出现意外错误："https://registry.yarnpkg.com/error-ex/-/error-ex-1.3.2.tgz:请求失败\"404未找到\“

Question

当我尝试使用create- react -app创建一个新的react应用程序时，我得到了以下信息：

» npx create-react-app my-order

Creating a new React app in /Users/ian/myproject/my-order.

Installing packages. This might take a couple of minutes.
Installing react, react-dom, and react-scripts...

yarn add v1.19.0
[1/4]   Resolving packages...
[2/4]   Fetching packages...
error An unexpected error occurred: "https://registry.yarnpkg.com/error-ex/-/error-ex-1.3.2.tgz: Request failed \"404 Not Found\"".
info If you think this is a bug, please open a bug report with the information provided in "/Users/ian/myproject/my-order/yarn-error.log".
info Visit https://yarnpkg.com/en/docs/cli/add for documentation about this command.

Aborting installation.
  yarnpkg add --exact react react-dom react-scripts --cwd /Users/ian/myproject/my-order has failed.

Deleting generated file... package.json
Deleting generated file... yarn.lock
Done.

我的本地环境信息是这样的：

» npx create-react-app --info

Environment Info:

  System:
    OS: macOS 10.14.6
    CPU: x64 Intel(R) Core(TM) i7-4870HQ CPU @ 2.50GHz
  Binaries:
    Node: 11.1.0 - /usr/local/bin/node
    Yarn: 1.19.0 - ~/.yarn/bin/yarn
    npm: 6.7.0 - /usr/local/bin/npm
  Browsers:
    Chrome: 80.0.3987.100
    Firefox: 72.0.2
    Safari: 12.1.2
  npmPackages:
    react: Not Found
    react-dom: Not Found
    react-scripts: Not Found
  npmGlobalPackages:
    create-react-app: 2.1.1

有人知道这是怎么回事吗？

Answer 1

在你的命令中试试这个：- yarn缓存clean - yarn，它可能会起作用...

Answer 2

有时，访问npmjs.com和安装限定作用域的包时会出现问题。尝试检查https://status.npmjs.org/

Answer 3

如果您使用NVM，那么当您从最初安装主要nodejs版本切换到其他版本时，可能会出现这个问题，所以如果可以的话，就改回原来的版本：nvm use <original node installation's version>

但是，如果这对你不起作用，那么如果我不能使用非NVM安装，那么我会尝试直接从网站重新安装node：https://nodejs.org/en/

对于一些人来说，他们似乎有一个电子访问错误，这可以通过将他们的注册表从http改为https：npm install --registry=https://registry.npmjs.org/来修复

一个类似的问题：Cannot run npm install from nvm, but working well using source from https://nodejs.org/en/download/