Sometimes its process is not active (present) in the list of process of Windows (7).
I tried to start it from b4a IDE... nothing. Tried by double-clicking on adb.exe... nothing.
Started it by the old style, DOS window (adb start-server), it starts and it's visible in list of process but anyway I can not connect my devices. If then I restart it from IDE, the process disappears.
All this did not happen before; it happens now, since I installed sw and driver of my new smartphone or since I use the android jar 27.
I tried to start it from b4a IDE... nothing. Tried by double-clicking on adb.exe... nothing.
Started it by the old style, DOS window (adb start-server), it starts and it's visible in list of process but anyway I can not connect my devices. If then I restart it from IDE, the process disappears.
All this did not happen before; it happens now, since I installed sw and driver of my new smartphone or since I use the android jar 27.