我一直在尝试通过conda env create -f environment.yml创建一个conda环境，但是出现类似以下错误：
Collecting package metadata (repodata.json): done
Solving environment: failed
ResolvePackageNotFound:
- wheel==0.29.0=py36_0
- pandas-datareader==0.4.0=py36_0
- tk==8.5.18=vc14_0
- requests==2.14.2=py36_0
- pandas==0.20.3=py36_0
- jpeg==9b=vc14_0
- requests-ftp==0.3.1=py36_0
- qt==5.6.2=vc14_6
- icu==57.1=vc14_0
- zlib==1.2.8=vc14_3
- requests-file==1.4.1=py36_0
- statsmodels==0.8.0=np113py36_0
- python-dateutil==2.6.1=py36_0
- scipy==0.19.1=np113py36_0
- pip==9.0.1=py36_1
- setuptools==27.2.0=py36_1
- six==1.10.0=py36_0
- numpy==1.13.1=py36_0
- openssl==1.0.2l=vc14_0
- mkl==2017.0.3=0
- pytz==2017.2=py36_0
- matplotlib==2.0.2=np113py36_0
- patsy==0.4.1=py36_0
- python==3.6.2=0
- cycler==0.10.0=py36_0
- pyqt==5.6.0=py36_2
- libpng==1.6.27=vc14_0
- pyparsing==2.1.4=py36_0
- sip==4.18=py36_0
- vs2015_runtime==14.0.25420=0
在网上浏览了一些解决方案后，我将所有未安装的软件包（如依赖项）放入-pip:，并再次显示错误，如下所示：
Warning: you have pip-installed dependencies in your environment file, but you do not list pip itself as one of your conda dependencies. Conda may not use the correct pip to install your packages, and they may end up in the wrong place. Please add an explicit pip dependency. I'm adding one for you, but still nagging you.
Collecting package metadata (repodata.json): done
Solving environment: done
Preparing transaction: done
Verifying transaction: done
Executing transaction: done
Ran pip subprocess with arguments:
['C:\\Users\\vandi\\Anaconda3\\envs\\pyfinance\\python.exe', '-m', 'pip', 'install', '-U', '-r', 'C:\\Stock\\Notebooks\\condaenv.fl4e_z75.requirements.txt']
Pip subprocess output:
Pip subprocess error:
ERROR: Invalid requirement: 'cycler=0.10.0=py36_0' (from line 8 of C:\Stock\Notebooks\condaenv.fl4e_z75.requirements.txt)
Hint: = is not a valid operator. Did you mean == ?
CondaEnvException: Pip failed
请帮助我解决此错误。