Add-platform android in cordova

Hello everyone
I’m trying to set up mobile development with Meteor.
everything is OK for the ios platform
But when I try meteor add-android platform, I have the following error:

Your system does not yet seem to fulfill all requirements to build apps for Android.
Please follow the installation instructions in the mobile guide:
Status of the individual requirements:        
✓ Java JDK                                    
✓ Android SDK                                 
✗ Android target: avdmanager: Command failed with exit code 1 Error output:
  Exception in thread "main" java.lang.UnsupportedClassVersionError: com/android/sdklib/tool/AvdManagerCli : Unsupported major.minor version 52.0
  at java.lang.ClassLoader.defineClass1(Native Method)
  at java.lang.ClassLoader.defineClassCond(
  at java.lang.ClassLoader.defineClass(
  at Method)
  at java.lang.ClassLoader.loadClass(
  at sun.misc.Launcher$AppClassLoader.loadClass(
  at java.lang.ClassLoader.loadClass(
✓ Gradle                                      

Can not find a solution that works on the net.
Can someone help me?
Thank you

I answer myself …
I created an application in Android Studio, as simple as possible and I compiled it. This has downloaded another version of the sdk.
I tried again to do ‘meteor run android’ and miracle it works !!!