android - Application requires a device running 'N' -

i'm trying test app against android n using eclipse. getting error, application requires device running 'n' when try debug it.

i have created emulator android device running android n. here's console log:

[ttb] android launch! [ttb] adb running normally. [ttb] performing com.mycompany.myapp.mainactivitybasic activity launch [ttb] launching new emulator virtual device 'androidn' [emulator] hax enabled [emulator] hax ram_size 0x80000000 [emulator] hax working , emulator runs in fast virt mode. [emulator] console on port 5554, adb on port 5555 [ttb] new emulator found: emulator-5554 [ttb] waiting home ('android.process.acore') launched... [ttb] error: application requires device running 'n'! [ttb] launch canceled! 

here's snippet manifest:

    <uses-sdk     android:minsdkversion="n"     android:targetsdkversion="23" /> 

any thoughts on wrong? thanks