Today I updated to React Native Version 0.65.1. After that I was unable to Start the Metro Server
I am now receiving following error message while building a Release .apk:
node_modules/metro/src/Server.js:350
processRequest = (req, res, next) => {
^
SyntaxError: Unexpected token =
at new Script (vm.js:80:7)
at createScript (vm.js:274:10)
at Object.runInThisContext (vm.js:326:10)
at Module._compile (internal/modules/cjs/loader.js:664:28)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:712:10)
at Module.load (internal/modules/cjs/loader.js:600:32)
at tryModuleLoad (internal/modules/cjs/loader.js:539:12)
at Function.Module._load (internal/modules/cjs/loader.js:531:3)
at Module.require (internal/modules/cjs/loader.js:637:17)
at require (internal/modules/cjs/helpers.js:22:18)
info Run CLI with --verbose flag for more details.
> Task :app:bundleReleaseJsAndAssets FAILED
I've tried:
This is the snippet from the Metro Server Node Module
processRequest = (req, res, next) => {
this._processRequest(req, res, next).catch(next);
};
Additional Information: I am using a MacBook Pro with macOS Big Sur 11.5.2
Thanks everyone
Just my two cents: I had the same problem. My problem was due to NVM. I used node version 14 for the current project but my default version was node 10. And metro server opened in a new terminal that didn't use the current node but the default one. Fixed it by setting node version to 14.
Fix:
nvm alias default v14.17.0
I have used react native 0.66 after i downgraded into 0.64, this worked for me.
I have a new React Native project on v0.66 and have encountered this but was able to fix it without downgrading.
So, I use nvm to manage my node versions and I'm on v16.13.0 currently, which should be ok, but it seems I also had node and yarn installed through brew. The node version in brew was v13.10.1.
To fix this:
brew uninstall yarn
brew uninstall node
npm install --global yarn
and it works 👍 hopefully this helps someone else