Sorry for my stupid question but does anybody let me know how can import synthetic automatically ? Like :

import kotlinx.android.synthetic.main.activity_main.*

Or any shortcut do it by your hand ?

kingvhit: You will have to add

apply plugin: 'kotlin-android-extensions

to your

build.gradle

to make your studio show import options

@akbarsha03 Thanks you for your suggest, I have resolved this problem.

@kingvhit how did you resolve it?