firebase projects:listと入力すると下記のエラーが出ます。エラーの原因を教えて頂きたいです。

Error: EPERM: operation not permitted, uv_cwd
    at process.wrappedCwd (internal/bootstrap/switches/does_own_process_state.js:129:28)
    at process.cwd (/usr/local/lib/node_modules/firebase-tools/node_modules/graceful-fs/polyfills.js:10:19)
    at Object.<anonymous> (/usr/local/lib/node_modules/firebase-tools/node_modules/depd/index.js:25:24)
    at Module._compile (internal/modules/cjs/loader.js:1147:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1167:10)
    at Module.load (internal/modules/cjs/loader.js:996:32)
    at Function.Module._load (internal/modules/cjs/loader.js:896:14)
    at Module.require (internal/modules/cjs/loader.js:1036:19)
    at require (internal/modules/cjs/helpers.js:72:18)
    at Object.<anonymous> (/usr/local/lib/node_modules/firebase-tools/node_modules/body-parser/index.js:14:17) {
  errno: -1,
  code: 'EPERM',
  syscall: 'uv_cwd'
}