It says that variable is not defined but it is.

[kestus0756]

Hello, everyone. I'm back with another problem which is about keybindings. So, the problem is that it says that variable is not defined but it actually is. So, here's the error:

___________________________________________
############################################################################################
FATAL ERROR in
action number 1
of Create Event
for object obj_key_up:

global variable key_up(100010, -2147483648) not set before reading it.
 at gml_Object_obj_key_up_CreateEvent_1 (line 1) - key = global.key_up;
############################################################################################

I have no idea what's the problem. Any help would be appreciated a lot. (I get a lot of errors because I'm not a professional gamemaker user, only have been using it for like a year, I hope you understand that.)

 

[Ramaraunt]

What creates the variable initially? Check your instance order. Sorry if you already did, just you didn't give much info.

 

[Yal]

You're accessing the variable in the first line of a create event, so I guess you define the global variables in a Game Start event... those are run AFTER create events for some reason, a lot of people get errors about that. I'd personally recommend setting up all global variables in a temporary titlescreen room as early as possible in development so you KNOW they're around, and then have pressing enter go to the actual game.

 

[kestus0756]

What creates the variable initially? Check your instance order. Sorry if you already did, just you didn't give much info.

Well, I tried putting global.key_up = 0 in Game Start event like Yal said but it doesn't work, still gives the same error.

 

[Yal]

The game start event is run after create events. So you can't access anything a Game Start event initializes in the same room.

 

[stainedofmind]

... for some reason...

Because the instance needs to exist before it can run any code?

 

[Yal]

Because the instance needs to exist before it can run any code?

That's actually a pretty good reason. Can't believe I didn't realize that.... It's easy to forget Game Start events are actually run from inside an object, I guess...? x3

 

[kestus0756]

That's actually a pretty good reason. Can't believe I didn't realize that.... It's easy to forget Game Start events are actually run from inside an object, I guess...? x3

I figured a way to fix it, thanks anyways.