Android appcompat v7 error

Question

Being new to Android developent I followed the simplest of tutorials, built a new android project, accepting all default settings (built it for kitkat). To my dismay I have

Answer 1

Appcompat_7 error solved!

Hi, im a complete beginner, i solved my problem by go to SDK manager update/install all the new android sdk build tools (as im not sure which is which i should update/install so i update/install all the build tools. after updated/installed all the new build tools i closed my eclipse and relaunch the eclipse again. if you see any error again? go to the top bar click PROJECT and choose CLEAN. and run your application again and i think it will work fine..