What packages do I need to install
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Even after reloading the page ?
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The issue is solved but one question is remained! :)
There are two folders on the
SDK Managerwindow, namedToolsandExtras. I was not sure but installed only these 6 items:
And this one can't be uninstalled!

Apart from those I have installed from previous posts here and these ones, do I need to install, for example, more
Android SDK Build-Toolstoo, please? -
AFAIK, only the latest is needed usually.
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I was talking about the build tools. Either there was a glitch when I saw your answer but I didn't had the part about the "Broken Source Package"
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AFAIK, no, you don't need to have every version of the build tools installed.

