Mismatched Version String for imgui.cpp when try to run compiled example of implot_demos

[glanzkaiser]

Version/Branch of Dear ImGui:

Version 1.91.9b, Release

Back-ends:

imgui_impl_glfw.cpp + imgui_impl_opengl3.cpp

Compiler, OS:

Linux + GCC

Full config/build information:

No response

Details:

My Issue/Question:

I was trying to run an example from 1st demo of implot_demos

The compilation is successful. But the problem is when I run the executable it closes the window in an instant and shows this error message: (attached on screenshot).

Btw, in /usr/include/imgui (the default path for include files in Linux OS) I put the include files of imgui from older version for learning Box2D v 2.4.1, maybe this is the case. I know that if I replace the include files here, then I could not use my Box2D anymore. But I did try (create the backup and replace the include files with the newest imgui that I use for implot_demos), but this is still not working.

Is there any solution here?

Screenshots/Video:

Minimal, Complete and Verifiable Example code:

#include "App.h"

struct ImPlotDemo : App {
    using App::App;
    void Update() override {
        ImPlot::ShowDemoWindow();   
    }
};

int main(int argc, char const *argv[])
{
    ImPlotDemo app("ImPlot Demo",1920,1080,argc,argv);
    app.Run();

    return 0;
}

This is a portion of the Makefile that I use to compile, maybe it can be of used to diagnose my problem here (the libraries are all static libapp.a, libimgui.a, libimnodes.a, libimplot.a):

EXE = main
IMGUI_DIR = ../..
SOURCES = main.cpp
SOURCES += $(IMGUI_DIR)/imgui.cpp $(IMGUI_DIR)/imgui_demo.cpp $(IMGUI_DIR)/imgui_draw.cpp $(IMGUI_DIR)/imgui_tables.cpp $(IMGUI_DIR)/imgui_widgets.cpp
SOURCES += $(IMGUI_DIR)/backends/imgui_impl_glfw.cpp $(IMGUI_DIR)/backends/imgui_impl_opengl3.cpp
SOURCES += $(IMGUI_DIR)/implot.cpp $(IMGUI_DIR)/implot_demo.cpp $(IMGUI_DIR)/implot_items.cpp
OBJS = $(addsuffix .o, $(basename $(notdir $(SOURCES))))
UNAME_S := $(shell uname -s)
LINUX_GL_LIBS = -lGL

CXXFLAGS = -std=c++11 -I$(IMGUI_DIR) -I$(IMGUI_DIR)/backends
CXXFLAGS += -g -Wall -Wformat
LIBS = ../../dependencies/glad.c -L../../dependencies/ -lapp -limgui -limnodes -limplot

....

[ocornut]

It means that header version is not matching the compiled/linked version so it’s a build issue on your end.

[glanzkaiser]

I have made it work just now,

There are some error in Linux because some codes are designated for Windows and also need library imm32 in CMakeLists.txt that I don't know what that is, so I just delete the need for that library.

Thanks a lot.

The spectogram demos works nice. Imgui is amazing.