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我正在幫助某人在Windows 7中運行npm。當執行npm更新時，會返回以下錯誤（ENOENT，scandir）。但是npm無法找到的文件夾已被驗證存在，並且運行npm的用戶對該文件夾擁有完全權限。下面是這個錯誤的npm-debug.log的詳細信息：npm Windows 7錯誤
18265 silly fetchPackageMetaData errno: -4058,
18265 silly fetchPackageMetaData code: 'ENOENT',
18265 silly fetchPackageMetaData syscall: 'scandir',
18265 silly fetchPackageMetaData path: 'C:\\Users\<\userpath\>\\npm-cache\\_git-remotes\\git-github-com-polymerelements-test-fixture-git-8142662e\\HEAD' }
18266 silly rollbackFailedOptional Starting
18267 silly rollbackFailedOptional Finishing
18268 silly runTopLevelLifecycles Finishing
18269 silly install printInstalled
18270 verbose stack Error: ENOENT: no such file or directory, scandir 'C:\Users\\<userpath\>\npm-cache\_git-remotes\git-github-com-polymerelements-test-fixture-git-8142662e\HEAD'
18271 verbose cwd C:\Users\\<userpath\>\git\PredixDev\predix-seed
18272 error Windows_NT 6.1.7601
18273 error argv "G:\\nodejs\\node.exe" "G:\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "update" "--no-optional"
18274 error node v7.2.0
18275 error npm v3.10.9
18276 error path C:\Users\\<userpath\>\npm-cache\_git-remotes\git-github-com-polymerelements-test-fixture-git-8142662e\HEAD
18277 error code ENOENT
18278 error errno -4058
18279 error syscall scandir
18280 error enoent ENOENT: no such file or directory, scandir 'C:\Users\\<userpath\>\npm-cache\_git-remotes\git-github-com-polymerelements-test-fixture-git-8142662e\HEAD'
18281 error enoent ENOENT: no such file or directory, scandir 'C:\Users\\<userpath\>\npm-cache\_git-remotes\git-github-com-polymerelements-test-fixture-git-8142662e\HEAD'
18281 error enoent This is most likely not a problem with npm itself
18281 error enoent and is related to npm not being able to find a file.
18282 verbose exit [ -4058, true ]
我對使用Windows上的節點並不熟悉。請幫忙，謝謝。 （注意：我已用\替換了特定的用戶文件夾信息以清理信息。）