Roon will not start after installation macOS Catalina

Support
1

Core Machine (Operating system/System info/Roon build number)
Roon Version: 1.7 (build 667) stable
OS Version: Mac OS X 10.15.7
Hardware Version: MacBookPro8,1
Mono Version: 6.10.0.106 (2019-12/77769615db1)

Network Details (Including networking gear model/manufacturer and if on WiFi/Ethernet)

Audio Devices (Specify what device you’re using and its connection type - USB/HDMI/etc.)
iFi nano DSD

Description Of Issue
Fresh install of the latest version gets to the splash screen and dies in flames few seconds later. Funny thing is that it was working fine for a day or so, I guess some update was pushed that killed it?

Relevant piece of the log:

12/01 13:12:42 Critical: while dispatching events: System.NullReferenceException: Object reference not set to an instance of an object
  at Sooloos.Client.RootBase.<Init>b__94_2 (System.IDataSource newList) [0x0009e] in <f7934b736dec4238911f35300e5031c5>:0 
  at Sooloos.Broker.SharedList`2[T,THREAD].<OnChanged>b__32_0 (System.DataSourceChangedDelegate h) [0x00000] in <3deaa7333e174f27bbd18500ac7eed87>:0 
  at Sooloos.Concurrency.EventHandler`1[HANDLER].Dispatch (System.Object o_cb_fireone) [0x00000] in <15fc524b6b084aa2b2d9c62a8934a194>:0 
  at Sooloos.Concurrency.EventHandlers.Dispatch (System.Collections.Generic.List`1[T] evs) [0x00031] in <15fc524b6b084aa2b2d9c62a8934a194>:0 
  at Sooloos.Concurrency.SharedState`1[THREAD].FlushEvents () [0x00029] in <15fc524b6b084aa2b2d9c62a8934a194>:0
2

Hi @YBilas,

Would you kindly use the directions found here and send us over a set of logs using a shared Dropbox link? Thanks!

3

https://file.io/6ghImOOICE57

4

I think I found the culprit. The MacOS instance was trying to connect to the core running on linux server and failing. The moment I took the core offline I was able to start the Roon UI w/o issues. Something you guys may want to look into, just to handle this situation gracefully and not let it crash without any explanation.

5

Thanks for the update, @YBilas. I’ll be sure to pass this along to the team. I’m glad you’re up and running now!

6

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