Android App Icon Issue -

i made app android using android studio , set icon , put on phone.

the problem in app list icon appears android logos face, when manage app, icon correct, , when on phone @ apk correct.

only on app list incorrect.

what i've checked far is:

right click folder system, new > new > item asset. set application app , image want.

also in androidmanifest.xml i've set the

android:icon="@drawable/ic_launcher" 

and on left, little image appears.

any other idea's appreciated.

thanks

if other info needed please let me know.

android:icon="@drawable/ic_launcher"

instead of ic_launcher put drawable name in manifest