我试图安装Python 3.7的virtualenv包在运行MAC OS 10.14.3我的新的Mac系统。但系统安装失败，由于环境的错误
包：
lxml==3.8.0
Pillow==4.1.1
Fiona==1.7.10.post1
pandas==0.20.2
我重视在https://pastebin.com/tzMwwHjB全面崩溃报告
Failed building wheel for Fiona
Failed building wheel for lxml
Failed building wheel for pandas
Failed building wheel for Pillow
Error checking for conflicts.
Traceback (most recent call last):
File "/Users/titus/.virtualenvs/julo-ana/lib/python3.7/site-packages/pip/_vendor/pkg_resources/__init__.py", line 2897, in _dep_map
return self.__dep_map
File "/Users/titus/.virtualenvs/julo-ana/lib/python3.7/site-packages/pip/_vendor/pkg_resources/__init__.py", line 2691, in __getattr__
raise AttributeError(attr)
AttributeError: _DistInfoDistribution__dep_map
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/Users/titus/.virtualenvs/julo-ana/lib/python3.7/site-packages/pip/_vendor/pkg_resources/__init__.py", line 2888, in _parsed_pkg_info
return self._pkg_info
File "/Users/titus/.virtualenvs/julo-ana/lib/python3.7/site-packages/pip/_vendor/pkg_resources/__init__.py", line 2691, in __getattr__
raise AttributeError(attr)
AttributeError: _pkg_info
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/Users/titus/.virtualenvs/julo-ana/lib/python3.7/site-packages/pip/_internal/commands/install.py", line 503, in _warn_about_conflicts
package_set, _dep_info = check_install_conflicts(to_install)
File "/Users/titus/.virtualenvs/julo-ana/lib/python3.7/site-packages/pip/_internal/operations/check.py", line 108, in check_install_conflicts
package_set, _ = create_package_set_from_installed()
File "/Users/titus/.virtualenvs/julo-ana/lib/python3.7/site-packages/pip/_internal/operations/check.py", line 47, in create_package_set_from_installed
package_set[name] = PackageDetails(dist.version, dist.requires())
File "/Users/titus/.virtualenvs/julo-ana/lib/python3.7/site-packages/pip/_vendor/pkg_resources/__init__.py", line 2635, in requires
dm = self._dep_map
File "/Users/titus/.virtualenvs/julo-ana/lib/python3.7/site-packages/pip/_vendor/pkg_resources/__init__.py", line 2899, in _dep_map
self.__dep_map = self._compute_dependencies()
File "/Users/titus/.virtualenvs/julo-ana/lib/python3.7/site-packages/pip/_vendor/pkg_resources/__init__.py", line 2908, in _compute_dependencies
for req in self._parsed_pkg_info.get_all('Requires-Dist') or []:
File "/Users/titus/.virtualenvs/julo-ana/lib/python3.7/site-packages/pip/_vendor/pkg_resources/__init__.py", line 2890, in _parsed_pkg_info
metadata = self.get_metadata(self.PKG_INFO)
File "/Users/titus/.virtualenvs/julo-ana/lib/python3.7/site-packages/pip/_vendor/pkg_resources/__init__.py", line 1410, in get_metadata
value = self._get(self._fn(self.egg_info, name))
File "/Users/titus/.virtualenvs/julo-ana/lib/python3.7/site-packages/pip/_vendor/pkg_resources/__init__.py", line 1522, in _get
with open(path, 'rb') as stream:
FileNotFoundError: [Errno 2] No such file or directory: '/Users/titus/.virtualenvs/julo-ana/lib/python3.7/site-packages/Fiona-1.8.4.dist-info/METADATA'
Could not install packages due to an EnvironmentError: [Errno 2] No such file or directory: '/Users/titus/.virtualenvs/julo-ana/lib/python3.7/site-packages/Fiona-1.8.4.dist-info/RECORD'
任何一个可以知道这种解决方案。我试着去解决这个问题的仍然面对它最后两天。