io.socket.SocketIOException: Error while handshaking

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io.socket.SocketIOException: Error while handshaking
at java.net.PlainSocketImpl.read(PlainSocketImpl.java:491)
at java.net.PlainSocketImpl.access$000(PlainSocketImpl.java:46)
at java.net.PlainSocketImpl$PlainSocketInputStream.read(PlainSocketImpl.java:240)
at java.io.InputStream.read(InputStream.java:163)
at java.io.BufferedInputStream.fillbuf(BufferedInputStream.java:142)
at java.io.BufferedInputStream.read(BufferedInputStream.java:227)
at libcore.io.Streams.readAsciiLine(Streams.java:201)
at libcore.net.http.HttpEngine.readResponseHeaders(HttpEngine.java:560)
at libcore.net.http.HttpEngine.readResponse(HttpEngine.java:813)
at libcore.net.http.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:274)
at libcore.net.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:168)
at io.socket.IOConnection.handshake(IOConnection.java:313)
at io.socket.IOConnection.access$600(IOConnection.java:39)
at io.socket.IOConnection$ConnectThread.run(IOConnection.java:199)

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