I don't know why, but Android Studio 3.2.1 display a plugin error continuosly. The error is always related to androidAnnotations.jar, like this:
Android Studio/plugins/android/lib/androidAnnotations.jar!/android/content/annotations.xml: Content is not allowed in prolog.
I've updated to latest version of IDE and SDK but the error hasn't been solved. I tried to invalidate caches, reload the project from repository and resync gradle, disable and enable plugins, etc., but without success.
Any suggestion?
After some test and searchs on internet I've found how to solve this issue. Deleting some cache folders from .android, AS recreates it and problems are gone. I followed the steps from the answer posted by #Levi Rizki Saputra.
When I'm going to start a new project, I take this error from Android Studio
Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.1.4/gradle-3.1.4.pom'.
Enable Gradle 'offline mode' and sync project
I took this problem since updating the Android Studio.
I don't know what's the problem, but I can open the link mentioned in my browser.
I deleted the Android Studio and installed it again and also installed the previous version for many times but it wasn't resolved.
I put the log file here
Unknown host 'jcenter.bintray.com: nodename nor servname provided, or not known'. You may need to adjust the proxy settings in Gradle.
Enable Gradle 'offline mode' and sync project
Learn about configuring HTTP proxies in Gradle
if I do it in offline mode getting different errors
these are my gradle files tried different build tool versions in last few days but non working please help.
I have upgraded android studio from 1.4 to 2.1 and my existing projects couldn't sync with the below gradle error
Error:Connection timed out: connect. If you are behind an HTTP proxy, please configure the proxy settings either in IDE or Gradle.
I am not using any proxy and I have made sure not to use proxy from the android studio IDE. but it keeps on coming with the same error and no idea how to fix this.
I am stack on this and would appreciate any one who could shade some light on this
I have just upgraded (i.e., installed a full new version) my Android Studio from 1.5 to 2.0. The upgrade seemed to go smoothly, but I am having trouble with my project when I open it, when Gradle is syncing my project.
After Gradle sync runs for a couple of minutes I get this error:
Failed to sync Gradle project MyProject
Unknown host 'jcenter.bintray.com'. You may need to adjust the proxy settings in Gradle.
Error: Enable Gradle "offline mode' and sync project
Learn about configuring HTTP proxies in Gradle
So, I click on the link that says:
Enable Gradle "offline mode' and sync project
Then Gradle spins for a second or two, and I now have this message:
Failed to sync Gradle project MyProject
Error: No cached version of com.android.tools.build:gradle:1.3.0 available for offline mode.
Disable Gradle 'offline mode' and sync project
So, I click on this link:
Disable Gradle 'offline mode' and sync project
And I am back to my first error again.
The machine I am working on is 100% off line. It does not have, nor will it ever have any kind of network connection whatsoever. I figure I need to disable some kind of check that requires the internet, but I am not sure what. Is this fixable, or do I have to downgrade back to Android Studio 1.5?
UPDATE
I am also getting this error message:
Gradle sync failed: Unknown host 'services.gradle.org'. You may need to adjust the proxy settings in Gradle.
Ok, I fixed my issue so I wanted to post how I did it in case somebody else runs into this situation.
I was googling around and found a statement regarding working offline with Android Studio that read:
You can, however you won't be able to use any Gradle dependency. Gradle search into the repositories for dependencies using internet, so if you're completely unable to work online. Try not to include anything in the Gradle files, if you do, you'll have to sync it and it'll fail. Bascially just don't touch Gradle files and you'll be good to go.
So, I looked at my gradle files, specifically the build.gradle for the Project (not for the Module). Once there, I noticed a line:
dependencies {
classpath 'com.android.tools.build:gradle:1.3.0'
}
So, I replaced 1.3.0 with 2.0.0 and the project built just fine.
I hope this helps somebody else in the future. Good luck.
I got same problem when I downloaded "BackboneExampleApp" source code from guithub Click Here For Code. I have done following process by watching settings of my old projects and found these errors. I resolved both errors, run my app and got errors to upgrade project and finally when I updated then no more problems exist. Just see pictures for help.
build.gradle (Project:BackboneExampleApp-master)-->
dependencies {
classpath 'com.android.tools.build:gradle:2.3.1'
}
I also come with the same problem in my application. I have Done invalidate caches/restart then the problem is resolved.
I had the same problem as yours. Fortunately, I managed to solve it. You need to go to File >> Settings >> Build, Execution, Deployment >> Build Tools >> Gradle. You need to change the Gradle Home. Mine was "C:/Program Files/Android/Android Studio/gradle/gradle-2.08" and it said the path is invalid. So, just recheck your path in your file explorer and change it. I changed mine to "C:/Program Files/Android/Android Studio/gradle/gradle-2.10".
I had a similar problem. I was trying to build one of the media samples. I tried to use gradle 2.0.0 as you suggested but it didn't work. Got me on the right track though. gradle 2.1.0, along with deactivating offline mode got it to work.
For me it was a connection issue, that I have checked my connection is working in the same second I have enabled and disabled offline Gradle, then Android Studio download the needed files
NB: My Connection was disconnecting and reconnecting many times, so i figured out that this error was caused by the connection specially it was not the same time it takes when trying to sync my Gradle
For those have issues with error message: Learn to configure HTTP settings, below is the solution that worked for me. Am using Android studio 2.3.3:
Go to http://developer.android.com/studio/intro/studio-config.html
Step 1: Follow the instructions on: Set up Android studio proxy.
Step 2: Follow the instructions on : Android plugin for gradle HTTP proxy setting. You will see proxy settings under : # project wide gradle settings, copy the code there and paste it into the empty space in gradle properties file which is under the build gradle in Android studio. Make sure you are connected to internet while on this process. Wait until the the error disappears.
Step 3: you may see another message pop up stating: some folders may have been missing syn now. Just click on syn now.
I hope this help, thanks all.
I was fallen the same trouble, you mentioned. But I solved it myself. I connected my pc to the internet and rebulit the project using PROJECT>>REBUILT PROJECT.
Then some downloads could be seen below with the name of jcenter.......
THEN THE PROBLEM SOLVED...😃
Gradle build became successful..
I faced the same issue. Make sure that you have made an entry in path in environment variable for gradle
C:\Program Files\Android\Android Studio\gradle\gradle-3.2\bin
After disable offline mode and setting the path in environment variables, the issue was fixed and Gradle was build cleanly.
It seems there are multiple reasons for this issue. I fixed it by changing the "Gradle version" and "Android plugin version".
It might be helpful to someone. Go to File->Project Structure. Select Project and update your gradle and android plugin versions.
I also came with the same problem in my application..The application Gradle version is 2.3.3 .I just update the Gradle to 3.0.1 .and the problem is solved.
My problem was different from all answers; gradle distribution url was wrong..
It might be the problem that distributionUrl can be wrong in gradle-wrapper.properties file.