Scrapy 找不到指定模块etree解决方法

今天用Scrapy创建项目时出现以下报错

C:\Users\snake>scrapy
Traceback (most recent call last):
  File "E:\Anaconda3\Scripts\scrapy-script.py", line 6, in <module>
    from scrapy.cmdline import execute
  File "E:\Anaconda3\lib\site-packages\scrapy\__init__.py", line 12, in <module>
    from scrapy.spiders import Spider
  File "E:\Anaconda3\lib\site-packages\scrapy\spiders\__init__.py", line 10, in <module>
    from scrapy.http import Request
  File "E:\Anaconda3\lib\site-packages\scrapy\http\__init__.py", line 11, in <module>
    from scrapy.http.request.form import FormRequest
  File "E:\Anaconda3\lib\site-packages\scrapy\http\request\form.py", line 11, in <module>
    from lxml.html import FormElement, HtmlElement, HTMLParser, SelectElement
  File "E:\Anaconda3\lib\site-packages\lxml\html\__init__.py", line 53, in <module>
    from .. import etree
ImportError: DLL load failed while importing etree: 找不到指定的模块。
同时我尝试在pycharm运行以前写的Scrapy项目都是没有问题的 非常奇怪
我根据提示 重新安装了lxml 和 etree并没有解决
后来看到一篇帖子 说环境变量不全导致 我按照步骤补全就解决了
需要配置的环境变量如下：
E:\Anaconda3
E:\Anaconda3\Scripts
E:\Anaconda3\Library\bin
E:\Anaconda3\Library\lib
其中  **E:\Anaconda3 ** 是我的anaconda根目录