Android Studio: Gradle Sync Failed: Could Not Head '...'. Received Status Code 502 from Server: Bad Gateway

Android Studio: Gradle sync failed: Could not HEAD '...'. Received status code 502 from server: Bad Gateway

jcenter is having issues at the moment, please check http://status.bintray.com/

EDIT: it looks like the link above was sunset, new link at: https://status.gradle.com/

jcenter.bintray.com is down Error: 502 Bad Gateway

It's a global outage in JCenter. You can monitor status at https://status.gradle.com. It replaces the bintray status page which seems is now fully sunset and returns a 502 error.

UPDATE Jan 13, 06:35 UTC

JCenter is now back online, and systems are fully operational.

UPDATE Jan 20

Gradle Plugin resolution outage postmortem

https://blog.gradle.org/plugins-jcenter

Following this incident, the Gradle Plugin Portal now uses a JCenter mirror hosted by Gradle instead of JCenter directly. This should shield users from short JCenter outages for libraries that have been cached by the mirror. We saw another short outage of JCenter over the weekend and this did not appear to impact Gradle Plugin Portal users.

Android Studio update 3.1 start getting 502 Gate way gradle dependecies error

Problem is because bintray is down: http://status.bintray.com

Try this: https://stackoverflow.com/a/49510333/1607169

React Native: Android Received status code 502 from server: Bad Gateway from JCenter and Bintray being discontinued

it's a global outage in JCenter. You can monitor status here https://status.gradle.com it replaces bintray status page which seems is now fully sunset and returns 502 error.

UPDATE Jan 13, 06:35 UTC

JCenter is now back online, systems are fully operational.

Could not GET 'play-services-location/maven-metadata.xml'. Received status code 502 from server: Bad Gateway

The problem is that a plugin (location in this case) didn't specify a fixed version of an Android library. So in order to find which versions are available, Gradle must go to the repository to check. In this case, that repository is Bintray, which has been down for days and returning HTTP 502 Bad Request.

The steps below provide a quick and dirty workaround so you can build the app while Bintray is down. A more proper solution would be to fork the plugin and make changes to your fork as suggested by Eldar Miensutov, but it might be a bit overkill for a temporary server error.

1. In the Project tool window (where your files are listed), scroll all the way down until you find Flutter Plugins. If you don't see it, make sure that Project is selected in the dropdown at the top of the Project tool window.
2. Open Flutter plugins, find location-4.0.0 and open it (you might have a different version number after location-, that's fine).
3. Open the file location-4.0.0/android/build.gradle
4. Find the line api 'com.google.android.gms:play-services-location:16.+'
5. Change it to api 'com.google.android.gms:play-services-location:16.0.0'. If your editor says that the file does not belong to your project, select "I want to edit this file anyway".

You should now be able to build the app.

This change is of course a temporary solution, and if you update the location plugin your changes will be overwritten. But at least you'll be able to build until Bintray comes online again (or until you had time to migrate to another more recently updated plugin).

OR

In case the problem is caused by the location plugin and you are able to update to the latest version of it (4.3.0 at the moment), that also seems to resolve the problem. In my case, I was stuck on an old version of Flutter and location because of some other packages that weren't compatible with Flutter 2.

Gradle sync failed: my project after update my Android studio from 3.0.1 to 3.1.0

The problem is on the jcenter side, see http://status.bintray.com

Intermittent download failures
Identified - There is an intermittent download failures due to an issue with CDN provider. CDN provider is investigating the issue.
Mar 17, 21:29 UTC

jcenter 502 bad gateway after gradle refresh

Bin tray is experiencing "intermittent issues" on their download network : https://status.bintray.com/

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