10:52:56 PM: There might be a problem with the project dependency tree.
10:52:56 PM: It is likely not a bug in Create React App, but something you need to fix locally.
10:52:56 PM: The react-scripts package provided by Create React App requires a dependency:
10:52:56 PM: "babel-jest": "23.6.0"
10:52:56 PM: Don't try to install it manually: your package manager does it automatically.
10:52:56 PM: However, a different version of babel-jest was detected higher up in the tree:
10:52:56 PM: /opt/build/repo/node_modules/babel-jest (version: 24.7.1)
10:52:56 PM: Manually installing incompatible versions is known to cause hard-to-debug issues.
10:52:56 PM: If you would prefer to ignore this check, add SKIP_PREFLIGHT_CHECK=true to an .env file in your project.
10:52:56 PM: That will permanently disable this message but you might encounter other issues.
10:52:56 PM: To fix the dependency tree, try following the steps below in the exact order:
10:52:56 PM: 1. Delete package-lock.json (not package.json!) and/or yarn.lock in your project folder.
10:52:56 PM: 2. Delete node_modules in your project folder.
10:52:56 PM: 3. Remove "babel-jest" from dependencies and/or devDependencies in the package.json file in your project folder.
10:52:56 PM: 4. Run npm install or yarn, depending on the package manager you use.
10:52:56 PM: In most cases, this should be enough to fix the problem.
10:52:56 PM: If this has not helped, there are a few other things you can try:
10:52:56 PM: 5. If you used npm, install yarn (http://yarnpkg.com/) and repeat the above steps with it instead.
10:52:56 PM: This may help because npm has known issues with package hoisting which may get resolved in future versions.
10:52:56 PM: 6. Check if /opt/build/repo/node_modules/babel-jest is outside your project directory.
10:52:56 PM: For example, you might have accidentally installed something in your home folder.
10:52:56 PM: 7. Try running npm ls babel-jest in your project folder.
10:52:56 PM: This will tell you which other package (apart from the expected react-scripts) installed babel-jest.
10:52:56 PM: If nothing else helps, add SKIP_PREFLIGHT_CHECK=true to an .env file in your project.
10:52:56 PM: That would permanently disable this preflight check in case you want to proceed anyway.
10:52:56 PM: P.S. We know this message is long but please read the steps above :-) We hope you find them helpful!
因此，我最近将新版本推入了我的应用程序，并遇到了上述错误，这与babel-jest有关。这不在我的package.json中，它必须是对等依赖项。
该版本在本地运行良好，我已通过删除node_modules和package-lock.json进行确认，所有安装和运行都很好。
当我按下master时，netlify会记录此错误，并且不会继续。
答案 0 :(得分：0)
对我来说，解决此问题的方法是在package-lock.json中搜索babel-jest。然后，我将该版本添加到package.json中的某个决议条目中，如下所示：
"resolutions": {
"babel-jest": "23.6.0"
}
这解决了问题，我的应用程序已在Netlify上正确发布。
答案 1 :(得分：0)
我知道这个问题有点老了，答案已经被选择了，但是上面的答案对我不起作用。所以我在这里解决我的问题
将package-lock.json放在.gitignore文件中，但是如果您已经将其上传到github而不提及.gitignore文件，则将其从git cache（local repo）中删除
git rm -r --cached package-lock.json
git add .
git commit -m 'Remove package-lock.json'
git push origin master
在netlify网站中，转到“网站设置”->“构建和部署”->“环境”，然后将以下内容放入环境变量中
SKIP_PREFLIGHT_CHECK=true
如果您的netlify构建假定警告为错误，则将以下内容置于“构建设置”->“构建命令”中
CI=false npm run build