Error : "SDL could not initialize! SDL_Error: dsp: No such audio device"

Question

I'm currently working on a personnal project and I have an issue with SDL_mixer or Audio

I can compile without any problems but when I try to execute the program I got this error:

"SDL could not initialize: SDL_Error: dsp: No such audio device"

I'm compiling with cmake, this is my CMakeList.txt:

cmake_minimum_required(VERSION 3.0)

set(CMAKE_BUILD_TYPE Debug)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14")
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/")

project(R-TYPE)

find_package(SDL2 REQUIRED)
find_package(SDL2_image REQUIRED)
find_package(SDL2_ttf REQUIRED)
find_package(SDL2_mixer REQUIRED)

include_directories(${SDL2_INCLUDE_DIRS} ${SDL2_IMAGE_INCLUDE_DIRS} ${SDL2_TTF_INCLUDE_DIRS} ${SDL2_MIXER_INCLUDE_DIRS})

add_executable(
    R-TYPE
    main.cpp
    Render/renderWindow.cpp
    Menu/menu.cpp
)
target_link_libraries(R-TYPE ${SDL2_LIBRARIES} ${SDL2_IMAGE_LIBRARIES} ${SDL2_TTF_LIBRARIES} ${SDL2_MIXER_LIBRARIES})

this is the function where I got the error from:

int main(int argc, char* args[])
{
    if (SDL_Init(SDL_INIT_EVERYTHING) < 0) 
    {
        std::cout << "SDL could not initialize! SDL_Error: " << SDL_GetError() << std::endl;
        return 84;
    }
    RenderWindow window("R-TYPE", 1920, 1080);

    while (gameRunning)
    {
        game(window);
    }
    window.cleanUp();
    SDL_Quit();
    TTF_Quit();
    return 0;
}

I'm on UBUNTU, how can I fix this?

I already tried to install libasound2-dev libpulse-dev but that didn't work

Answer 1

This is caused by manually building SDL2 and/or SDL2_mixer (without having all required dependencies installed).

Installing them from apt instead fixes the issue. The self-built versions had to be purged from /usr/local .