Java issues when creating new binding

Hi All

i want to create a new Binding for openhab

Im a windows 10 user
i have installed Git, maven, eclipse and java ofcourse. also the openhab addons via dei eclipse installer.
I have created a new binding with the skeleton script.

when I what to start to debug this clean and empty binding I get alot of java problems. like Im missing an include or something.

did I missed a step ?

thx for the help !

What exactly does „a lot of problems“ mean? Please post the exact error messages. Thanks.