recently playing ubuntu18.04, does not have much space reserved for the program, because it is directly mounted to the disk of the windwos system.
dotnet new a xunit project on the mounted disk at night, and then there is a mistake in build.
Show MSB3021: Unable to copy file "obj/Debug/netcoreapp2.0/." To "bin/Debug/netcoreapp2.0/.". Access to the path is denied
but something weird happened . I took a look at the bin directory, which is actually a thing of the past by copy.
I manually cp and rm those who do not believe in evil spirits, and they are all fine. ls-l shows that they are all -rwxrwxrwx / drwxrwxrwx
No problem. I have no problem trying sudo dotnet build,. Hey, what"s the authority problem?!

as a contrast, another project was new under the unmounted / home/XXX/, and the build was very smooth.

after messing around all night.

is there any big hand who can help me answer it? thank you very much