Using a Mac and not sure of the SDK path

Unity Engine
,
1

I am trying to build to Android and keep getting the error:

Please make sure android skd path is correct.

I downloaded android studio and have set external tools as per the images attached

any help would be great

thank you

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3203959--245012--Screen Shot 2017-08-31 at 14.59.41.png

2

[Solved]

changed the path to tools and Unity reset it to the SDK and then started working