My mnt file is empty in my container

[dash7ou]

when i run:
cp -a /mnt/{.git,build,Makefile} . && source /root/emsdk/emsdk_env.sh && make && cp ffmpeg*.js /mnt
==>> result
cp: cannot stat '/mnt/.git': No such file or directory
cp: cannot stat '/mnt/build': No such file or directory
cp: cannot stat '/mnt/Makefile': No such file or directory

[nadiTime]

@dash7ou , how did you solve this?
Im getting same error

[MatteoBuffo]

Same here.