In file included from main.cpp:$6$: ExtendedAVLTree.h:$9$:$18$: error: $$virtual void ExtendedAVLTree::Insert$($int$)$ marked $$override$,$ but does not override $9|$ virtual void Insert$($int key$)$ override $\{|^$~~~~~ ExtendedAVLTree.h:$14$:$18$: error: $$virtual void ExtendedAVLTree::Remove$($int$)$ marked $$override$,$ but does not override $14|$ virtual void Remove$($int key$)$ override $\{|^$~~~~~ ExtendedAVLTree.h: In member function $$virtual void ExtendedAVLTree::Insert$($int$)$: ExtendedAVLTree.h:$10$:$18$: error: $$Insert$$ is not a member of $$AVLTree$10|$ AVLTree::Insert$($key$)$; $|^$~~~~~ ExtendedAVLTree.h: In member function $$virtual void ExtendedAVLTree::Remove$($int$)$: ExtendedAVLTree.h:$15$:$18$: error: $$Remove$$ is not a member of $$AVLTree$15|$ AVLTree::Remove$($key$)$; $|^$~~~~~