asking about android:installLocation on manifest

so i learned the syntax for the installLocation for the android manifest, in the i typed the android:installLocation as an attribute and it has an error, but when i remove the android: part and just leave the install开发者_如何学运维Location everything works out, my minsdk is 7 targeted is 8, i use emulator 2.1 update 1.

i just want to make sure that there is nothing wrong with this, if this is just normal? cause all the syntax sample includes the android: part of the code?

i have screenshots, but new members are not allowed to upload photos apparently.

yes, the thing is that installLocation supports on Android Ver2.2(froyo) and above