我正在使用 Codeship 将我的 Ember 项目部署到 Heroku。这些部署过去可以毫无问题地工作，但从昨天开始，在步骤 (6) 中安装 npm 依赖项时，它们因“npm ERR！fetch failed ...”而失败。从那以后我没有改变任何东西，重置依赖缓存也没有帮助。
有谁熟悉这个问题？
我正在使用：
ember-cli 3.3.12
npm v3.8.6
节点 v5.11.1
- ...
- (step 1) ember test
- (step 2) Exporting Heroku API Key
- (step 3) check_access_to_heroku_app my_project
- (step 4) Preparing repository for Heroku deployment
- (step 5) git remote add heroku_my_project git@heroku.com:my_project.git
- (step 6) git push heroku_tnt-ui $CI_COMMIT_ID:refs/heads/master
---- Log of Step 6 -----
Counting objects: 69, done.
Delta compression using up to 32 threads.
Compressing objects: 100% (17/17), done.
Writing objects: 100% (36/36), 6.48 KiB | 0 bytes/s, done.
Total 36 (delta 23), reused 31 (delta 19)
remote: Compressing source files... done.
remote: Building source:
remote:
remote: -----> Fetching set buildpack https://github.com/tonycoco/heroku-buildpack-ember-cli.git... done
remote: -----> Ember CLI app detected
remote: -----> Exporting config vars to environment
remote: -----> Building environment: production
remote:
remote: PRO TIP: Avoid using semver ranges starting with '>' in engines.node
remote: See https://devcenter.heroku.com/articles/nodejs-support
remote:
remote: -----> Requested node range: >= 0.10.0
remote: -----> Resolved node version: 5.11.1
remote: -----> Downloading and installing node
remote: -----> Using default npm version: 3.8.6
remote: -----> Downloading and installing nginx
remote: -----> Adding boot script
remote: -----> Copying configs
remote: -----> Forcing rebuild of all node_modules. Pruning all node_modules.
remote: -----> Forcing re-installation of all bower_components. Pruning all bower_components.
remote: -----> Creating node_modules cache directory
remote: -----> Creating bower_components cache directory
remote: -----> Pruning cached dependencies not specified in package.json
remote: -----> Installing dependencies
remote: npm ERR! fetch failed https://registry.npmjs.org/ember-cli-sri/-/ember-cli-sri-2.1.0.tgz
remote: npm WARN retry will retry, error on last attempt: Error: fetch failed with status code 502
remote: npm ERR! fetch failed https://registry.npmjs.org/ember-simple-auth/-/ember-simple-auth-1.1.0.tgz
remote: npm WARN retry will retry, error on last attempt: Error: fetch failed with status code 502
remote: npm ERR! fetch failed https://registry.npmjs.org/ember-cli-sri/-/ember-cli-sri-2.1.0.tgz
remote: npm WARN retry will retry, error on last attempt: Error: fetch failed with status code 502
remote: npm ERR! fetch failed https://registry.npmjs.org/ember-simple-auth/-/ember-simple-auth-1.1.0.tgz
remote: npm WARN retry will retry, error on last attempt: Error: fetch failed with status code 502
remote: npm ERR! fetch failed https://registry.npmjs.org/ember-cli-sri/-/ember-cli-sri-2.1.0.tgz
remote: npm ERR! fetch failed https://registry.npmjs.org/ember-simple-auth/-/ember-simple-auth-1.1.0.tgz
remote: npm ERR! Linux 3.13.0-91-generic
remote: npm ERR! argv "/tmp/build_aaa68782965ff56ab3bc/vendor/node/bin/node" "/tmp/build_aaa6878296554310746bc/vendor/node/bin/npm" "install" "--quiet" "--no-optional" "--userconfig" "/tmp/build_aaa6875446ff56ab3bc/.npmrc"
remote: npm ERR! node v5.11.1
remote: npm ERR! npm v3.8.6
remote:
remote: npm ERR! fetch failed with status code 502
remote: npm ERR!
remote: npm ERR! If you need help, you may report this error at:
remote: npm ERR! <https://github.com/npm/npm/issues>
remote:
remote: npm ERR! Please include the following file with any support request:
remote: npm ERR! /tmp/build_aaa687829655456ab3bc/npm-debug.log
remote: 0 info it worked if it ends with ok
remote: 1 verbose cli [ '/tmp/build_aaa68782965546ab3bc/vendor/node/bin/node',
remote: 1 verbose cli '/tmp/build_aaa687846ff56ab3bc/vendor/node/bin/npm',
remote: 1 verbose cli 'install',
remote: 1 verbose cli '--quiet',
remote: 1 verbose cli '--no-optional',
remote: 1 verbose cli '--userconfig',
remote: 1 verbose cli '/tmp/build_aaa68782b46ff56ab3bc/.npmrc' ]
remote: 2 info using npm@3.8.6
remote: 3 info using node@v5.11.1
remote: 4 verbose config Skipping project config: /tmp/build_aaa6878296f56ab3bc/.npmrc. (matches userconfig)
remote: 5 silly loadCurrentTree Starting
remote: 6 silly install loadCurrentTree
remote: 7 silly install readLocalPackageData
remote: 8 silly install normalizeTree
...