SDK Manager in Android studio 3.0.1

Question

I download and install android studio 3.0.1 from developer.android.com. but that package did not have any sdk manager. before I had android studio 2.3.1 and I had sdk 25 for that . now I uninstall 2.3.1 and install 3.0.1. which version of SDK I should download for android studio 3.0.1 and how I should install it? I have a picture from my gradle in android studio 3.0:

Answer 1

from file menu open

settings>Appearance & Behaviour>System Settings>Android SDK

click on SDK Tools, check on show package details this will display the details in android SDK Build-tools, you can check "on" 26.0.2 to download it.

make sure you have internet connection, if any problems appears while downloading this package, then you have to be sure that proxy settings is correct if you are using it.

another solution is by trying to build the project with newer build tools that you have already downloaded.