What is gradle sync in Android Studio? - android
What is it? And what does it do?
I'm working on an enterprise that has a proxy, and it fails trying to connect to somewhere.
Why does it needs internet connection? What ports does it use?
EDIT: The answer of the user Caleb was perfect. I would like to add that the proxy should be configured too in the gradle.properties. Something like this:
systemProp.http.proxyHost=*proxyAddress*
systemProp.http.proxyPort=*portNumber*
systemProp.https.proxyHost=*proxyAddress*
systemProp.https.proxyPort=*portNumber*
What is it? And what does it do?
Gradle sync is a gradle task that looks through all of your dependencies listed in your build.gradle files and tries to download the specified version.
dependencies {
compile '...your dependency...'
}
Why does it needs internet connection? What ports does it use?
It requires an internet connection because it is usually downloading these dependencies from a remote location. You can define what ports it uses by changing your gradle.properties. (see below)
I'm working on an enterprise that has a proxy, and it fails trying to
connect to somewhere.
Your work proxy may be blocking this and you'll need to add your proxy configuration to solve your issues.
Go into:
File-->Settings--> Android Studio Preferences --> Appearance & Behavior / System Settings/ HTTP Proxy
and update your proxy configuration url to your work proxy. (automatic or manual depending on your setup).
NOTE: If you are using the command line to run your gradle build, you will probably need to update the proxy settings via your gradle.properties file.
Global Properties File Location : ~/.gradle/gradle.properties
(or use your local project file if you have one)
Add proxy settings to this file:
HTTPS
systemProp.https.proxyHost=<proxy host>
systemProp.https.proxyPort=<your proxy port>
systemProp.https.nonProxyHosts=<your non-proxy host>
systemProp.https.proxyPassword=<your pw>
HTTP
systemProp.http.proxyHost=<proxy host>
systemProp.http.proxyPort=<your proxy port>
systemProp.http.nonProxyHosts=<your non-proxy host>
systemProp.http.proxyPassword=<your pw>
If you absolutely cannot get an internet connection via gradle you'll need to download the dependencies another way and reference them locally on your computer or local network.
(See this guide for using local jars)
What is it?
I believe it's an IntelliJ/Android Studio term for these Gradle tasks:
dependencies
build
Gradle itself doesn't have "sync" task.
I use the term "believe" since there's no explanation from Gradle/IntelliJ/Android Studio official documentation 😂
And what does it do?
Sync is a phase where the IDE preparing everything, including downloading your dependencies.
When the sync is finished, the user can start coding.
When the sync fails, the IDE is not working properly. The user need to spend time to fix the configuration first.
After Gradle finished syncing, the IDE start another task, like indexing.
Gradle: Build...
Gradle: Configure projects...
Indexing...
I'm working on an enterprise that has a proxy, and it fails trying to connect to somewhere. Why does it needs internet connection? What ports does it use?
Answered above.
Bonus: How to speed up sync
Before opening the project using Android Studio/IntelliJ, open the project using terminal and run the gradle tasks.
cd myproject
./gradlew app:dependencies module:dependencies
./gradlew build
After that, open the project. The sync should be much faster now (since you've downloaded the dependencies in terminal).
It needs internet connection to download dependencies
Related
Android Studio gives error "Could not download builder.jar (com.android.tools.build:builder:3.2.0): No cached version available for offline mode"
I have Android Studio v3.2. Every time I try to build with internet connected, the build process goes on forever. When I try offline it gives me this error: Could not download builder.jar (com.android.tools.build:builder:3.2.0): No cached version available for offline mode So I tries disabling offline mode in Settings > Gradle. Then I get this error: Unknown host 'dl.google.com'. You may need to adjust the proxy settings in Gradle. Enable Gradle 'offline mode' and sync project Learn about configuring HTTP proxies in Gradle So I downloaded Gradle and set Service directory path of Settings>Gradle to manually downloaded directory. Then I get this error: Unknown host 'services.gradle.org'. You may need to adjust the proxy settings in Gradle. Learn about configuring HTTP proxies in Gradle Is there any way I can work offline or I can fix the online problem.
You might need to have internet connectivity to download the maven library dependencies and gradle.
go to FIle==>Setting==>Appearance==>System Settings==>HTTP Proxy Set Auto Proxy click Apply and check the connection. then File==>Sync with gradle files. If it displays an edit proxy dialog ignore it and set "do not display thi dialog again"
Unknown host (my proxy ip). You may need to adjust the proxy settings in Gradle in android studio
I used to run android studio through a proxy, it was called "wall" so I had it configured that way. I upgraded to Android Studio 3.2 and additionally had to stop using it so I am connected to the internet through a proxy free connection. I went to my settings->Appearance&Behaviour->System Settings->HTTP Proxy and set the option to No proxy I search throughout my project for a reference to wall and I couldn't find anything However when I try to build, gradle tries to download a file ( 'https://jcenter.bintray.com/org/jetbrains/kotlin/kotlin-gradle-plugin/1.2.61/kotlin-gradle-plugin-1.2.61.pom' ) which I can download normally through my browser and I get the Unknown host 'wall'. You may need to adjust the proxy settings in Gradle. I tried with a brand new project and get the same. I tried deleting the C:\Users\(username)\.AndroidStudio3.2 folder and again the same message. Can someone please provide me with a solution?
