# Error with doc **URL:** \ **Category:** mediasoup libraries\ **Created:** [December 24, 2021, 11:47am UTC](https://mediasoup.discourse.group/t/error-with-doc/3758 "2021-12-24T11:47:58Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![kswangxing](https://yyz2.discourse-cdn.com/free1/user_avatar/mediasoup.discourse.group/kswangxing/32/1413_2.png) [@kswangxing](https://mediasoup.discourse.group/u/kswangxing)\ **Post date:** [December 24, 2021, 11:47am UTC](https://mediasoup.discourse.group/t/error-with-doc/3758/1 "2021-12-24T11:47:58Z")
the newest mediasoup-broadcaster-demo need webrtc m94. So I follow [mediasoup :: Installation](https://mediasoup.org/documentation/v3/libmediasoupclient/installation/#build-examples)。I got some error。 ```auto make: Entering directory '/home/bizconf/develop/mediasoup-broadcaster-demo/build' make[1]: Entering directory '/home/bizconf/develop/mediasoup-broadcaster-demo/build' make[2]: Entering directory '/home/bizconf/develop/mediasoup-broadcaster-demo/build' make[2]: Leaving directory '/home/bizconf/develop/mediasoup-broadcaster-demo/build' [9%] Built target webrtc_broadcaster make[2]: Entering directory '/home/bizconf/develop/mediasoup-broadcaster-demo/build' make[2]: Leaving directory '/home/bizconf/develop/mediasoup-broadcaster-demo/build' [9%] Built target sdptransform make[2]: Entering directory '/home/bizconf/develop/mediasoup-broadcaster-demo/build' make[2]: Leaving directory '/home/bizconf/develop/mediasoup-broadcaster-demo/build' [19%] Built target mediasoupclient make[2]: Entering directory '/home/bizconf/develop/mediasoup-broadcaster-demo/build' make[2]: Leaving directory '/home/bizconf/develop/mediasoup-broadcaster-demo/build' [76%] Built target libcurl make[2]: Entering directory '/home/bizconf/develop/mediasoup-broadcaster-demo/build' make[2]: Leaving directory '/home/bizconf/develop/mediasoup-broadcaster-demo/build' [80%] Built target cpr make[2]: Entering directory '/home/bizconf/develop/mediasoup-broadcaster-demo/build' make[2]: Leaving directory '/home/bizconf/develop/mediasoup-broadcaster-demo/build' make[2]: Entering directory '/home/bizconf/develop/mediasoup-broadcaster-demo/build' [80%] Linking CXX executable broadcaster /usr/bin/ld: /home/bizconf/develop/webrtc/webrtc-checkout/src/out/m94/obj/libwebrtc.a(audio_device_alsa_linux.o): in function `webrtc::AudioDeviceLinuxALSA::Terminate() [clone .part.0]': audio_device_alsa_linux.cc:(.text._ZN6webrtc20AudioDeviceLinuxALSA9TerminateEv.part.0+0x51): undefined reference to `XCloseDisplay' /usr/bin/ld: /home/bizconf/develop/webrtc/webrtc-checkout/src/out/m94/obj/libwebrtc.a(audio_device_alsa_linux.o): in function `webrtc::AudioDeviceLinuxALSA::KeyPressed() const': audio_device_alsa_linux.cc:(.text._ZNK6webrtc20AudioDeviceLinuxALSA10KeyPressedEv+0x35): undefined reference to `XQueryKeymap' /usr/bin/ld: /home/bizconf/develop/webrtc/webrtc-checkout/src/out/m94/obj/libwebrtc.a(audio_device_alsa_linux.o): in function `webrtc::AudioDeviceLinuxALSA::Init()': audio_device_alsa_linux.cc:(.text._ZN6webrtc20AudioDeviceLinuxALSA4InitEv+0x53): undefined reference to `XOpenDisplay' /usr/bin/ld: /home/bizconf/develop/webrtc/webrtc-checkout/src/out/m94/obj/libwebrtc.a(audio_device_pulse_linux.o): in function `webrtc::AudioDeviceLinuxPulse::KeyPressed() const': audio_device_pulse_linux.cc:(.text._ZNK6webrtc21AudioDeviceLinuxPulse10KeyPressedEv+0x35): undefined reference to `XQueryKeymap' /usr/bin/ld: /home/bizconf/develop/webrtc/webrtc-checkout/src/out/m94/obj/libwebrtc.a(audio_device_pulse_linux.o): in function `webrtc::AudioDeviceLinuxPulse::Terminate() [clone .part.0]': audio_device_pulse_linux.cc:(.text._ZN6webrtc21AudioDeviceLinuxPulse9TerminateEv.part.0+0x7d): undefined reference to `XCloseDisplay' /usr/bin/ld: /home/bizconf/develop/webrtc/webrtc-checkout/src/out/m94/obj/libwebrtc.a(audio_device_pulse_linux.o): in function `webrtc::AudioDeviceLinuxPulse::Init()': audio_device_pulse_linux.cc:(.text._ZN6webrtc21AudioDeviceLinuxPulse4InitEv+0x63): undefined reference to `XOpenDisplay' /usr/bin/ld: /home/bizconf/develop/webrtc/webrtc-checkout/src/out/m94/obj/libwebrtc.a(message_pump_glib.o): in function `base::MessagePumpGlib::FdWatchController::StopWatchingFileDescriptor()': message_pump_glib.cc:(.text._ZN4base15MessagePumpGlib17FdWatchController26StopWatchingFileDescriptorEv+0x1c): undefined reference to `g_source_destroy' /usr/bin/ld: message_pump_glib.cc:(.text._ZN4base15MessagePumpGlib17FdWatchController26StopWatchingFileDescriptorEv+0x25): undefined reference to `g_source_unref' /usr/bin/ld: /home/bizconf/develop/webrtc/webrtc-checkout/src/out/m94/obj/libwebrtc.a(message_pump_glib.o): in function `base::MessagePumpGlib::~MessagePumpGlib()': message_pump_glib.cc:(.text._ZN4base15MessagePumpGlibD2Ev+0x20): undefined reference to `g_source_destroy' /usr/bin/ld: message_pump_glib.cc:(.text._ZN4base15MessagePumpGlibD2Ev+0x2a): undefined reference to `g_source_unref' /usr/bin/ld: message_pump_glib.cc:(.text._ZN4base15MessagePumpGlibD2Ev+0x76): undefined reference to `g_main_context_pop_thread_default' /usr/bin/ld: message_pump_glib.cc:(.text._ZN4base15MessagePumpGlibD2Ev+0x80): undefined reference to `g_main_context_unref' /usr/bin/ld: /home/bizconf/develop/webrtc/webrtc-checkout/src/out/m94/obj/libwebrtc.a(message_pump_glib.o): in function `base::MessagePumpGlib::Run(base::MessagePump::Delegate*)': message_pump_glib.cc:(.text._ZN4base15MessagePumpGlib3RunEPNS_11MessagePump8DelegateE+0x6b): undefined reference to `g_main_context_iteration' /usr/bin/ld: /home/bizconf/develop/webrtc/webrtc-checkout/src/out/m94/obj/libwebrtc.a(message_pump_glib.o): in function `base::MessagePumpGlib::MessagePumpGlib()': message_pump_glib.cc:(.text._ZN4base15MessagePumpGlibC2Ev+0x70): undefined reference to `g_main_context_new' /usr/bin/ld: message_pump_glib.cc:(.text._ZN4base15MessagePumpGlibC2Ev+0x7c): undefined reference to `g_main_context_push_thread_default' /usr/bin/ld: message_pump_glib.cc:(.text._ZN4base15MessagePumpGlibC2Ev+0xb8): undefined reference to `g_source_new' /usr/bin/ld: message_pump_glib.cc:(.text._ZN4base15MessagePumpGlibC2Ev+0xcd): undefined reference to `g_source_add_poll' /usr/bin/ld: message_pump_glib.cc:(.text._ZN4base15MessagePumpGlibC2Ev+0xdb): undefined reference to `g_source_set_priority' /usr/bin/ld: message_pump_glib.cc:(.text._ZN4base15MessagePumpGlibC2Ev+0xe9): undefined reference to `g_source_set_can_recurse' /usr/bin/ld: message_pump_glib.cc:(.text._ZN4base15MessagePumpGlibC2Ev+0xf6): undefined reference to `g_source_attach' /usr/bin/ld: message_pump_glib.cc:(.text._ZN4base15MessagePumpGlibC2Ev+0x109): undefined