npm -v也會出現問題，請問這個怎么修復，謝謝。module.js:471??? throw err;??? ^Error: Cannot find module '../lib/utils/unsupported.js'??? at Function.Module._resolveFilename (module.js:469:15)??? at Function.Module._load (module.js:417:25)??? at Module.require (module.js:497:17)??? at require (internal/module.js:20:19)??? at /usr/local/lib/node_modules/npm/bin/npm-cli.js:19:21??? at Object.<anonymous> (/usr/local/lib/node_modules/npm/bin/npm-cli.js:92:3)??? at Module._compile (module.js:570:32)??? at Object.Module._extensions..js (module.js:579:10)??? at Module.load (module.js:487:32)??? at tryModuleLoad (module.js:446:12)