（1）更新hosts文件
添加如下：
0.0.0.0 account.jetbrains.com
hosts文件，在windows中的地址为：
C:\Windows\System32\drivers\etc
然后断网，重连。（2） 复制通用注册码，粘贴在注册界面的Activation code的输入框中，点击 ok。
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