java.lang.NoClassDefFoundError: okhttp3.internal.Util >at okhttp3.OkHttpClient.<clinit>(OkHttpClient.java:65) >at okhttp3.OkHttpClient$Builder.<init>(OkHttpClient.java:381)> at>io.socket.engineio.client.transports.WebSocket.doOpen(WebSocket.java:51)

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okhttp3.internal.Util >at okhttp3.OkHttpClient.<clinit>(OkHttpClient.java:65) >at okhttp3.OkHttpClient$Builder.<init>(OkHttpClient.java:381)> at>io.socket.engineio.client.transports.WebSocket.doOpen(WebSocket.java:51)
java.lang.NoClassDefFoundError: okhttp3.internal.Util >at okhttp3.OkHttpClient.<clinit>(OkHttpClient.java:65) >at okhttp3.OkHttpClient$Builder.<init>(OkHttpClient.java:381)> at>io.socket.engineio.client.transports.WebSocket.doOpen(WebSocket.java:51)
at io.socket.engineio.client.Transport$1.run(Transport.java:75)
at io.socket.thread.EventThread.exec(EventThread.java:50)
at io.socket.engineio.client.Transport.open(Transport.java:70)
at io.socket.engineio.client.Socket.probe(Socket.java:458)
at io.socket.engineio.client.Socket.onOpen(Socket.java:471)
at io.socket.engineio.client.Socket.onHandshake(Socket.java:512)
at io.socket.engineio.client.Socket.onPacket(Socket.java:485)
at io.socket.engineio.client.Socket.access$900(Socket.java:30)
at io.socket.engineio.client.Socket$5.call(Socket.java:299)
at io.socket.emitter.Emitter.emit(Emitter.java:117)
at io.socket.engineio.client.Transport.onPacket(Transport.java:127)

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