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I'm debugging Gradle issues in Android Studio and see references to "Run gradle sync", but I'm not sure how to run this command.

How do I run "Gradle sync" from Android studio or Mac terminal?

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  • 3
    If you came here for the "...or Mac terminal" you are out of luck. None of these answers are about syncing Android Studio itself from command line. Commented Jul 19, 2021 at 20:53
  • See @Cai's answer below Commented Feb 20, 2022 at 11:25

16 Answers 16

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414

Android studio should have this button in the toolbar marked "Sync project with Gradle Files"

Or:

enter image description here

Or on 3.3.1:

enter image description here

Or in Android Studio Hedgehog with the new UI: enter image description here

OR by going to File -> Sync Project with Gradle Files from the menubar.

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10 Comments

missing in Adnroid Studio 3.0.1
@RomanM It's not missing... It moved to "File"... So, it is next to save icon
I don't see that button in the toolbar or File menu in Android Studio 4.
Why this question has so many upvotes if it is not answering OP's question?
The real question is: why do the people in charge of Android Studio keep changing this functionality? It's clearly a case of fixing something that's not broken.
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WARNING: --recompile-scripts command has been deprecated since gradle's version 5.0. To check your gradle version, run gradle -v.

./gradlew --recompile-scripts

it will do a sync without building anything.

Alternatively, with command line in your root project

./gradlew build

It will sync and build your app, and take longer than just a Gradle sync

To see all available gradle task, use ./gradlew tasks

OR USING THE BUTTON

gradle icon sync

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5 Comments

Yes but build does more right? What is the difference between sync and build?
build is a very generic task. it's like using a sledgehammer to crack a nut. On Android projects, running the "build" task could take forever!
I use com.android.tools.build:gradle:3.5.1，and it has no option --recompile-scripts
since gradle 5.0, --recompile-scripts has become an unknow command-line option,
I don't want to build, I only want to sync, I don't understand why Google would deprecate and remove --recompile-scripts without introducing an alternative ...
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In Android Studio 3.3 it is here:

enter image description here

According to the answer https://stackoverflow.com/a/49576954/2914140 in Android Studio 3.1 it is here:

enter image description here

This command is moved to File > Sync Project with Gradle Files.

enter image description here

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6 Comments

ROFL! I have been looking for 2 days for this button! Thanks!
@swooby, you are welcome. I also was finding it for some time, even asked a question, and they helped.
This option appears to no longer exist? i.imgur.com/cNFUoxB.png (screenshot just taken, in Android Studio 3.5.3)
@Venryx, it is strange. I have 3.6.3 and this menu still exists (imgur.com/a/F8FCpvk). Anyway, it is better to use a button in the Toolbar.
It was apparently a problem with some AndroidStudio/Gradle files being outdated. After deleting them and reimporting the project, the option showed up again.
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Keyboard shortcut lovers can add a shortcut for running gradle sync manually by going to File -> Settings -> Keymap -> Plugins -> Android Support -> Sync Project with gradle files (Right click on it to add keyboard shortcut) -> Apply -> OK and you are done. Gradle Sync keyboard shortcutChoose any convenient key as your gradle sync shortcut which doesnot conflict with any other shortcut key, (I have choosen Shift + 5 as my gradle sync key), so next when you want to run gradle sync manually just press this keyboard shortcut key.

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3 Comments

it's 'Android Studio->Preferences' for the first two steps on Mac OS X
+1 the best answer to question
Best answer, No need to find Sync Project icon from similar icons of android studio. Just press Shift+5 and you are done.
14

I presume it is referring to Tools > Android > "Sync Project with Gradle Files" from the Android Studio main menu.

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5 
gradle --recompile-scripts

seems to do a sync without building anything. you can enable automatic building by 

gradle --recompile-scripts --continuous

Please refer the docs for more info:

https://docs.gradle.org/current/userguide/gradle_command_line.html

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2 Comments

Also noted here: docs.gradle.org/current/userguide/upgrading_version_4.html
gradle 5.1.1 do not have option --recompile-scripts
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Without considering UI:

./gradlew --refresh-dependencies

or Considering Android Studio UI synchronization(only macOS):

Osascript -e 'tell application' System Events' to tell process' Android Studio 'to click menu item' Sync Project with Gradle Files' of menu 'File' of menu bar 1'

Make it a gradle task in project's build.gralde file:

tasks.register('GradleSync', Exec) { commandLine 'bash', '-c', 'osascript -e \'tell application "System Events" to tell process "Android Studio" to click menu item "Sync Project with Gradle Files" of menu "File" of menu bar 1\'' }

in the Terminal:

./gradlew GradleSync
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1

Shortcut (Ubuntu, Windows):

Ctrl + F5

Will sync the project with Gradle files.

