Android Question Error when I run my first "Hello World" app

[ovt001]

Hello everybody.
I start my first "Hello Word" App. I follow all tutos, but when I want to run for the first time my app with the emulator I receice the following message.

java.io.FileNotFoundException: /storage/sdcard/Android/data/b4a.example/files/virtual_assets/layout1.bal: open failed: ENOENT (No such file or directory)

What did I forget?
PS: I just install all the B4A on a new computer.
thank you
O.

 

[Erel]

Avoid using the emulator. It is slow and unreliable. Start with B4A-Bridge connected to a real device.

 

[ovt001]

I use now B4A-Bridge. I see on my device the design mode of mij screen. I can move object, etc..
But I still have the same problem I cannot run my demo App.
How da I have to do that? When I click on "Run' I receive the screen for compile without any error, but happen nothing on my device; I stay in design mode....

 

[klaus]

Are you connected via USB?

 

[ovt001]

No with Wifi (connected on IP address)

 

[ovt001]

OK it's work.
I am very stupid !!! the name of my layout was different that Activity.loadlayout commands
Sorry