Proxy servers: Even though proxy servers are becoming increasingly popular, we saw some cases where Gradle wasn’t syncing on them properly.Installing them solves the issue instantly. Missing files: There might also be missing files which are required to run Gradle.In some cases, it might get corrupt and cause issues in several modules (including Gradle). Bad cache in Android Studio: Android Studio makes use of cache in your computer in order to work properly.Here we can manually try to load Gradle and see if this does the trick for you. Issues in Gradle compiler: There might be cases where your Gradle compiler is not working properly.Bad internet connection: Since Gradle downloads all the missing versions which are required to run your project, it might fail if you don’t have a valid internet connection.Here are some of the causes (each one of them might not be applicable to you): Like mentioned before, there are several reasons as to why your Gradle project might fail to compile or sync. What causes the error message “Gradle Project Sync Failed” in Android Studio?

In this article, we will go through all the causes as to why this issue occurs and then move on to the solutions. You might be facing something as simple as an internet connection to complex issues where your gradle compilation isn’t working. There are many variations in which this error message might occur. Gradle Sync is a Gradle task who’s main function is to check all the dependencies in your adle files which are associated with your Android studio project and then download that specified version (if not downloaded already). Programmers using the IDE Android Studio experience the error message “ Gradle Project Sync Failed” when they are compiling their code or running it on their Android device (either real or emulated).

Android studio 2.2.3 gradle sync failed