Errors when including header files

Hello all, and sorry for my bad english.
I trying complite this tutorial https://docs.unrealengine.com/latest/INT/Programming/Tutorials/VariablesTimersEvents/1/index.html. But I get a lot of erros. I just copy-paste code from tutorial. I don’t know why i get this errors, please id need youre help = ). I use UE 4.16.2 and VS Comunity 2017
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