WebSocketException: Connection to 'APIURL:0/socket.io/?EIO=4&transport=websocket#' was not upgraded to websocket

[talha-veroke]

Having this issue, While using this package.

IO.Socket socket = IO.io( APIConfiguration.SocketUrl, OptionBuilder() .setTransports(['websocket']) .disableAutoConnect() .setReconnectionAttempts(2) .setExtraHeaders({ 'access_token': await StorageService().readString(Keys.Auth_Token), }) .build(), ); socket.connect(); socket.onConnect((data) => print('connected')); socket.onConnectError((data) => print('error $data'));

[Abdulah-butt]

getting same issue. Did you get it?

[LeandreBl]

If you really want to access "APIURL:0/socket.io/?EIO=4&transport=websocket#", then you have a problem somewhere, as "0" is not a valid port, it might be the problem here.

[ROD-MASAMI]

i have the same problem i used my server_Url without specifiying any port but the package appended the ':0/socket.io/' how do i remove that i tried specifying the port in my url but it doesnt change

[talha-veroke]

My issue was resolved, it was some configuration issue on server side and our devops team resolved it.