I am getting this error while making Simple Flat Dialog

[Aspirers]

Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.EditText.setVisibility(int)' on a null object reference
       at com.example.flatdialoglibrary.dialog.FlatDialog.setLargeTextFieldBorderColor(FlatDialog.java:230)
       at com.example.flatdialoglibrary.dialog.FlatDialog.initDefaultCase(FlatDialog.java:68)
       at com.example.flatdialoglibrary.dialog.FlatDialog.<init>(FlatDialog.java:60)
       at com.zee.whats.scan.web.whatscan.qr.scanner.last_seen.di.AppModule.provideFlatDialog(AppModule.kt:38)
       at

Code

    @Singleton
    @Provides
    fun provideFlatDialog(@ApplicationContext application: Context) = FlatDialog(application).apply {
        setIcon(R.drawable.ic_keyboard_lock)
        setTitle(application.getString(R.string.keyboard_info))
        setTitleColor(Color.parseColor(application.getString(R.string.first_button_text_color)))
        setSubtitle(application.getString(R.string.keyboard_locked_default))
        setSubtitleColor(Color.parseColor(application.getString(R.string.first_button_text_color)))
        setBackgroundColor(Color.parseColor(application.getString(R.string.dialog_background_color)))

//        setFirstTextFieldHint(application.getString(R.string.fine))
        setFirstButtonColor(Color.parseColor(application.getString(R.string.first_button_color)))
        setFirstButtonTextColor(Color.parseColor(application.getString(R.string.first_button_text_color)))
        setFirstButtonText(application.getString(R.string.keep_lock))

//        setSecondTextFieldHint(application.getString(R.string.unlock))
        setSecondButtonColor(Color.parseColor(application.getString(R.string.second_button_color)))
        setSecondButtonTextColor(Color.parseColor(application.getString(R.string.second_button_text_color)))
        setSecondButtonText(application.getString(R.string.unlock))
    }

        flatDialog_.withFirstButtonListner {
            Hawk.put("lock_keyboard", true)
            binding.lockKeyboardIv.visible()
            binding.unlockKeyboardIv.invisible()
            flatDialog.dismiss()
        }
        flatDialog_.withSecondButtonListner {
            Hawk.put("lock_keyboard", false)
            binding.lockKeyboardIv.invisible()
            binding.unlockKeyboardIv.visible()
            flatDialog.dismiss()

        }
        flatDialog_.show()

[sufyan5008]

having same problem