What is the reason for a Vercel build error that does not occur when working locally?

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There could be several reasons for a Vercel build error that does not occur when working locally. Here are a few possible explanations:

1. Environment differences: Vercel's build environment may be different from your local environment. For example, Vercel may be using a different version of Node.js or a different operating system.

2. Dependency issues: Vercel may be using a different version of a dependency than what you have installed locally. This could cause compatibility issues and result in build errors.

3. Network connectivity: Vercel may have trouble accessing certain resources or services during the build process due to network connectivity issues.

4. Build configuration: Your build configuration may be different on Vercel than on your local machine. For example, you may be running different scripts or using different build tools.

5. Code changes: It's possible that you made changes to your code that work locally but cause errors on Vercel. This could be due to differences in file paths, environment variables, or other factors.

Overall, it's important to carefully review the error message and log files to pinpoint the root cause of the issue. Debugging a Vercel build error can be challenging, but by identifying the specific problem, you can take steps to resolve it and ensure a successful deployment.