After some hours of searching it seems that the problem was that gradle seems to keep a backup of gradle.options (or I may have done it through an option in android studio) in C:\Users\(username)\.gradle\ so even though I removed all references to my proxy, it still kept those and ignored the gradle.properties file in my project. When I removed the entries to my proxy, it worked fine
Gradle sync failed: Could not connect to server
In my android studio 3.0 i am continuously getting this error - Cannot start internal HTTP server. Git integration, JavaScript debugger and LiveEdit may operate with errors. Please check your firewall settings and restart Android Studio. after this my gradle sync also failed stating the error - Gradle sync failed: Could not connect to server [a3ea2c7d-cc16-4af2-82a9-037277903c02 port:49555, addresses:[/127.0.0.1]]. Tried addresses: [/127.0.0.1]. One thing to note down that this gradle sync failed when it(gradle) is connecting to gradle daemon. i have tried all the options from stack overflow like netsh winsock reset etc. But nothing work for me. Also to mention i do not use embedded JDK in AS. I have provided it my downloaded jdk8. How to solve this problem. Thanks in advance.
Make sure your machine is connected to the internet. Check the link here: Configure Android Studio - Proxy I personally recommend that you try disabling the proxy if it is enabled. Go to Windows Firewall -> Inbound & Outbound Rules -> add java.exe from JDK path & studio.exe from Android Studio directory.
Gradle sync failed: connection time out: consult IDE log for more details
I just installed Android studio 2.3.1, but after starting it is telling me "Grade sync failed: connection time out: connect consult IDE log for more details". Pls I don't know what to do.
Caused by: java.util.zip.ZipException: error in opening zip file This mean that a file that Gradle has downloaded has become corrupted due to somehow or some reason. This might be the download of Gradle itself (which the wrapper does) or any dependency that Gradle has downloaded to run your build. Gradle doesn't attempt to detect or resolve the problem, so you need to fix it manually. The solution is often to purge Gradle's download caches and let it get fresh copies of what it needs. To do that, delete the .gradle directories in both your home directory and in your project's root directory and try building again. In window home directory of gradle is C:\Users\User.gradle In Mac OSX home directory /Users/User_name/.gradle
If you still haven't figured out this problem yet, it's because you literally have no internet connection which is mandatory for gradle building since the platform checks for potential updates for say, sdk versions, from a server. However, if you want to build and do your work offline, then go to File -> Settings -> Build, Execution, Deployment -> Gradle -> Check Offline work under Global Gradle settings
With reference to #DaveNOTDavid's answer, i tried this: Go to File->Settings->Build,Execution,Deployment->Gradle-> and select "Use default gradle wrapper(recommended)". Then sync your project, everything will work fine. But you need an internet connection.
I was facing the same issue while downloading the gradle zip from https://services.gradle.org/distributions/gradle-4.1-all.zip. My issue related to proxy settings, I disabled the proxy & click on Try Again button in build.gradle file.
In my case i activated antivirus it blocks the downloading gradle files turn of your firewall settings
Click on the SDK Manager and click SDK Tools and check if NDK and CMAKE are checked or not. If they are not checked download and install them. And if the problem persists just try it with a stable internet connection with a fast or a moderate speed. It had happened with me also when I was doing it with mobile phone internet then I tried it with a broadband with fast internet.
Basically it's a network issue. if you are working using wifi use vpn that would solve the problem
connection timed out: solution: Just disable your anti-virus for an hour and restart the android studios, in my case my antivirus blocked the connection. while restarting the android studios firewall will ask you the permission, allow it and its all done. The gradle will build successfully
These situations generally occur due to the problem in downloading Gradle components, to overcome this, check your internet proxy and connection properly.
Just try to use some other source internet connection instead of the one you were using while having this error. Like I faced the same problem and I disconnected my system from the wifi and connected it to my personal mobile hotspot. then go to file->Invalidate Caches/ Restart... and your Gradle will build successfully this time.
Android Studio Gradle task stuck
I've installed android studio. It's Gradle process hasn't finish after 2 hours. What should I do for ending this process?
Problem is with your internet connection because of which gradle is failing to resolve the dependencies. make sure you are connected. make sure if you are behind proxy server the proxy settings are entered correctly in your gradle.properties file Here is how you do it: (change the ip and ports to that of your proxy server #systemProp.https.nonProxyHosts=localhost #systemProp.httpp.nonProxyHosts=localhost #systemProp.https.proxyPort=8080 #systemProp.http.proxyHost=10.11.12.13 #systemProp.https.proxyHost=10.11.12.13 #systemProp.http.proxyPort=8080