ninja: error: build.ninja:3: lexing error

[yuan-kai-design]

ase\build.ninja...
Compiling objects...
Allowing ninja to set a default number of workers... (overridable by setting the environment variable MAX_JOBS=N)
ninja: error: build.ninja:3: lexing error

Traceback (most recent call last):
File "E:\anaconda3_python38\envs\mmdet\lib\site-packages\torch\utils\cpp_extension.py", line 1667, in _run_ninja_build
subprocess.run(
File "E:\anaconda3_python38\envs\mmdet\lib\subprocess.py", line 516, in run
raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError: Command '['ninja', '-v']' returned non-zero exit status 1.
I want to know how to solve this problem

[meixiangzhang]

I have encountered the same problem. Have you resolved it? How did it solve it? Thank you!