I am not completely sure what caused this to happen. Possibly it was because I got a number of updated from the SDK manager. But I opened my development environment and every line appears as an error.

Here is a screenshot:

![enter image description here](https://i.stack.imgur.com/umDkr.png)

Would anyone know how to debug this? I tried cleaning and restarting computer/Eclipse. That didn't help. Also it looks like everything is mis-configured now. Would anyone know where to even start debugging this issue?

Thank you!

Screen shot of my project properties:

![enter image description here](https://i.stack.imgur.com/wc4dq.png)