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Using in yarn react project causes pre-flight check warning. #67

@geektechniquestudios

Description

@geektechniquestudios

I'm given a long list of things to do when trying to start a fresh app and add react-chessground to it, none of which resolve my issue. I've found that removing this project as a dependency fixes the problem. If I run yarn start, this error prints:

To fix the dependency tree, try following the steps below in the exact order:

  1. Delete package-lock.json (not package.json!) and/or yarn.lock in your project folder.
  2. Delete node_modules in your project folder.
  3. Remove "babel-jest" from dependencies and/or devDependencies in the package.json file in your project folder.
  4. Run npm install or yarn, depending on the package manager you use.

In most cases, this should be enough to fix the problem.
If this has not helped, there are a few other things you can try:

  1. If you used npm, install yarn (http://yarnpkg.com/) and repeat the above steps with it instead.
    This may help because npm has known issues with package hoisting which may get resolved in future versions.

  2. Check if C:\Users\null\repos\yarn-cw2\chess-wager-yarn-v2\node_modules\babel-jest is outside your project directory.
    For example, you might have accidentally installed something in your home folder.

  3. Try running npm ls babel-jest in your project folder.
    This will tell you which other package (apart from the expected react-scripts) installed babel-jest.

If nothing else helps, add SKIP_PREFLIGHT_CHECK=true to an .env file in your project.
That would permanently disable this preflight check in case you want to proceed anyway.

P.S. We know this message is long but please read the steps above :-) We hope you find them helpful!

error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

When I run npm ls babel-jest, I see the following.

├─┬ react-chessground@1.5.0
│ └─┬ react-scripts@3.4.4
│ ├── babel-jest@24.9.0
│ └─┬ jest@24.9.0
│ └─┬ jest-cli@24.9.0
│ └─┬ jest-config@24.9.0
│ ├── babel-jest@24.9.0 deduped
│ └─┬ jest-jasmine2@24.9.0
│ └─┬ jest-runtime@24.9.0
│ └─┬ jest-config@24.9.0
│ └── babel-jest@24.9.0 deduped
└─┬ react-scripts@4.0.3
├── babel-jest@26.6.3
└─┬ jest-circus@26.6.0
└─┬ jest-runner@26.6.3
└─┬ jest-config@26.6.3
└── babel-jest@26.6.3

I'm pretty sure the issue is just outdated dependencies.

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