I know there are a lot of questions on stackoverflow and other sites about this, but despite all the answers given I couldn't solve my problem. For a while I have been trying to install firebase in my MERN Stack project from the command npm i firebase --save . Despite this I still get the following errors:

npm i firebase --save
npm ERR! code ENOTFOUND
npm ERR! syscall getaddrinfo
npm ERR! errno ENOTFOUND
npm ERR! network request to http://registry.npmjs.org/firebase failed, reason: getaddrinfo ENOTFOUND your-proxy-url
npm ERR! network This is a problem related to network connectivity.
npm ERR! network In most cases you are behind a proxy or have bad network settings.
npm ERR! network
npm ERR! network If you are behind a proxy, please make sure that the
npm ERR! network 'proxy' config is set properly.  See: 'npm help config'

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\user\AppData\Local\npm-cache\_logs\2022-06-15T22_23_35_935Z-debug.log

After multiple searches on the Internet, I executed the following command then, npm clear cache --force npm clean cache --force but without success. I even tried this command npm i firebase --force unfortunately I get the same errors. I even copy-pasted the node_modules firebase package from another project where I had managed to install it and copied the following line into my package.json file "firebase": "^9.8.2", so that npm recognizes this package, unfortunately npm didn't recognize it because when I run I always get the same missing module errors related to firebase. I do not really know what else to do.

CodePudding user response：

I found the solution on this url which is

npm config set registry http://registry.npmjs.org/ 

this will cause npm to use http instead of https. This means that npm will no longer be secure and will download without performing a prior check to know if I am on the right site. It is possible that it is my ISP that is blocking my connection to this site because I do not use a proxy.