android – connect App Inventor application to a laptop

I've seen some tutorials on youtube about connecting an Arduino board to a smartphone with BT. That's why I followed the instructions, and these are the blocks I have. The problem I'm facing now is that I can not connect the application to my laptop (I'm trying it on my laptop because I just ordered a hc05 BT module). It always shows me "Error 507: Connection not possible device turned on?", My laptop is paired with my phone and works fine.
Used blocks