Develop Reference

Error in Eclipse when trying to export apk

I'm trying to export my game apk for publishing to the store, but then I get an error saying 'compilation issues', how do i fix this? I've tried everything, it still doesnt get fixed, and when i go to my project theres a red x over my project, i'm guessing this might be the error, please refer to the screenshot
http://postimg.org/image/osiir584t/

Follow the Steps :
1.Remove Automatic build selection
2.Clean your project
3.Build the project
4.Export the apk

First fix your project's error then you can export it.
Fix your project code(Make sure that don't present any error) that gives compilation error.
Clean your project
Then export for publish your app..

Well, unsurprisingly this means the compiler runs into problems when compiling the release apk. These errors should appear in either the 'Problems' view or one of the consoles (you may need to switch between them). Finding those will help track the actual problem down.
Also, since you mentioned changing package names you may want to check my answer here: Serializing CDT Project settings has encountered a. I'm fairly certain that changing the package name for my project was what caused Eclipse to corrupt my project configuration back then.

Intellij IDEA 14 - Package R does not exist

Well, I recognize that this has been asked before, but in browsing the other answers:
IntelliJ IDEA - Can't build anything, always get "package R does not exist"
Error: java: package R does not exist
etc.
none of the solutions work.
This is for a project that was building fine until at least the last couple days, so whatever is causing the problem must be new.
Symptoms:
Attempting to to a Build > Rebuild Project fails. I see the step for compiling generates sources go by in the status bar, but the next compilation step fails with the dreaded "java: package R does not exist."
R is found just fine in the IDE, so only compilation fails, suggesting there is a problem with the compilation of the generated sources. This seems borne out by the fact that in the out/production/[module] directory, only some resource files show up, no compiled classes, nothing in the "generated" sbupackage, a no apk file.
Interestingly, when I connect my phone to the computer and try running the application on the device, new changes are picked up, so something is being successfully built somewhere.
Things I've tried:
Per the other threads I've tried:
Doing a full rebuild.
Restarting IntelliJ (including with invalidating caches)
Restarting the computer.
Checking that the gen package is included under sources.
Checking for any Excludes (there are none)
Deleting the stub R file and forcing IntelliJ to regenerate it (which it does promptly)
Confirming that there is an Android facet on the module.
Double-checking that the manifest xml file has not changed and that the referenced activity is correct.
Checked that exclude output path is not checked (it's greyed as I'm inheriting from the project compile path, but I tried switching and manually unchecking it... no luck).
The only recent changes in xml were:
A new item in a menu file. I tried removing it to see if somehow that was an issue even though there were no errors reported, but the problem persisted.
I moved a View class to a subpackage of its prior package. That View class is referenced once in a layout xml and I confirmed that the xml was updated with the new package name.
So at this point I'm out of ideas. Sorry to rehash a somewhat common question.

I have the same problem and it definitely related to last update of the IDE. My version is IU-139.1117.1
Before the update Build -> 'Rebuild Project' was working ok in a windows and a mac installation of the IDE. I updated windows first and 'Rebuild Project' shows the error 'Package R does not exist' even for a new Android project. Same error apeared in mac installation imediately after the update. 'Make project', 'Make module' and 'Compile' commands on the Build menu are all working ok with no error only 'Rebuild project' raises the error.
For a new Gradle Android project everything works ok. It seems something is wrong with last update.

It is reported issue in IDEA 14.0.3 (http://youtrack.jetbrains.com/issue/IDEA-135234).
You can try to Compile Module (Ctrl-Shift-F9) for the module that contains missing R file. It works for me (but I have to do this every time i add/remove items in resources).

don't use Rebuild Project, use Make Project and refresh your project,maybe you should try it a few more times.

Try File | Invalidate Caches. This is solve my problem.

If you cannot wait for a officially stable build, install IDEA EAP 14.0.4 (IntelliJ IDEA 14.0.4 EAP build 139.1408, released on February 20th, 2015) from https://confluence.jetbrains.com/display/IDEADEV/IDEA+14+EAP
I've just solved all issues and rebuild project works again.

Solved with the 14.1 update of intelliJ IDEA, available now.

I had the same issue on a Windows 7 box today with a Java 7 Gradle project, using IntelliJ 14.1.5.
The problem was that somehow the classpath was "too long", but IntelliJ gave me only those strange "java: package foo does not exist" compile error's.
The usual tricks (see also above) did not help.
The workaround was to shorten the classpath a bit, in my case setting GRADLE_USER_HOME to c:/.gradle (was before c:/users/myusername/.gradle). After resyncing the gradle project everything worked fine.
The problem was therefor obviously IMO some kind of windows filesystem path length restriction.

Android Studio Gradle error

Everything is ok but when i try to run it gets one error
Gradle: : java.lang.NullPointerException
Please help me, because i wanna to throw all this stuff with my NTB down from the cliff, after about five hours of configuring git, android studio and copying my projects from Eclipse, still got this

I had the same problem. I solved it by going into 'Project Structure' and one of my modules had both 'Android' and 'Android - Gradle'. I deleted the 'Android - Gradle' and rebuilt the project and the error disappeared.
Edit: I had bigger problems than this and ended up creating a new project...

You need to make sure Gradle is installed and properly configured in the preferences.

I had the same problem. It was because the path to android studio contained a whitespace. Installing android studio to the recomended location solved my problem.