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1 Comment

on MacOS shortcut is not defined, one should assign it. Described below stackoverflow.com/a/29642935/1839096
1

From terminal:

gradle prepareKotlinBuildScriptModel

NOTE: you can see what android studio is doing by inspecting the "Build" tab. There will be difference windows inside there. One should be "Sync"

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1 Comment

It does something, like downloading the gradle version, but when I open the project in Android Studio afterwards, it still needs to sync.
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I think ./gradlew tasks is same with Android studio sync. Why? I will explain it.

I meet a problem when I test jacoco coverage report. When I run ./gradlew clean :Test:testDebugUnitTest in command line directly , error appear. 

Error opening zip file or JAR manifest missing : build/tmp/expandedArchives/org.jacoco.agent-0.8.2.jar_5bdiis3s7lm1rcnv0gawjjfxc/jacocoagent.jar

However, if I click android studio sync firstly , it runs OK. Because the build/../jacocoagent.jar appear naturally. I dont know why, maybe there is bug in jacoco plugin. Unit I find running .gradlew tasks makes the jar appear as well. So I can get the same result in gralde script.

Besides, gradle --recompile-scripts does not work for the problem.

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1 Comment

Hi Victor, I have a trouble may proof you wrong, Here is what I got, I set a configProductID=11111 from my gradle.properties, from my build.gradle, I add "resValue "string". If I do a build clean from ADT, the resource R.string.ProductID can be generated. Then I can do gradlew assembleDebug to build. Then I change my config name from "ProductID" to "myProductID", I will get error to do 'gradlew tasks', also I can't do 'gradlew clean', all of them just fail. I am still struggling. As ".\gradlew.bat --recompile-scripts " seems no longer exists?
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I have a trouble may proof gradlew clean is not equal to ADT build clean. And Now I am struggling to get it fixed.

Here is what I got: I set a configProductID=11111 from my gradle.properties, from my build.gradle, I add 

resValue "string", "ProductID", configProductID

If I do a build clean from ADT, the resource R.string.ProductID can be generated. Then I can do bellow command successfully.

gradlew assembleDebug

But, as I am trying to setup build server, I don't want help from ADT IDE, so I need to avoid using ADT build clean. Here comes my problem. Now I change my resource name from "ProductID" to "myProductID", I do:

gradlew clean

I get error

PS D:\work\wctposdemo> .\gradlew.bat clean FAILURE: Build failed with an exception. * Where: Build file 'D:\work\wctposdemo\app\build.gradle' * What went wrong: Could not compile build file 'D:\work\wctposdemo\app\build.gradle'. > startup failed: General error during semantic analysis: Unsupported class file major version 57

If I try with:

.\gradlew.bat --recompile-scripts

I just get error of 

Unknown command-line option '--recompile-scripts'.
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2 Comments

I've the same error-message some minutes ago: > Unsupported class file major version 57 The issue for me was, that gradle doesn't work with current openJdk13 on Linux (I use Manjaro... an Arch-Like Linux). So to fix this, I've done this: I've checked which Java version I've installed at my pc, and choosed the version 8: sudo archlinux-java stauts sudo archlinux-java set java-8-openjdk Maybe this helping you out, even If your system seems to be windows. So try another SDK Version. Maybe it also solve your issue.
Hi @suther, many thanks for your reply, I have find the root cause and fixed, I don't think it is because of JAVA version. But as I described "gradlew clean" is not equal to "ADT clean". My fix was simply do "gradlew :app:dependencies", this will generate resource IDs from gradle configuration files.
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The shortcut on Windows is Ctrl + Shift + o

In the main menu it is under File -> Sync Project with Gradle Files

I am using Android Studio Giraffe | 2022.3.1 Patch 2

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0 
gradlew assembleDebug

will sync and download all dependencies when not cached yet, and android studio and intellij idea will follow the thread started by above command

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0

Execute the task gradle :prepareKotlinBuildScriptModel, this is what Android Studio does when you 'Sync' a project if you're using Kotlin DSL for the gradle scrpts In Android Studio Koala(this is what I'm using currently, I don't know about other versions), you can 'Sync' your project using the shortcut Ctr + Shift + O, or navigate to Menu > File > Sync project with Gradle files

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Comments

0

In AS Ladybug | 2024.2.1, on Windows you can press:

Ctrl+Shift+O

Or clicking in the UI gradle button: enter image description here

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Comments

-1

Anyone wants to use command line to sync projects with gradle files, please note:

Since Gradle 5.0,

The --recompile-scripts command-line option has been removed.

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2 Comments

That's great, but how about offering the proper alternative.
Haven't found one, pity

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