Follow Camera not working in 2017.4.3f1

I made in my project the same steps as in tutorial no.1
Delete / reimport / redo / read other stuff and so on
The cameras are working and blending but the 2nd one is not following Adam
I tried many settings on the 2nd camera (the follow one and nothing worked).
It seems like the follow behaviour is not present ...

What can I do ?

 

I must also say that i Main camera Inspector I do not see the PostProcessing even if I imported it.

 

thank you for your help but:
- i do not have that import in my menu
- i do not see any extensions on my menu - i use windows

the camera is not following becasue of the postprocessing missing ?

i also must tell you that when i import this: https://assetstore.unity.com/packages/essentials/post-processing-stack-83912

i have this error: http://myprintscreen.com/s/tifl/b4c42e2133

and i always hit i made a backup ... still nothing good happens
(i now moved the dir to cinemachine directory and nothing still)

should i try put this instead ?
https://github.com/Unity-Technologies/PostProcessing

delete the old directory or not necessary ?

 

"Follow Camera not working in 2017.4.3f1" -- see title
I will try now what you told me and be right back

 

The postprocessing still not showing but the Cinemachine examples are working as they should.

I am not great programmer but I can understand hierachies, assets, editors.
I used the assets from the ClearShot character scene.
I did this and it partially works:
1. exported the char as object and then imported in my scene
2. coppied the cameras and the doly
result: character moves as expected with a follow camera in his back
the changing of cameras is not happening so i must work on the hotspot / trigger for it

as for the moment i have a camera working to play with it's all good
i must study more the behaviours of the axes and of the rigs
i must say that a video tutorial for beginners would help a lot to understand how to play with all those values

thank you for the cinema feel!

 

I have one problem though on moving. First steps the char is moving corectly with wasd but after few small rotations with the cursor, the wasd directions change behaviour. I took out the invert axis setting becasue it was not working from the start. I will test some more but if it is a common issue needs some specific settings please tell.
LE: your 3rd person char moves ok in my enviroment too so it clear my char. I must check closely why and if one of the reason is that 3rd person char does not have back movement but slowly moving.

If you have a guide how to make the cursor changing smoother and slower the camera it would greately help (played with some axis values and it works better )

 

one more question: can i make the same following camera zoom in or i must do another camera for this ?