[Q] HTC One M8 is not installing 4.16 (Andoid Lollipop) topic

Hey everyone, I need help with this problem I'm having with my HTC One M8. I rooted it, and flashed the Developer Edition Rom on it, but now it wont let me install the new Android Lollipop update. It let me download it fine but when i try to install it, it restarts and starts installing it and gets to like 20% and then a red triangle with an exclamation point in it appears. I flashed the custom recovery before i tried updating. What could be the problem?