I know this question has been asked here a few times before. But i haven't seen any possible solution yet.
Before i make the project 'Run as Android Application' , if i do not clean it, i receive the following error and have to restart Eclipse ... and clean again.
Conversion to Dalvik format failed: Unable to execute dex: Multiple dex files define
Lcom/jstun/core/attribute/MessageAttributeInterface;
com.jstun.core... is a part of my src folder, of course i can't remove it. And even if i remove that package, another package will show up as an error like:
Unable to execute dex: Multiple dex files define
Landroid/support/v4/app/ActivityCompatHoneycomb;
I've seen this error since updating to ADT 15, i'm using Eclipse Galileo on Ubuntu
Do you have any idea? Thanks for any reply!
This is a build path issue.
Make sure your bin folder is not included in your build path.
Right click on your project -> go to properties -> Build Path.
Make sure that Honeycomb library is in your libs/ folder and not in your source folder.
Include the libraries in libs/ individually in the build path.
BTW, you may want to bring in the android-support-v4 library to get Ice Cream Sandwich support instead of the Honeycomb support library.
I have encountered a similar error today and the reason was that the support library was referenced by two library projects used by my app project but with different versions.
In more details:
My app depends on 2 library projects
FaceBookSDK 3.0 -> which is referencing android-support-v4
ActionBarSherlock -> which is referencing android-support-v4 but with a modified version to support maps.
To solve the problem I had to make FaceBookSDK library depend on ABS library instead of the support library directly.
Well for me, I deleted the file in the libs folder called android support v4.jar and it all worked out. Goodluck :)
I had the same error happening and every time I fixed it, it would come back after I restarted Eclipse.
First of all, as other people said, make sure you do not have multiple copies of the same .jar file around your projects.
In my case, I had a main project that used ActionBarSherlock (among other library projects). The trick that worked for me was going into ActionBarSherlock --> Properties --> Java Build path --> Order of Export and unselecting Android Private Libraries. Then going into Project -> Clean and now you should be able to build the project correctly.
Now, for some reason, every time I restart Eclipse, it automatically enables that checkbox, so I have to repeat this process again.
Hope this helps some lost soul out there :)
Go to Project/properties and Java Built Path and unchecked the Android Private Libraries
To me, just go to Project Properties >> Java Build Path >> Order and Export. Uncheck all external library, as the image bellow. It work for me. Hope this help.
I have also faced this problem in my project. AVD is not able to reload assets,lib,res and etc folder contexts.
problem :
Dex Loader] Unable to execute dex: Multiple dex files define Landroid/support/v4/accessibilityservice/AccessibilityServiceInfoCompat$AccessibilityServiceInfoVersionImpl.
Then,I created new projects and copied MainActivity.java,activity_main.xml, drawable context.
Then delete old project from package explore,restart your Eclipse and AVD.
My project is now working properly.... :)
I hope this steps will help u little bit folks..!!
I have same issue, what i tried is:
List item
Open Project Build Path,
Select "Libraries" tab,
Remove all library except the Android Library
Adding all required JARs Files,
And Done!
It works for me, thanks.
If some of you facing this problem with facebook-connent-plugin for phonegap
try to remove files in bin/class/com/facebook/android directory ! -> and rebuild
As others mentioned, this occurs when you have multiple copies of the same class in your build path, or elsewhere in your setup.
I had added android-support-v4.jar to my libs/ folder, and somehow eclipse added a second copy to bin/classes/android-support-v4.jar.
You can test for this with
grep -r YourOffendingClassName YourApp | grep jar
Deleting the extra copy in bin/classes solved the problem - unsure why Eclipse made a copy there.
I got this error for another reason. I was mistaking adding both the v4 AND the v13 support library. This was not necessary for me since my minSdkVersion is 15.
I fixed it by only including the v13 support library. Also, make sure to check mark the library in your exported library build path in eclipse. I also moved it to the top.
Even after going through multiple answers, no solution worked for me.
I deleted "Android Dependencies" from the build path.
Added all the jar files again to the build path and the error was gone.
Somehow eclipse seemed to cache the things.
I'm leaving this answer for someone who gets in this scenario as I did.
I stumbled here and there before noticing that I mistakenly dragged and dropped the Support Library JAR file into my src folder and it was lying there. Since I had no idea how it happened or when I dropped it there, I could never imagine something was wrong there.
I was getting the same error, I found the problem after sometime and removed it. Project is now working fine.
The Solution for me was just to do following things:
->lib directory in your project and delete any multiple elements.
