Problem in ImGui::NewFrame CRASH when calls internal GetDefaultFont()

[RodrigoBrombatti]

Version: 1.89.2
Branch: master

Back-ends: custom (GLFW3 + GLAD)
Compiler: Clang
Operating System: MacOS

Trying to follow The Chermo game engine tutorial but I can't make ImGui work

Im trying to follow the chermo tutorial, I noticed that he was using old version of ImGui.
So in the newer I get I need to setIMGUI_IMPL_OPENGL_LOADER_CUSTOM to load my custom GL loader with Glad etc
Im building ImGui and I can see the GLFW OpenGL3 examples working well
So, I think I did every initial setup correctly and Im adding ImGui to my personal engine lib with Add_Subdirectory and linking that correctly. Im about 4 days now trying to fix it or something I did wrong.

I follow every step in Internal new frame and I see ImGui IO getting every info correctly, until this reaches GetDefaultFont() from imgui_internal.h

I got this:
EXC_BAD_ACCESS (code=1, address=0x68)

Everyone tells me is something bad in my code but I review everithing like many many times and im going crazy
Maybe is a newbie error im doing here but im completely stuck so help me please

My Repo Complete:
https://github.com/RodrigoBrombatti/NuloEngine

GL Loader: (just like copy and paste of backends/imgui_impl_opengl3.h and .cpp with glad added)
https://github.com/RodrigoBrombatti/NuloEngine/blob/master/Nulo/src/Nulo/Platform/OpenGL/ImGuiOpenGLRenderer.cpp

Trying to load:
https://github.com/RodrigoBrombatti/NuloEngine/blob/master/Nulo/src/Nulo/ImGui/ImGuiLayer.cpp

What I did to build ImGui:
1 - add submodule
2 - got this CMakeLists.txt for Build image
https://gist.github.com/rokups/f771217b2d530d170db5cb1e08e9a8f4
1 - mkdir build
2 - cmake .. inside imgui with CMakeLists.txt
3 - cmake --build . inside vendor/imgui/build
4 - target my engine lib with imgui and include_directories(vendor/imgui/)

also, my principal CMakeLists.txt
https://github.com/RodrigoBrombatti/NuloEngine/blob/master/CMakeLists.txt

Im using:
Apple MacBook M1 Pro with Apple Silicon (ARM64)

If someone can help me because I don't know what to do anymore

Thanks and have a great new year

[PathogenDavid]

Your repo is private so we can't see it.

I suspect you're calling something in the wrong order. Crashes there implies to me that you might be calling ImGui::NewFrame() before the _NewFrame functions for the backends. (IE: ImGui_ImplOpenGL3_NewFrame/ImGui_ImplGlfw_NewFrame.)

Ensure you're running a debug build. You shouldn't be able to get this far without an assert going bang and giving you some info about what you're doing wrong.

Carefully compare your code with example_glfw_opengl3 and ensure you're doing things in logically the same order.

It'd be a good idea to run both the example and your code at the same time in a debugger and step through each one's initialization one at function at a time to ensure things are happening in the same order. (Or put breakpoints on relevant function calls in each and make sure they're hit in the same order.)

So in the newer I get I need to setIMGUI_IMPL_OPENGL_LOADER_CUSTOM to load my custom GL loader with Glad etc

Ideally you should just let the backend use the embedded loader. IE: Don't use IMGUI_IMPL_OPENGL_LOADER_CUSTOM.

IMGUI_IMPL_OPENGL_LOADER_CUSTOM is only meant for single-file unity builds.

You can still use Glad for your code.

[RodrigoBrombatti]

Sorry about that, I found the solution
Just my fault messing with static and dynamic libs

[PathogenDavid]

No worries, glad you were able to figure it out!

[RodrigoBrombatti]

Solved

[EinOnly]

How to solve it?