Android App with Xojo - Connecting fails

I wanted to try out Android app development with Xojo. I have installed the Android SDK and tools, enabled the smartphone accordingly, and installed an emulator in the SDK. However, there seem to be problems with the Xojo connection on both the emulator (see screenshot) and the real smartphone device. Everything runs smoothly at first and compiles, but then when I try to execute, the system hangs after “Run.” In the case of the emulator, the “Connecting to Xoxojo” window appears after Android SDK and EMulator have been started.

Do you have any idea what the problem might be?’

Ulli