对于使用 otree ( http://otree.readthedocs.io/ )的项目，我在尝试安装时遇到了一些问题Channels以使用实时功能时遇到了一些问题。
由于输出很长，我试图找出最重要的部分：
有关完整输出，请参阅：https://jsfiddle.net/L4ccmr2k/1/
红色标记的输出和我认为相关的输出：
1.
Building wheels for collected packages: twisted
Running setup.py bdist_wheel for twisted ... error
2.
creating build/temp.macosx-10.6-intel-3.6
creating build/temp.macosx-10.6-intel-3.6/src
creating build/temp.macosx-10.6-intel-3.6/src/twisted
creating build/temp.macosx-10.6-intel-3.6/src/twisted/test
/usr/bin/clang -fno-strict-aliasing -Wsign-compare -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -arch i386 -arch x86_64 -g -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c src/twisted/test/raiser.c -o build/temp.macosx-10.6-intel-3.6/src/twisted/test/raiser.o
xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun
error: command '/usr/bin/clang' failed with exit status 1
----------------------------------------
Failed building wheel for twisted …