SQL server 2016的SSRS服务器配置出了问题，web service URL打不开，提示http500 error。
解决办法：
1.查看log
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这个log的文件里面讲到有2个key 重复了。可以在rssrvpolicy里面查到重复的key。
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Security class不能有重复。删除重复的key后，就可以打开URL了。
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There are some errors which says that the key is already there. I checked in rssrvpolicy.config and there are some 2 keys which is being repeated as you can see the above log.
