ScrollView not able to scroll at all

I have looked through similar questions and not looking for generalize answer but rather want to know why my below code is not working. I am generating rest of the child inside LinearLayout programmatically. Only issue is that it is not scrolling. Please find below code for bottom most card. <ScrollView android:layout_width=”match_parent” android:layout_height=”wrap_content” app:layout_constraintTop_toBottomOf=”@+id/card2″ tools:layout_editor_absoluteX=”1dp”…

How do I find, remove, and reinstall my printer and scanner drivers?

After initial OS installation everything was working fine except the scanner. I attempted to install scanner drivers for a Canon Pixima TS3120 and not only failed but somehow messed up the previous printing functionality. Also, my app centre is failing to fetch updates now. Picture of error box The error reads: E: The repository ‘http://ppa.launchpad.net/michael-gruz/canon/ubuntu…