错误，而试图安装纱线在vscode当我之前一直使用npm

Question

错误信息

yarn : File C:UsersAdminAppDataRoamingnpmyarn.ps1 cannot be loaded 
because running scripts is disabled on this system. For more 
information, see about_Execution_Policies at 
http://go.microsoft.com/fwlink/?LinkID=135170.
At line:1 char:1
+ yarn
+ ~~~~
+ CategoryInfo          : SecurityError: (:) [], PSSecurityException
+ FullyQualifiedErrorId : UnauthorizedAccess

Answer 1

对于那些不知道如何使用Windows PowerShell解决此错误的人

1. 打开PowerShell(以管理员身份运行)
2. 使用该命令检查当前执行策略

Get-ExecutionPolicy
# You should get 'Restricted'

3. 运行此命令使其为"无限制"

Set-ExecutionPolicy Unrestricted

4. 再次检查该命令是否改变了执行策略

   Get-ExecutionPolicy
   You should get 'Unrestricted'
   

5. 现在尝试在你的项目上运行nodemon

nodemon 'filename.js'

希望对大家有帮助