Project->Properties->Java build Path and delete any Dependency Library was added automatically and not by you! ->Apply
Restart Eclipse IDE
Now Clean the project.
Run/Debug on Device/Emulator the project ...
Good Luck
My problem at first was:
Unable to execute dex: java.nio.BufferOverflowException. Check the Eclipse log for stack trace.
1) I Right click on my project -> Android Tools -> Add Support Library
(Run my app...Didn't work so I keep it going...)
2) Right click on my project again -> Properties -> Android -> Check Android 4.1.2 (16) on Project Build Target
(Run the app again...and get this:
Unable to execute dex: Multiple dex files define Landroid/support/v4/app/BackStackState;
3) So I went to the "lib" folder on my project and delete the "old" Android.support.library.jar
(Run the app and cross fingers and...)
¡IT WORKS!
Hope it helps someone...Thanks people!
I have had this issue and that doesn't mean, that the same library is loaded many times but System is trying to load a class with the same name and possibly same package name simultaneously, i.e.
com.pack1.de and Class Geometry of library1.jar
and another
com.pack1.de and Class Geometry of library2.jar.
How should you approach?
You should analyze which methods are being used, a method of library1.jar or library2.
There are 2 Solutions,
Rename a packagename and then dalvik interprets, that they are distinct classes
Or if you want to risk, purge the class, which doesn't contain the methode, which we really use.
I hope that has clarified this often asked question.
I removed Android dependencies from build path and it worked.
This error happened to me when in my app's project I referenced a Library project in my Eclipse workspace (in my case the Facebook SDK) and at the same time included the Facebook SDK as a jar in the libs folder. Removing the library reference but keeping the jar in the libs folder removed the error.
I had same problem. I had to delete the .apk file and then it worked.
For me I deleted android-support-v4.jar from lib folder and also removed from build path.
Right click on project and go to build Path>configuration build path
Select library tab and click on support-v4 library and click on remove
Click on OK
and then clean your project and run it will work :-)
In case anyone else bangs their head on this issue like I just did:
My case involved a chain of library projects. Simply doing a project clean on all of the libraries fixed everything
I found below solution in eclipse...hope it works for you :)
Right click on the Project Name
Select Java Build Path, go to the tab Order and Export
Unchecked your .jar library's
This problem occurs when a same library is added into your project multiple times. If you haven't added the library multiple times intentionaly, check out the dependency/private libraries of the libraries you have added in your project, most probably they have already included a library which is causing this conflict.
I was also struggling to find this is issue. In my case what happened is while copying the apk to email (drag drop) - by mistake the apk was pasted in src folder in one of the packages.
After removing the apk from source folder it worked fine.
I had this problem in Intellij and it was because the ActionBarSherlock library I added to my project defined the android-support-v4.jar as a compile dependency and this jar was already included in my project so there were multiple copies/version of DEX at compile time.
The solution was to change the ActionBarSherlock module dependency for this jar to be Runtime instead of compile, as my project was already providing it.
For me the issue was that, i had added a lib project(autobahn lib) earlier and later switched the to Jar file of the same library.Though i had removed references to the older library project, i was getting this error.
Following all the answers here i checked the build path etc. But i haven't added these libs to build path manually. So i had nothing to remove.
Finally came across this folder.
bin/dexedLibs
I noticed that there were two jar files with the same name corresponding to autobahn Android which was causing the conflict. So i deleted all the jar files in the dexedLibs folder and rebuild the project. That resolved the issue.
To add the myriad of other potential sources... I had updated all the libraries in my project's lib folder but then Eclipse "helpfully" reinstalled all the original libraries. There was no longer any reference inside Eclipse to these libraries but the external dex-maker program just grabbed all the files in the lib directory and thus got two versions of several library .jar files.
git status identified the new files and git clean -f got rid of them for me (though I sometimes had to wait or restart Eclipse on Windows because it still had the files open from the copy).
ULTRA simple solution and finest:
Remove everything in Right Click Main Project's Folder -> Properties -> Java Build Path except Android X.Y (where X.Y is the version in android). Clean, and Build. Done!
Make sure before of that to have a single android-support-v4.jar.
If you are using cordova, try cordova clean command
Okay, so I'm having difficulties implementing this Change log library into my android app in eclipse: https://github.com/gabrielemariotti/changeloglib
I tried using the clone url and importing the library into eclipse and then going into the properties of my android project and adding it as a library but that didn't work. I do not have Maven installed nor do I know anything about it. Is there a way I can just get a jar of this library somewhere? Can someone please help me? Thank you!
