the android application is not attaching with SPF

[compactCway]

Select An Option from the Menu:

 1.)  Attach Framework to a Deployed Agent/Create Agent
 2.)  Send Commands to an Agent
 3.)  View Information Gathered
 4.)  Attach Framework to a Mobile Modem
 5.)  Run a remote attack
 6.)  Run a social engineering or client side attack
 7.)  Clear/Create Database
 8.)  Use Metasploit
 9.)  Compile code to run on mobile devices
10.)  Install Stuff
11.)  Use Drozer
 0.)  Exit

spf> 4

Choose a type of modem to attach to:
1.) Search for attached modem
2.) Attach to a smartphone based app
3.) Generate smartphone based app
4.) Copy App to Webserver
5.) Install App via ADB
spf> 2

Connect to a smartphone management app. You will need to supply the phone number,the control key, and the URL path

Phone Number: 15555215558
Control Key: KEYKEY1
App URL Path: /bookspftest1

Phone Number: 15555215558
Control Key: KEYKEY1
URL Path: /bookspftest1
Is this correct?(y/N): y

now from the emulator everything is set and ready but whenever I hit the attach button nothing happens.
the emulator is not getting attached to SPF