Android app works on emulator, but not on physical device

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The entire project, including the back-end works perfectly when running on the emulator Android in the Visual Studio, but when I file APK on-mode release and run in my smartphone, only the front-end works, already the back-end doesn’t work.

I honestly don’t know where the problem is, can anyone point me a solution?

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    You would have to give more details/information backend. How is the setup? is a web service? This on the Internet or on the local network?

  • At the moment local, is a chat made with rabbitMQ technology, the visual studio perfectly installed the references, and allowed the use in the project, and works perfectly in Android emulators.

  • There would be no dependencies on other packages for rabbitMQ work on Android? I am layman on the subject, because when I do not do Javascript crio nativ for Windows Phone, and sometimes happens to have to install some dependencies on the device.

  • Usually if rabbitMQ needs something else it displays errors on the Visual Studio console... For example, when you are going to install rabbitMQ in the Xamarin.form port, it does not allow it. Honestly, it’s something interesting, only the front-end works.

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