I just ran meson setup buildDir in a clean gstreamer clone and got an error in meson-log.txt
--- stderr ---
Traceback (most recent call last):
File "mesonbuild\mesonmain.py", line 193, in run
File "mesonbuild\mesonmain.py", line 148, in run_runpython_command
File "<frozen runpy>", line 287, in run_path
File "<frozen runpy>", line 98, in _run_module_code
File "<frozen runpy>", line 88, in _run_code
File "D:\Dev\Projects\gstreamer\subprojects\glib-2.82.4\tools/grab-gio-dll-paths.py", line 68, in <module>
main()
~~~~^^
File "D:\Dev\Projects\gstreamer\subprojects\glib-2.82.4\tools/grab-gio-dll-paths.py", line 33, in main
raise ValueError("%s is not a valid build path" % build_path)
ValueError: D:\Dev\Projects\gstreamer\buildDir\subprojects\glib-2.82.4 is not a valid build path
subprojects\glib-2.82.4\girepository\introspection\meson.build:35:26: ERROR: Command `"C:\Program Files\Meson\meson.exe" runpython D:\Dev\Projects\gstreamer\subprojects\glib-2.82.4\tools/grab-gio-dll-paths.py --build-path=D:\Dev\Projects\gstreamer\buildDir\subprojects\glib-2.82.4` failed with status 2.
I have no problem building it on Linux or Android though.