# OSX: qgroundcontrol compiling errors **URL:** \ **Category:** QGroundControl\ **Created:** [September 18, 2024, 9:58am UTC](https://discuss.px4.io/t/osx-qgroundcontrol-compiling-errors/40776 "2024-09-18T09:58:21Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![kevindsp](https://discuss.px4.io/user_avatar/discuss.px4.io/kevindsp/32/5192_2.png) [@kevindsp](https://discuss.px4.io/u/kevindsp)\ **Post date:** [September 18, 2024, 9:58am UTC](https://discuss.px4.io/t/osx-qgroundcontrol-compiling-errors/40776/1 "2024-09-18T09:58:21Z")
I have tried to compile the latest qgroundcontrol with the new installed QT creator on my OSX many times. But it fails as below everytimes. How can I fix it? Thank you. … gstreamer\_good\_plugins-src/ext/qt6/gstplugin.cc.o.d -o src/VideoManager/VideoReceiver/GStreamer/qmlglsink/CMakeFiles/qmlglsink.dir/ **/** / **/** /**/\_deps/gstreamer\_good\_plugins-src/ext/qt6/gstplugin.cc.o -c /Users/kevin/qgroundcontrol/build/Qt\_6\_6\_3\_for\_macOS-Release/\_deps/gstreamer\_good\_plugins-src/ext/qt6/gstplugin.cc In file included from /Users/kevin/qgroundcontrol/build/Qt\_6\_6\_3\_for\_macOS-Release/\_deps/gstreamer\_good\_plugins-src/ext/qt6/gstplugin.cc:25: /Users/kevin/qgroundcontrol/build/Qt\_6\_6\_3\_for\_macOS-Release/\_deps/gstreamer\_good\_plugins-src/ext/qt6/gstqt6elements.h:29:1: error: unknown type name ‘GST\_ELEMENT\_REGISTER\_DECLARE’ GST\_ELEMENT\_REGISTER\_DECLARE (qml6glsink); ^ 1 error generated. ………** In file included from /Users/kevin/qgroundcontrol/build/Qt\_6\_6\_3\_for\_macOS-Release/\_deps/gstreamer\_good\_plugins-src/ext/qt6/gstqml6glsink.cc:75: /Users/kevin/qgroundcontrol/build/Qt\_6\_6\_3\_for\_macOS-Release/\_deps/gstreamer\_good\_plugins-src/ext/qt6/gstqt6elements.h:29:1: error: unknown type name ‘GST\_ELEMENT\_REGISTER\_DECLARE’ GST\_ELEMENT\_REGISTER\_DECLARE (qml6glsink); ^ /Users/kevin/qgroundcontrol/build/Qt\_6\_6\_3\_for\_macOS-Release/\_deps/gstreamer\_good\_plugins-src/ext/qt6/gstqml6glsink.cc:141:1: error: C++ requires a type specifier for all declarations GST\_ELEMENT\_REGISTER\_DEFINE\_WITH\_CODE (qml6glsink, “qml6glsink”, ^ /Users/kevin/qgroundcontrol/build/Qt\_6\_6\_3\_for\_macOS-Release/\_deps/gstreamer\_good\_plugins-src/ext/qt6/gstqml6glsink.cc:142:61: error: use of undeclared identifier ‘plugin’ GST\_RANK\_NONE, GST\_TYPE\_QML6\_GL\_SINK, qt6\_element\_init (plugin)); ^ /Users/kevin/qgroundcontrol/build/Qt\_6\_6\_3\_for\_macOS-Release/\_deps/gstreamer\_good\_plugins-src/ext/qt6/gstqml6glsink.cc:581:10: error: no member named ‘send\_event\_simple’ in ‘\_GstNavigationInterface’ iface-\>send\_event\_simple = gst\_qml6\_gl\_sink\_navigation\_send\_event; 4 errors generated. ……. In file included from /Users/kevin/qgroundcontrol/build/Qt\_6\_6\_3\_for\_macOS-Release/\_deps/gstreamer\_good\_plugins-src/ext/qt6/gstqt6element.cc:25: /Users/kevin/qgroundcontrol/build/Qt\_6\_6\_3\_for\_macOS-Release/\_deps/gstreamer\_good\_plugins-src/ext/qt6/gstqt6elements.h:29:1: error: unknown type name ‘GST\_ELEMENT\_REGISTER\_DECLARE’ GST\_ELEMENT\_REGISTER\_DECLARE (qml6glsink); ^ 1 error generated.