I have made a simple REST API, and I have a react native application where I am trying to call the API with fetch. The server is running on the same computer as the react native application, in my fetch call I used 'fetch('http://10.0.2.2:3000/Users)' which from what I know is the correct way to call it. When I run my react-native application to test if the connection works, I get the following error:
Error: ENOENT: no such file or directory, open 'C:\root\react-native\ReactAndroid\hermes-engine.cxx\Release\21w5t5f5\x86_64\lib\InternalBytecode\InternalBytecode.js'
at Object.openSync (node:fs:584:3)
at Object.readFileSync (node:fs:452:35)
at getCodeFrame (C:\Users\brayd\projects\startscreentest\node_modules\metro\src\Server.js:1004:18)
at Server._symbolicate (C:\Users\brayd\projects\startscreentest\node_modules\metro\src\Server.js:1073:22)
at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
at async Server._processRequest (C:\Users\brayd\projects\startscreentest\node_modules\metro\src\Server.js:437:7) {
errno: -4058,
syscall: 'open',
code: 'ENOENT',
path: 'C:\root\react-native\ReactAndroid\hermes-engine.cxx\Release\21w5t5f5\x86_64\lib\InternalBytecode\InternalBytecode.js'
Has anyone got this error before and know of a a solution? Would really appreciate some help with this, I have been tried almost everything I can think of and at this point I am lost as to what I should do.
I have never seen this error before, I have looked online to see if anyone has posted a solution and found nothing, I have no idea how to solve this error, I have been debugging for hours, and have tried countless things including changing the fetch url, making a new application, etc. I know the api works because I have tested all the routes with curl, I know the fetch statements work because I created a js project and tested the fetch statements. For some reason, its just not working on my react-native application, its either giving me the above error, or if I change the url to something else like 'fetch('http://localhost:3000/Users)' it just gives me 'network connection error'.
You have to create a wamp or nginx server on your computer. Then your API project starts on a server. After that, you can access your pc IP address. Actually, your react native simulator doesn't work on your pc. So you can't access the directly pc IP address.
I keep receiving when I run my project - Nextjs. I think it about Next Auth, but don't actually know what to do. I am using version 4.3.1
Need help with next-auth
I have tried changing my next-auth version but no. Yet when I deployed in vercel, it went through
If you don't have NEXTAUTH_URL set in your .env file you will get this error. However vercel will work as next-auth automatically sets it when deployed to vercel.
https://next-auth.js.org/configuration/options#nextauth_url
If you do have NEXTAUTH_URL set then my best guess is the url is wrong in some way. Maybe missing http://?
We are currently having a problem with our meteor app.
Because of the problems with ios we changed for our Meteor app the DISABLE_WEBSOCKETS to 1. But then we had problems with our nginx so we changed it back to 0 (in our case we just removed the ENV variable from our deployment)
Since them Meteor is still not using Websockets. We have no idea why. This causes the problem that we get this error:
POST https://OUR_APP.COM/sockjs/632/bl2mtg76/xhr_send 404 ()
Uncaught Error: INVALID_STATE_ERR
So Meteor is using sockjs instead of websockets.
We have tested the env variable if its set correctly.
console.log(process.env.DISABLE_WEBSOCKETS); // logs 0
For deployment we are using pm2-meteor.
Does anyone has an idea why Meteor is forced to use sockjs instead of websockets ? We have now deployed our app several times but it does not change smth.
Btw: Websockets are - of course - enabled in my browser.
My server threw this today, which is a Node.js error I've never seen before:
Error: getaddrinfo EAI_AGAIN my-store.myshopify.com:443
at Object.exports._errnoException (util.js:870:11)
at errnoException (dns.js:32:15)
at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:78:26)
I'm wondering if this is related to the DynDns DDOS attack which affected Shopify and many other services today. Here's an article about that.
My main question is what does dns.js do? What part of node is it a part of? How can I recreate this error with a different domain?
If you get this error with Firebase Cloud Functions, this is due to the limitations of the free tier (outbound networking only allowed to Google services).
