error android test installation: No such file or directory

[francof]

ciao to all,
I'm trying to test, with android emulator, the simply "hello world" code.
the app run without error and the emulator is correctly running, I get the message error below:
I saved it for stand-alone app without error.

I got the same error also with other app I tried for testing if it's a problem of "hello word" only or a general one

thanks for help
franco