Its most likely not setup as an Android Library project and that is why it can't be accessed that way.
You can create the jar yourself though by using: https://stackoverflow.com/a/11289115/1784299 eclipse itself or running the jar command in a terminal. (Eclipse might be a little more user friendly if you don't use the terminal.
I would however highly recommend learning how to incorporate Maven in your projects because it is a huge time saver. If you migrate to Android Studio then Maven will become your best friend.
I answer here to help other devs with the same issue.
The library is built with the Android Studio folder structure.
I highly recommend to use the gradle build system to work.
Hovewer, you can build it locally with Eclipse.
All required steps are described here:
https://github.com/gabrielemariotti/changeloglib/blob/master/doc/BUILD.md#reference-this-project-as-a-library-in-eclipse.
It can be valid for a lot of libraries.
Eclipse uses src and res as source folders. Android Studio instead uses src/main/java and src/main/res as source folders.
So you have to mark the java folder as source (right click on folder -> Build-Path -> use as source folder)
First of all, I realise that similar questions have been posted a lot here. But I've been through all of the answers I can find to similar problems, and nothing has worked yet, so was wondering if someone could help me.
I'm trying to develop a simple chat app with an Android client and a server app sitting running on my laptop. This includes a regular Java "common" project that holds the class that is used to pass messages via the socket.
First I tried to reference the "common" project in the Android project, but after a bit of reading abandoned that idea.
Now I have exported the jar file for the common project, and imported it into my Android project by copying it into the "libs" folder, and then selecting Build Path > Add To Build Path. I have also gone to Properties > Java Build Path > Order and Export and checked the library and moved it to the top of the order.
I have also moved the "gen" project above the "src" one in that build order.
Android Private Libraries is also checked. Everything is checked.
When I debug as an Android Application to my Samsung S3, I see a "Could not find class error" in logcat when advancing to the Activity that contains a reference to a class in the "common" project. Stepping through to the point where a class in the "common" project is referenced then causes a ClassNotFoundException to be thrown.
If I try to put the name of the library in the Android Manifest, like:
<uses-library android:name="com.johndarv.chatproj.common" />
I get:
Installation error: INSTALL_FAILED_MISSING_SHARED_LIBRARY
Please check logcat output for more details.
Launch canceled!
Upon trying to install.
I have the following versions:
Eclipse Standard SDK 2.0.0
Android SDK 22.3
Android project is compiled with Android 4.2.2.
Any help would be much appreciated! If I can give any more info that would be useful, please ask!
The uses-library tag means that your app expects the library to be available on the system. This is to prevent installation on devices which do not have some expected third-party software installed. Consider phone manufacturer who ships his devices with some specific api.
So this is not your case. Forget about this tag this time.
And as to your problem. The jar is not exported into the apk.
Ensure in Project Settings > Java Build Path > Order and Export that the library jar is checked to be exported.
If you put a jar into /libs dir of android project it is automatically added to the build path. You do not need to do this manually (as you did). Then you can see it (this jar) under Android Libraries entry in under Project Settings > Java Build Path > Libraries. This entry is also checked as exported (by default in android project) in Order and Export tab.
Maybe your problm occurs due to the fact that the jar is actually exported twice (once manually and once as private library). Just remove manually added entry from build path. You will have it added once - but to be honest I do not expect this caused the problem. But for sure the problem is in your project settings. Maybe paste a screenshot with Java Build Path > Order and Export and Java Build Path > Libraries.
I managed to solve this by deleting the common project and then creating a new Java project with "Use execution environment" set to Java SE 1.6. And rewriting (copy-pasting) the old classes.
There must have been something wrong with my previous project, and looks like it was the Java version used to compile. I had tried to set the compliance version to 1.6 on the old project. In any case, creating a whole new 1.6 project, pasting the classes in, re-exporting, and copying into my Android project did the trick.
Thanks to everyone who tried to answer this for your help. Hope someone finds the above useful one day!
This question already has answers here:
Developing for Android in Eclipse: R.java not regenerating
(64 answers)
Closed 9 years ago.
Did a fresh install of Eclipse, JDK and android-sdk.
I am currently receiving this error when creating a new project
[2010-09-26 16:07:56 - Test] ERROR: Unable to open class file C:\workspace\Test\gen\com\example\test\R.java: No such file or directory
What's the reason for this and how do I fix it?
Eclipse Helios 32 bit
java version "1.6.0_21"
Android sdk API 8
P.S. I'm new to Android development.
