使用jspm安装Angular遇EPERM权限错误，求解决方案

Hey there, sorry to hear you're stuck with this EPERM permission error while trying to install Angular via jspm. This is usually tied to either a locked directory, insufficient permissions, or a corrupted cache—let's walk through the most reliable fixes:

• Close all locking processes
  First, make sure no programs are using the problematic directory. Close any open VS Code windows, command prompt/PowerShell instances, or browsers that might have files from that Angular package open. Even background Node.js processes could be holding onto the folder—open Task Manager, find any node.exe processes, end them, then try running your jspm install command again.

• Manually delete the problematic package directory
  Navigate to C:\Users\AbduRahman\AppData\Local\.jspm\packages\npm@angular\core@8.2.9 and delete this entire folder. If Windows says the folder is in use, restart your computer first—this will release any locked files, then you can delete it easily. After deleting, re-run your jspm install command.

• Run your command line as Administrator
  Right-click on Command Prompt or PowerShell and select "Run as administrator". This gives the jspm process elevated permissions to modify system directories like the AppData cache, which often resolves EPERM errors related to restricted access.

• Clear the jspm cache
  Execute this command to wipe the entire jspm cache, which can fix issues from corrupted cached files:

  jspm cache clean
  

  Once the cache is cleared, try installing Angular again.

• Verify folder permissions
  If the above steps don't work, check the permissions on the bundles folder mentioned in the error:

  1. Right-click the bundles folder and select Properties → Security tab.
  2. Find your user account in the list, ensure it has the Full Control permission enabled.
  3. If not, click Edit to add the permission, save changes, then retry the install.

• Switch to a local jspm cache directory (alternative)
  If system-wide permissions keep causing issues, you can configure jspm to use a local cache in your project instead:

  1. Create a .jspm folder in your project root directory.
  2. Set the JSPM_PACKAGES environment variable to point to this local folder (e.g., set JSPM_PACKAGES=C:\path\to\your\project\.jspm in Command Prompt).
  3. Run your jspm install command again—this uses the local cache which your user account should have full access to.

Hopefully one of these steps gets you past the EPERM error! If you're still hitting issues, feel free to share any additional details (like if you're using a specific jspm version) and we can troubleshoot further.

内容的提问来源于stack exchange，提问作者Abdur_Rahman