Upgrade to the Flame or Blaze plans for it to work.
EAI_AGAIN is a DNS lookup timed out error, means it is a network connectivity error or proxy related error.
My main question is what does dns.js do?
The dns.js is there for node to get ip address of the domain(in brief).
Some more info:
http://www.codingdefined.com/2015/06/nodejs-error-errno-eaiagain.html
If you get this error from within a docker container, e.g. when running npm install inside of an alpine container, the cause could be that the network changed since the container was started.
To solve this, just stop and restart the container
docker-compose down
docker-compose up
Source: https://github.com/moby/moby/issues/32106#issuecomment-578725551
As xerq's excellent answer explains, this is a DNS timeout issue.
I wanted to contribute another possible answer for those of you using Windows Subsystem for Linux - there are some cases where something seems to be askew in the client OS after Windows resumes from sleep. Restarting the host OS will fix these issues (it's also likely restarting the WSL service will do the same).
For those who perform thousand or millions of requests per day, and need a solution to this issue:
It's quite normal to get getaddrinfo EAI_AGAIN errors when performing a lot of requests on your server. Node.js itself doesn't perform any DNS caching, it delegates everything DNS related to the OS.
You need to have in mind that every http/https request performs a DNS lookup, this can become quite expensive, to avoid this bottleneck and getaddrinfo errors, you can implement a DNS cache.
http.request (and https) accepts a lookup property which defaults to dns.lookup()
http.get('http://example.com', { lookup: yourLookupImplementation }, response => {
// do something here with response
});
I strongly recommend to use an already tested module, instead of writing a DNS cache yourself, since you'll have to handle TTL correctly, among other things to avoid hard to track bugs.
I personally use cacheable-lookup which is the one that got uses (see dnsCache option).
You can use it on specific requests
const http = require('http');
const CacheableLookup = require('cacheable-lookup');
const cacheable = new CacheableLookup();
http.get('http://example.com', {lookup: cacheable.lookup}, response => {
// Handle the response here
});
or globally
const http = require('http');
const https = require('https');
const CacheableLookup = require('cacheable-lookup');
const cacheable = new CacheableLookup();
cacheable.install(http.globalAgent);
cacheable.install(https.globalAgent);
NOTE: have in mind that if a request is not performed through Node.js http/https module, using .install on the global agent won't have any effect on said request, for example requests made using undici
The OP's error specifies a host (my-store.myshopify.com).
The error I encountered is the same in all respects except that no domain is specified.
My solution may help others who are drawn here by the title "Error: getaddrinfo EAI_AGAIN"
I encountered the error when trying to serve a NodeJs & VueJs app from a different VM from where the code was developed originally.
The file vue.config.js read :
module.exports = {
devServer: {
host: 'tstvm01',
port: 3030,
},
};
When served on the original machine the start up output is :
App running at:
- Local: http://tstvm01:3030/
- Network: http://tstvm01:3030/
Using the same settings on a VM tstvm07 got me a very similar error to the one the OP describes:
INFO Starting development server...
10% building modules 1/1 modules 0 activeevents.js:183
throw er; // Unhandled 'error' event
^
Error: getaddrinfo EAI_AGAIN
at Object._errnoException (util.js:1022:11)
at errnoException (dns.js:55:15)
at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:92:26)
If it ain't already obvious, changing vue.config.js to read ...
module.exports = {
devServer: {
host: 'tstvm07',
port: 3030,
},
};
... solved the problem.
I started getting this error (different stack trace though) after making a trivial update to my GraphQL API application that is operated inside a docker container. For whatever reason, the container was having difficulty resolving a back-end service being used by the API.
After poking around to see if some change had been made in the docker base image I was building from (node:13-alpine, incidentally), I decided to try the oldest computer science trick of rebooting... I stopped and started the docker container and all went back to normal.
Clearly, this isn't a meaningful solution to the underlying problem - I am merely posting this since it did clear up the issue for me without going too deep down rabbit holes.
I was having this issue on docker-compose. Turns out I forgot to add my custom isolated named network to my service which couldn't be found.
