安装yarn后yarn -v报错

安装yarn后，当运行yarn -v命令时报错，可能是因为系统禁止运行脚本的执行策略导致的。解决这个问题的方法是以管理员身份运行PowerShell并执行以下命令：set-ExecutionPolicy RemoteSigned。这将更改执行策略并允许运行脚本。如果问题仍然存在，您可以尝试删除C:\Users\Administrator\AppData\Roaming\npm路径下的npm和npm cache文件，然后重新安装Node.js。这样应该能解决问题并使yarn -v命令正常工作。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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