The selected directory is not a valid home for Android sdk

>sdkmanager platform\;android-27
>I got all exceptions here . What to do  in this case? How to add android sdk ?

Looks like sdkmanager is not comparible with JDK9+ versions which is used when you run the tool. Update your JAVA_HOME to point to JDK 8 and make sure the PATH environment variable has only java binary from JDK 1.8, See https://stackoverflow.com/questions/50987969/cant-run-sdkmanager-bat-error-message-java-home-is-not-set

Apparently as it can be seen below I do not have JDK 8 :

Can I download it from anywhere ?

The Oracle site: https://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html

@Andrey Dernov  :  I downloaded  JDK8 .  And created one system variable  "JAVA_HOME" and one user environment variable with the same name. 

Now I ran the sdkmanager with the following command :

sdkmanager "platform-tools" "platforms;android-28"

This time it seemed like something is happening as I got the following output :



and the license acceptance stuffs . 

Now it asked me to accept  as the following :


Now on pressing "y" and enter I am getting the following :



and after this when I go back to android folder I see a new file called  ".known Packages " present there  as follows :


what to do next ?

Check these threads about the error:

https://stackoverflow.com/questions/43042032/android-studio-fails-to-install-update-error-failed-to-read-or-create-install

https://stackoverflow.com/questions/37951684/android-studio-failed-to-update-sdk-or-sdk-tools/42617940

which usually happens because of permissions. You need to allow your user to read/write to that folder or run cmd as administrator.

Better move Andorid SDK directory to your user home to avoid such issues in future.

Hi  Andrey , your step step help is highly obliging . I am really thankful to you . 

This time it worked well  but after uzipping and all it looks like the following :






The platforms folder has an android28 folder inside which it is a s follows :



I could find skins and templates but could not find the rest of the stuffs in the screenshot attached in the following link :

https://intellij-support.jetbrains.com/hc/en-us/community/posts/360000004650-The-selected-directory-is-not-a-valid-home-for-Android-SDK




Is everything all right , is there naything to do next ?

So what happens when you select the androidstuff directory?

If you get the error make sure the permissions are correct. Try running IDE as administrator or install the SDK into user home directory.

Hi Andrey , Thanks again ..

I ran the IDE as an administrator and provided the androidstuffs directory as the path for android SDK . I got two drop-downs with each having one option , 
one said "Android 1.8"  and the other said target platform  "Android API 28" . 

I selected them and proceeded to get the following : 



So now what's next  ? Was it all that was required for Android Dev using Kotlin ?

This is what was required to set up Android SDK. For Kotlin Android development refer to corresponding guides, e.g. https://developer.android.com/kotlin/

@Andrey  :  Thanks a ton again , Andrey

@Andey : I started the Android project following instructions in the link given by you . 

It asked me to click on "install sdk" for installing any remaining component which are required like the following :



and then I ran the installation . On getting up in  the morning I found that it has gotten stuck at the following :


Has it completed all the installations that are required ?

@Andrey : Moreover , when I have already installed the sdk manually why is it again doing that ?

Make sure to try latest version form https://www.jetbrains.com/idea/download

Attach idea.log after reproducing if problem remains.