Replace `uws` with `ws` package
@@ -58,7 +58,7 @@ app.use(morgan('combined', {
// socket io
var io = require('socket.io')(server)
io.engine.ws = new (require('uws').Server)({
io.engine.ws = new (require('ws').Server)({
noServer: true,
perMessageDeflate: false
})
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