Android studio error: An error occurred while trying to compute required packages

I'm trying to install the latest Android Studio on a MacBook pro 2015

Unfortunately I get this error:

An error occurred while trying to compute required packages.

Here a screenshot of the error:

which is not very informative. What's causing the problem?

EDIT

This is the exception I get when I run the application from the terminal:

[  33666]   WARN - e.wizard.InstallComponentsPath - Dependant package with key emulator not found! 
com.android.tools.idea.sdk.wizard.SdkQuickfixUtils$PackageResolutionException: Dependant package with key emulator not found!
    at com.android.tools.idea.sdk.wizard.SdkQuickfixUtils.resolve(SdkQuickfixUtils.java:261)
    at com.android.tools.idea.welcome.install.ComponentInstaller.getPackagesToInstall(ComponentInstaller.java:51)
    at com.android.tools.idea.welcome.wizard.InstallComponentsPath.lambda$init$0(InstallComponentsPath.java:195)
    at com.android.tools.idea.welcome.wizard.InstallSummaryStep.generateSummary(InstallSummaryStep.java:115)
    at com.android.tools.idea.welcome.wizard.InstallSummaryStep.onEnterStep(InstallSummaryStep.java:106)
    at com.android.tools.idea.wizard.dynamic.DynamicWizardPath.next(DynamicWizardPath.java:311)
    at com.android.tools.idea.wizard.dynamic.DynamicWizardPath.next(DynamicWizardPath.java:58)
    at com.android.tools.idea.wizard.dynamic.DynamicWizard.showNextStep(DynamicWizard.java:346)
    at com.android.tools.idea.wizard.dynamic.DynamicWizard.doNextAction(DynamicWizard.java:336)
    at com.android.tools.idea.welcome.wizard.FirstRunWizardHost$NextAction.actionPerformed(FirstRunWizardHost.java:385)
    at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
    at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348)
    at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
    at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
    at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
    at java.awt.Component.processMouseEvent(Component.java:6533)
    at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
    at java.awt.Component.processEvent(Component.java:6298)
    at java.awt.Container.processEvent(Container.java:2236)
    at java.awt.Component.dispatchEventImpl(Component.java:4889)
    at java.awt.Container.dispatchEventImpl(Container.java:2294)
    at java.awt.Component.dispatchEvent(Component.java:4711)
    at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4888)
    at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4525)
    at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4466)
    at java.awt.Container.dispatchEventImpl(Container.java:2280)
    at java.awt.Window.dispatchEventImpl(Window.java:2746)
    at java.awt.Component.dispatchEvent(Component.java:4711)
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
    at java.awt.EventQueue.access$500(EventQueue.java:97)
    at java.awt.EventQueue$3.run(EventQueue.java:709)
    at java.awt.EventQueue$3.run(EventQueue.java:703)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
    at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:90)
    at java.awt.EventQueue$4.run(EventQueue.java:731)
    at java.awt.EventQueue$4.run(EventQueue.java:729)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
    at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.java:795)
    at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:627)
    at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:387)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

EDIT

Google has fixed the bug. Just download the new installer and everything should be fine

Update:

There's a manual workaround!

As per post https://stackoverflow.com/a/42733510/7694425 :

1. Download the command line tools, place them in the SDK folder (e.g., on mac: /Users/user/Library/Android/sdk), and then add the bin folder to the PATH.
2. Install the latest platform: in a terminal, execute sdkmanager "platforms;android-25"
3. Open Android Studio, and go to the SDK Manager (Appearance and Behavior > System Settings > Android SDK)
4. Click on "Edit", and then select the sdk folder. Then "Next" > "Next" > "Finish".

Still, it doesn't resolve the missing emulator package therefore the Android SDK tools can't be updated since it's a dependency. But Android studio works and you can download other packages.

Looking forward to a better solution.

Update 2:

Solution to emulator package issue!

After digging in the repo's XML for a while I've spotted the issue.

It turns out that the "emulator" package is only in channel 3 (canary) while the "tools" package is in channel 0 (stable) but depends on "emulator". The solution is to force the manager to download the "emulator" package from channel 3:

./sdkmanager --channel=3 emulator

Problem solved!

Previous answer:

The same problem here.

Twitted @androidstudio too. Hopefully someone in a position to fix this will notice.