Users using the IDE Android Studio receive the error message “Gradle Project Sync Failed” when they are running their code or compiling it on their Android device (either emulated or real). Gradle Sync is a Gradle task who’s main function is to check all the dependencies in your build.gradle files which are associated with your Android studio project and then download that specified version (if not downloaded already).
There are many variations in which this error message might appear. You might be experiencing something as simple as an internet connection to complex issues where your gradle compilation isn’t working.
In this post, we will show you how to fix Gradle Project Sync Failed in Android studio.
How To Fix Gradle Project Sync Failed in Android studio
Method 1. Checking Internet Connection
Gradle requires that you have a working internet connection on your computer. Because its main job is to download all the required versions from the internet which are missing on your computer, it is mandatory to have a proper internet connection. Also, you check the connection by trying to connect other devices to the same network. Once you are absolutely sure that this isn’t the issuse, you can go to other methods.
Method 2. Disabling Proxy Server
1. Press Windows + R and type “inetcpl.cpl” in the dialogue box and click OK.
2. On the Internet Properties window, go to the Connections tab and then click on LAN settings.
3. Uncheck any proxy servers if enabled.
4. Relaunch the Android Studio and see if this solves the issue.
Method 3. Installing Missing Components
First, you should check if you have some modules missing which are necessary for syncing Gradle. Gradle isn’t standalone itself and it requires other services as well to perform properly.
Now whenever you attempt to sync Gradle and the error message occurs, check if there is any hyperlink underneath the problem with the heading Install missing platform(s) and sync project. After clicking the link, Android Studio will start the download process and install everything which is missing. Try syncing your project now and check if the problem is resolved.
Method 4. Download the latest version of Gradle
Notes: You would have to repeat this method every time you create a new project.
1. Visit this site to download the latest version of Gradle.
2. After downloading, extract all the files to an accessible folder.
3. Launch Android Studio and click File > Settings > Build, Execution, Deployment > Gradle.
4. Here select the option of Local Gradle Distribution. And in the Gradle home, browse to the path where you just extracted the files.
Now try building your project and check if Gradle syncs properly.
Checkout this video to illustrate this guide:
Method 5. Enabling GPU Debugger
The GPU Debugger allows you to analyze and debug OpenGL ES applications. It has several functionalities where it enables you to inspect the GPU state and also understand what caused a rendering outcome. In some Gradle build instances, there is some bug in the system where this is not enabled. In this method, we will force the modules to refresh and install this component.
1. Launch Android Studio and click Tools and then select Android > SDK Manager.
2. Go to the tab of SDK Tools and then unselect the option of Android SDK Build-Tools. After waiting for around 10 seconds, enable the option again.
3. Now, wait a little while until the list is refreshed and items are populated.
4. Once new items are populated, look at the list and check the option of GPU Debugging Tools. Click OK when you are done.
Now, these tools will be downloaded into your Android Studio application and you will be able to sync the Gradle properly without any problems.
Method 6. Refreshing the Cache
In this method, you will refresh the entire cache and after deleting the existing Gradle files, restart Android Studio and check if this fixes the issue.
1. Launch Android Studio and click File and select Invalidate cache/Restart.
2. Wait for process to complete, shut Android Studio down completely.
3. Go to the .gradle folder in your Android Studio installation directory. Now you can either rename it or simply cut/paste it to some other location.
4. Now when Android studio tries to access the Gradle files, it will see that there are none present and it will try at downloading the entire thing again.
5. Relaunch your Android Studio and try Gradle sync again. Now check if the problem is resolved.