TLDR; Make sure, in your compose file, you have your custom-networks defined on both services that need to talk to each other.
My error looked like this: Error: getaddrinfo EAI_AGAIN minio-service. The error was coming from my server's backend when making a call to the minio-service using the minio-service hostname. This tells me that minio-service's running service, was not reachable by my server's running service. The way I was able to fix this issue is I changed the minio-service in my docker-compose from this:
docker-compose.yml
version: "3.8"
# ...
services:
server:
# ...
networks:
my-network:
# ...
minio-service:
# ... (missing networks: section)
# ...
networks:
my-network:
To include my custom isolated named network, like this:
docker-compose.yml
version: "3.8"
# ...
services:
server:
# ...
networks:
my-network:
# ...
minio-service:
# ...
networks:
my-network:
# ...
# ...
networks:
my-network:
More details on docker-compose networking can be found here.
This is the issue related to hosts file setup.
Add the following line to your hosts file
In Ubuntu: /etc/hosts
127.0.0.1 localhost
In windows: c:\windows\System32\drivers\etc\hosts
127.0.0.1 localhost
In my case the problem was the docker networks ip allocation range, see this post for details
#xerq pointed correctly, here's some more reference
http://www.codingdefined.com/2015/06/nodejs-error-errno-eaiagain.html
i got the same error, i solved it by updating "hosts" file present under this location in windows os
C:\Windows\System32\drivers\etc
Hope it helps!!
In my case, connected to VPN, the error happens when running Ubuntu from inside Windows Terminal but doesn't happen when opening Ubuntu directly from Windows (not from inside the Windows Terminal)
I had a same problem with AWS and Serverless. I tried with eu-central-1 region and it didn't work so I had to change it to us-east-2 for the example.
I was getting this error after I recently added a new network to my docker-compose file.
I initially had these services:
services:
frontend:
depends_on:
- backend
ports:
- 3005:3000
backend:
ports:
- 8005:8000
I decided to add a new network which hosts other services I wanted my frontend service to have access to, so I did this:
networks:
moar:
name: moar-network
attachable: true
services:
frontend:
networks:
- moar
depends_on:
- backend
ports:
- 3005:3000
backend:
ports:
- 8005:8000
Unfortunately, the above made it so that my frontend service was no longer visible on the default network, and only visible in the moar network. This meant that the frontend service could no longer proxy requests to backend, therefore I was getting errors like:
Error occured while trying to proxy to: localhost:3005/graphql/
The solution is to add the default network to the frontend service's network list, like so:
networks:
moar:
name: moar-network
attachable: true
services:
frontend:
networks:
- moar
- default # here
depends_on:
- backend
ports:
- 3005:3000
backend:
ports:
- 8005:8000
Now we're peachy!
One last thing, if you want to see which services are running within a given network, you can use the docker network inspect <network_name> command to do so. This is what helped me discover that the frontend service was not part of the default network anymore.
Enabled Blaze and it still doesn't work?
Most probably you need to set .env from the right path, require('dotenv').config({ path: __dirname + './../.env' }); won't work (or any other path). Simply put the .env file in the functions directory, from which you deploy to Firebase.
We have developed our services using hapi framework in node.js. Recently we found out that there is new version of hapi available for installing via npm install. So we upgraded from 1.20 to 2.1.2. now for every http request that I send to the server I get this error message:
Debug: hapi, internal, implementation, error
TypeError: Uncaught error: Object [object Object] has no method 'reply'
I used to get this message when, as a result of a bug in my code, the service was trying to reply to a request more than once. Apparently, in the second try the reply function of the request object would be missing. But now after upgrading to newer version of hapi, it seems that the problem should be something that I don't understand.
Since Hapi 2.0, the way you handle a route has changed a bit. Now, you have to grab a reply from the parameters in your function:
server.route({
method: 'GET',
path: '/hello',
handler: function (request, reply) {
reply('hello world');
}
});
I think it was already possible before but it wasn't mandatory.
More informations: https://github.com/spumko/hapi/blob/master/docs/Reference.md#reply-interface