`DCS-gRPC` is going to break next DCS release

[rurounijones]

It has been reported that ED are replacing DCS. function namespace with Sim. so any APIs we have that use DCS. will break. This includes the event stream; among other things.

All these APIs will need to be switched from DCS. to Sim. https://github.com/search?q=repo%3ADCS-gRPC%2Frust-server+DCS.+language%3ALua&type=code&l=Lua and then a release created to support the next version of DCS.

A list of DCS-gRPC <-> DCS compatibilities will need to be made as well or at least for this breaking change

[haymak3r-2025]

When will this be resolved? Hopefully this is the root cause of the error I am getting?
ERROR SCRIPTING (Main): Mission script error: [string "GRPC.load()"]:1: attempt to index global 'GRPC' (a nil value)
stack traceback:
[C]: ?
[string "GRPC.load()"]:1: in main chunk

I can't seem to find much on this.

[dutchie031]

@haymak3r-2025
There is nothing to resolve at this time. (EDIT: It should be resolved, just not "fixed" in the bug sense)
I've got a backwards compatible branch I'm working on, but right now ED made sure they themselves are backwards compatible.

DCS-gRPC 0.8.1 is working just at it was with the last update.

Feel free to tag me in the support channel in the discord: https://discord.gg/9RqyTJt
Happy to check it with you, however, the GRPC 'a nil value' can sometimes show up on mission shut down, but not cause any issues.

[haymak3r-2025]

Thanks! Will join that discord channel.

[haymak3r-2025]

@dutchie031 I think I just figured it out, actually. DCS update must have removed the dofile line in the missionscripting.lua file.. GRRR Posting this here for anybody else, as it wasn't particular clear until I saw a post in the discord support channel about this. :(

[dutchie031]

@haymak3r-2025
Indeed, every DCS update will do that sadly. Glad you got it and the discord channel helped!
Tip: DCS will create _backup. folders with all the edited files after each update.
Placing the contents of the latest back can be a quick way of redoing the changes you did before the update.