Error building Player: Exception: android (invokation failed)

Hello. I tried to build my project with Android. I have already install the latest version of java, JDK and android-sdk-windows. I got this error:

 Error building Player: Exception: android (invokation failed)
 ERROR: unknown error
 cmd:android list target -c
 stdout;
 
 Usage:
   android [global options] list target [action options]
 
 Global options:
   -v --verbose  Verbose mode: errors, warnings and informational messages are printed.
   -h --help     Help on a specific command.
   -s --silent   Silent mode: only errors are printed out.
 
 Action "list target":
   Lists existing targets.
 Options:
   No options
 stderr:
 Error: Flag '-c' is not valid for 'list target'.

Please can someone help me:( I really need to fix that Thanks in advance!