I have seen other posts of same kind of error but probably on different vs and windows versions. Tried few things from the posts but nothing worked.
Just created a blank xamarin android app without any code written in it. Did a build, rebuild, clean, restarted system, restarted visual studio, running vs as admin all possible things but nothing worked out.
Below is the message from output window.
2>Done building project "App1.csproj".
2>Build succeeded.
2>An existing connection was forcibly closed by the remote host
2>
2>Deploy failed on Motorola XT1068
========== Build: 1 succeeded, 0 failed, 0 up-to-date, 0 skipped ==========
========== Deploy: 0 succeeded, 1 failed, 0 skipped ==========
I am running Visual Studio 2017 with Version 15.4.0 on Windows 10 operating system.