Strange Error Nw_Protocol_Get_Quic_Image_Block_Invoke Dlopen Libquic Failed

Why am I getting a strange error : nw_protocol_get_quic_image_block_invoke dlopen libquic failed in SwiftUI?

This is purely a Simulator message. It won't happen on a device, and it doesn't affect the behavior of your app, so just ignore it.

Xcode 12 list won't show up and error 'nw_protocol_get_quic_image_block_invoke dlopen libquic failed'

This error is not related to your request and just console noise. Add NSAppTransportSecurity to your info.plist, add key NSAllowsArbitraryLoads and set it to true. Also, if your app is for Mac, allow outgoing connections in Signing and Capabilites

Got this error: nw_protocol_get_quic_image_block_invoke dlopen libquic failed

There is no need for the wrapping Response type, decode the list of countries directly:

let decoder = JSONDecoder()
let items = try decoder.decode([Country].self, from: data!)

In your code, when you ask in Response for unkeyedContainer, the expected JSON structure would need additional nested array.

Check decoding errors in the catch block with

do {
...
}
catch {
    print(error)
}

No Googlesheets API commands working after updated cocoa pods

Possible duplicate of: stackoverflow.com/questions/64029844/… – Code-bear456 27 secs ago
Trivial answer converted to comment

Socket.IO using Node.js and Swift server not detecting connection? [AWARDING SOON]

The problem is not in your socket.io desktop example.

If you place in the node app's /public/ folder a socket.html file:

<script src="http://localhost:3000/socket.io/socket.io.js"></script>
<script>
  const socket = io();
</script>

And then open: http://localhost:3000/socket.html

You'll see the socket.io server return log:

listening on port 3001
a user connected

I ran:

const app = require('express')();
const server = require('http').createServer(app);
const io = require('socket.io')(server);
const port = process.env.PORT || 3000;


function onConnection(socket){
  console.log('a user connected');
  socket.on('disconnect', onDisconnection);
}

function onDisconnection(socket){
  console.log('a user disconnected');
}

io.on('connection', onConnection);
app.use(require('express').static(__dirname + '/public'));

server.listen(port, () => console.log('listening on port ' + port));

string urlsession response is not handled correctly

welcome to SO and Swift!

Your server is sending "EXIST", but you are checking for EXIST.

IOW, instead of string.elementsEqual("EXIST") == true, try string.elementsEqual("\"EXIST\"") == true.

But don't stop there. Simplify the expression to string == "\"EXIST\"".

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