EDIT: I tried most of your solutions, but nothing worked. So I started using my friend's install of Eclipse Ganymede.
I have had same issue, all what I needed to do, was create project and restart eclipse.
//Edit: Complete collapsing of "Package" tree works as well.
This is a mighty annoying error.
It happens 100% of the time when I create a new android project.
What seems to work for me is to just delete the file (which DOES exist and is accessible by my user), then hit build, and it will regenerate it and stop moaning.
It's clearly a bug as there are too many people getting it simply by filling in the boxes in the new project dialog (like me) without even modifying any code!
Have a look at your console. It is an aapt aborted error. Since aapt is the tool that auto-generates R.java, therefore, R.java was not getting generated.
Since R.java is a auto-generated file that stores information about your drawables you should rebuild your project. Before that have a look at your layout xml files and check them for errors.
Notice that Project -> Build All should be selected. Also try to run your project.
Removing Read Only attribute on Eclipse workspace directory and Project->Clean->Build Project
did the trick for me. I then clicked on the project directory from within Eclipse and did a F5 (Refresh) . R.java was generated in the gen folder.
I had a similar error on the creation of new projects myself. After messing around I tried moving the R.Java file into the same location as my projects java file (the src file). Eclipse then saw I removed the R.Java file from its location and created another and that seemed to clean up the error.....I dont know if it was because eclipse rebuilt the file and then saw it or what but that seemed to work for now.
After creating the Project, Right click the Project Folder within the Project Explorer on the Left Tab of Eclipse.
Click on Source->Format.
The Console will say:
[2010-11-24 11:57:42 - YourProject] R.java was modified manually! Reverting to generated version!
Then you're good to go. Try running your Project and it will compile.
Check your imports. If this has sneaked in, then delete it.
import android.R;
Had a almost identical issue with Eclipse Helios 64 bit on Linux, but I had the "1.6.0" API selected like you. The bizarre thing was I could type;
cat <the path it was moaning about>
in a console it would display correctly.
I created a new AVD which used Android 2.1, the issue magically vanished. Perhaps it's a bug in Android SDK or Eclipse?
Right click on your project name in package explorer. Then click 'Validate'. It will be fine.
Here is how to fix it:
Go to your "workspace" folder and make sure it's not "read-only"
Eclipse Menu > Projects > clean
Had the same issue.I was able to solve it by doing the following:
go to Window/Preferences/Java/Build Path
select 'Folders' and change the output folder to 'gen' (this is where Android looks for the generated java files,but the default in eclipse is 'bin').
restart Eclipse
Windows 7,Eclipse 3.5.2
Configure buildpath.. check android , it worked, of course i followed one of the posts mentioned above window, preferences, java, java build path and selected project,
then created a project, and tried to build same error, then i checked build path and saw android is unchecked, checked it and build again, it works!
I had this exact same problem with no helpful errors. finally, I tried deleting my debug keystore and it worked:
rm ~/.android/debug.keystore
I had seen people mention that, but I figured it wasn't my problem because I wasn't getting any errors relating to the debug keystore. I found the answer here:
"Debug certificate expired" error in Eclipse Android plugins
apparently the debug keystore is only valid for one year.
I would say that once you have created your project and you've mention the R.class error --> just restart the Eclipse IDE and everything will be fine ;)
1.-Open Eclipse
2.-Open Window/Preference
3.-Expand JAVA option
4.-Select Build Path
5.-Check the option "Projec"t and uncheck "folder" options
6.-Click on OK
7.-Restart eclipse IDE
Let's go to code !!
This problem can be solved by merely cleaning and rebuilding the project. How ever there is a link to the latest version of Eclipse for Android.
**Eclipse Java EE IDE for Web Developers.
Build id: 20100218-1602
(c) Copyright Eclipse contributors and others 2005, 2009. All rights reserved.
Visit http://www.eclipse.org/webtools**
Here is a link to Android Tutorial with Eclipse
http://developer.android.com/resources/tutorials/hello-world.html
In mac,
I select Project>Clean
after that, i unchecked Build Automatically
then i run the project and it works :)
Windows 7 64bit, run eclipse as administrator, solved the problem for me.
In my case there was no gen folder after pressing clear...
To solve it, i created a new gen file, then when to Build Path => Configure Path, and pressed ok.
All went smooth after that :-)
Following steps are done as solutions:
1. Collapse the project tree structure
2. Go to the workspace and remove the readonly permission of the workspace.
3. right click "default.properties" and go to properties and uncheck the readonly permission in eclipse.( this is done when the workspace shows build error even though there are no compilation issues)