setVideoPath parameters should be how to set ah?

According to the code bookvideo.setVideoPath ("/ data/samplevideo.3gp");
Run-time error, suggesting not play,
Said he needed to run
bookadb push c: \ code \ samplevideo.3gp / data/samplevideo.3gp
But I run a mistake, suggesting
'Adb' is not an internal or external command
And / data directory in the end where ah?<-! Main posts under Banner (D4) -><-! Posts under the main text (D5) ->
Reply:
Ditto ah to master oh ~
Reply:
adb is the Android debugging tools you need to configure the environment variables
Reply:
You put a 3gp file to SD card, and then written into the path of the SD card, the data directory refers also SD card data directory, this means that the adb command to move the C drive code 3gp files to the SD card directory The data directory
Reply:
The path you set incorrectly