Traceback (most recent call last):
File "C:\Users\builder\Miniconda3\Scripts\conda-build-script.py", line 4, in <module>
sys.exit(main())
File "C:\Users\builder\Miniconda3\lib\site-packages\conda_build\main_build.py", line 110, in main
args_func(args, p)
File "C:\Users\builder\Miniconda3\lib\site-packages\conda_build\main_build.py", line 312, in args_func
args.func(args, p)
File "C:\Users\builder\Miniconda3\lib\site-packages\conda_build\main_build.py", line 272, in execute
build.build(m, verbose=not args.quiet, post=post)
File "C:\Users\builder\Miniconda3\lib\site-packages\conda_build\build.py", line 365, in build
windows.build(m)
File "C:\Users\builder\Miniconda3\lib\site-packages\conda_build\windows.py", line 95, in build
env.update(environ.get_dict(m))
File "C:\Users\builder\Miniconda3\lib\site-packages\conda_build\environ.py", line 94, in get_dict
d.update(**get_git_build_info(d['SRC_DIR']))
File "C:\Users\builder\Miniconda3\lib\site-packages\conda_build\environ.py", line 47, in get_git_build_info
env=env)
File "C:\Users\builder\Miniconda3\lib\subprocess.py", line 858, in __init__
restore_signals, start_new_session)
File "C:\Users\builder\Miniconda3\lib\subprocess.py", line 1111, in _execute_child
startupinfo)
FileNotFoundError: [WinError 2] The system cannot find the file specified
貌似這個問題是因為以前裝Anaconda，后來卸載之后重新裝，發現不能解決問題，開始是jupyter qtconsole不能用，后來變成了jupyter notebook也不能用了，於是上網看解決這個問題的方法，貌似是因為已經建立了一個kernel，但是這個kernel的地址和anaconda默認的地址不一致，所以需要重新設置地址。
解決辦法也很簡單
打開CMD或者Powershell， 輸入
jupyter kernelspec list
會顯示出你所有的kernel，然后將其刪除,比如kernel的名字叫做python3，輸入
jupyter kernelspec remove python3
然后輸入
jupyter kernelspec install-self --user
這樣就可以重新打開qtconsole和notebook了
Reference: