Ok. Narrowed it down and found the origin of the problem :

You have the crash if you insert
csr = mVConnection.SqlSelect("SHOW DATABASES" (or perhaps other SQLSelect, not tested)
before mValentinaServer.Shutdown :

mVConnection = new VConnection( myHost, myUserName, myPassword, myPort, 5, mySerial )

if mVConnection <> nil then

  mVConnection.Open()

  mValentinaServer= new VServer( mVConnection )

end if

...



dim csr As VCursor

csr = mVConnection.SqlSelect("SHOW DATABASES")

csr = nil

...

if mVConnection <> nil AND mValentinaServer <> nil then

  mValentinaServer.Shutdown << this line crash my application

end if

The only workaround I see is :
before issuing vServer.Shutdown, close the connexion and recreate it.

Already reported in Mantis (#0008723), but into VALENTINA SERVER