reference to `g_main_context_default' /usr/bin/ld: /home/bizconf/develop/webrtc/webrtc-checkout/src/out/m94/obj/libwebrtc.a(message_pump_glib.o): in function `base::MessagePumpGlib::FdWatchController::InitOrUpdate(int, int, base::WatchableIOMessagePumpPosix::FdWatcher*)': message_pump_glib.cc:(.text._ZN4base15MessagePumpGlib17FdWatchController12InitOrUpdateEiiPNS_27WatchableIOMessagePumpPosix9FdWatcherE+0x6b): undefined reference to `g_source_new' /usr/bin/ld: message_pump_glib.cc:(.text._ZN4base15MessagePumpGlib17FdWatchController12InitOrUpdateEiiPNS_27WatchableIOMessagePumpPosix9FdWatcherE+0x7b): undefined reference to `g_source_add_poll' /usr/bin/ld: message_pump_glib.cc:(.text._ZN4base15MessagePumpGlib17FdWatchController12InitOrUpdateEiiPNS_27WatchableIOMessagePumpPosix9FdWatcherE+0x89): undefined reference to `g_source_set_can_recurse' /usr/bin/ld: message_pump_glib.cc:(.text._ZN4base15MessagePumpGlib17FdWatchController12InitOrUpdateEiiPNS_27WatchableIOMessagePumpPosix9FdWatcherE+0x98): undefined reference to `g_source_set_callback' /usr/bin/ld: message_pump_glib.cc:(.text._ZN4base15MessagePumpGlib17FdWatchController12InitOrUpdateEiiPNS_27WatchableIOMessagePumpPosix9FdWatcherE+0xa6): undefined reference to `g_source_set_priority' /usr/bin/ld: /home/bizconf/develop/webrtc/webrtc-checkout/src/out/m94/obj/libwebrtc.a(message_pump_glib.o): in function `base::MessagePumpGlib::FdWatchController::Attach(base::MessagePumpGlib*)': message_pump_glib.cc:(.text._ZN4base15MessagePumpGlib17FdWatchController6AttachEPS0_+0x22): undefined reference to `g_source_attach' /usr/bin/ld: /home/bizconf/develop/webrtc/webrtc-checkout/src/out/m94/obj/libwebrtc.a(message_pump_glib.o): in function `base::MessagePumpGlib::WatchFileDescriptor(int, bool, int, base::MessagePumpGlib::FdWatchController*, base::WatchableIOMessagePumpPosix::FdWatcher*)': message_pump_glib.cc:(.text._ZN4base15MessagePumpGlib19WatchFileDescriptorEibiPNS0_17FdWatchControllerEPNS_27WatchableIOMessagePumpPosix9FdWatcherE+0x45): undefined reference to `g_source_attach' collect2: error: ld returned 1 exit status make[2]: *** [CMakeFiles/broadcaster.dir/build.make:154: broadcaster] Error 1 make[2]: Leaving directory '/home/bizconf/develop/mediasoup-broadcaster-demo/build' make[1]: *** [CMakeFiles/Makefile2:453: CMakeFiles/broadcaster.dir/all] Error 2 make[1]: Leaving directory '/home/bizconf/develop/mediasoup-broadcaster-demo/build' make: *** [Makefile:130: all] Error 2 make: Leaving directory '/home/bizconf/develop/mediasoup-broadcaster-demo/build' ``` I found there should some thing to be update. - `git checkout -b m94 refs/remotes/branch-heads/4147` is wrong。The branch-heads of m94 is 4606。 - some gen args have changed in m94。Change `use_ozone=true` to `use_x11=false use_glib=false` ```auto gn gen out/m94 --args='is_debug=false is_component_build=false is_clang=false rtc_include_tests=false rtc_use_h264=true use_rtti=true use_custom_libcxx=false treat_warnings_as_errors=false use_x11=false use_glib=false' ``` ---
**Author:** ![dev.ivan.h](https://avatars.discourse-cdn.com/v4/letter/d/e9bcb4/32.png) [@dev.ivan.h](https://mediasoup.discourse.group/u/dev.ivan.h)\ **Post date:** [June 15, 2022, 6:26am UTC](https://mediasoup.discourse.group/t/error-with-doc/3758/2 "2022-06-15T06:26:39Z")
It really helped! Thank you.