As easycheese underlined the problem is related to the presence of the android-gradle item below one or more modules in your project. Go to the "project structure" (from the File menu) and check which module has two sub-items, one of them must be the android-gradle, delete it and rebuild your project. It should fix the issue......as J.Romero says...Android Studio is far from being ready for professional use, but what it is really annoying is that Google, with all its resources, gives developers such "immature tools" that make rather waste time than anything else....shame

I wont re-write my whole answer, but check out the following page in which i replied to a Gradle common error with over 10 common solutions across the web including mine.
Long story short, for me it turned out to be system resources were getting low (Google Chrome was the greedy one)
If it works after a fresh reboot, but after a few minutes or hours it starts.. This would indicate this.
Gradle Error In Android Studio

Android Packaging Problem: resources.ap_ does not exist

I am trying to fix a problem in Eclipse for like 3 hours and I haven't made any progress. Tomorrow is the customer coming to look at my app, and I have no time left. This is really frustrating!
This morning when I was coding and I wanted to run my app on my device Eclipse crashed all of a sudden. 'aapt.exe has stopped working'
After this Eclipse wasn't starting anymore. It froze at the splash image.
I looked on the internet and tried different solutions like going back to Java SE 6 update 20, changing .ini file etc. in the end reinstalling Eclipse did the job.
Shortly after that the 'aapt.exe has stopped working' returned. I found a solution by changing my projects target. 1.5, 1.6, 2.2 doesn't matter, as long as it's different than the one before.
Now I get the Error generating final archive: java.io.FileNotFoundException: C:\xxx\bin\resources.ap_ does not exist error.
I tried clean but that doesn't work. Deleting and automatically regenarting R.java also didn't work.
I ran the same code in Netbeans with the Android plugin and there it gives me the 'aapt.exe has stopped working' again :(
Please guys, how can I fix this?
Edit:
I think I may have found the reason. These are the error lines in the console:
org.xmlpull.v1.XmlPullParserException: Binary XML file line #3: <bitmap> requires a valid src attribute
at android.graphics.drawable.BitmapDrawable.inflate(BitmapDrawable.java:341)
at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:779)
at android.graphics.drawable.Drawable.createFromXml(Drawable.java:720)
at com.android.layoutlib.bridge.ResourceHelper.getDrawable(ResourceHelper.java:150)
at com.android.layoutlib.bridge.BridgeTypedArray.getDrawable(BridgeTypedArray.java:668)
at android.view.View.<init>(View.java:1846)
at android.view.View.<init>(View.java:1795)
at android.view.ViewGroup.<init>(ViewGroup.java:282)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:619)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574)
at org.eclipse.equinox.launcher.Main.run(Main.java:1407)
at org.eclipse.equinox.launcher.Main.main(Main.java:1383)
[2011-01-17 16:37:20 - gegevens.xml] Unable to resolve drawable "com.android.layoutlib.utils.ResourceValue#267e33de" in attribute "background"
The file it's talking about is 'bg.png'. It's a small png file which I repeat in a .xml file.
<?xml version="1.0" encoding="utf-8"?>
<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
android:src="#drawable/bg" android:tileMode="repeat" />
This file has worked from the first time without any problems.
I deleted it from the drawable folder, waited for an error message, and then added it back. The red x next to the foldername got away, but still nothing different...

A shot in the dark, but if it's just the one PNG file could you delete it from the project and add it back? There must be something breaking the resources file.

I just encountered the same error after performing an SDK update withing Eclipse (Indigo). Normally I would either delete the errors and try to rebuild or clean with success, however this time it didn't fix the problem.
Finally I went to the android sdk folder and manually updated. Upon coming back into eclipse I got the error again, but without rebuilding or cleaning I was able to launch the application onto the device by pressing play for a second time.
EDIT:Apparently this problem is intermittent, as I am now once again unable to run on the device, or export the signed apk.
SOLVED: The problem stems from a corruption in the .metadata folder. I discovered this by re-installing Indigo, but when doing so I didn't remove the original workspace folder. The problem of course showed up again. I deleted the .metadata folder completely, which effectively resets all of your eclipse configuration settings. All deployments and signing work flawlessly now. Just had to setup the environment to my liking again, which takes a few minutes as opposed to the hours I spent troubleshooting this.

I just ran into this same problem after importing my project from another machine, but didn't have any errors in the console like the OP. I unchecked Project->Build Automatically and then did Project->Clean and this solved my problem. I was actually missing several files in the bin/ directory for my project and this fixed them all.

I think this error can come up for a variety of reasons. The following solution is only known to be specific to the same error message appearing when using ADT 14 (released yesterday) with build output set to Verbose:
I ran into the same error using Eclipse 3.7 (Indigo) after upgrading to ADT 14 and SDK 14 on all projects including newly created ones. I found a workaround someone posted on the ADT bug tracker, which is basically to switch Eclipse Settings->Android->Build->Build Output from "Verbose" to "Normal". The post is here.

In my scenario, yesterday upon open Eclipse was trying to download updates and I cancelled it since I was using my cellphone hotspot. I tried the metadata folder delete solution mentioned here and didn't work for me. Going to Window->SDK Manager and updating everything seems to be my solution.

I had the same issue in that I added some images into each resource directory and unfortunately named them .png. There were in fact jpegs and the eclipse plugin was flagging this (unbeknown to me in the console)
The issue I found was that if you clear the console then the logging info is lost and it doesn't log anything again!
Changing the extension from .png to .jpg fixed my issue

Above solution didn't worked for me.
The way I did that is updating not only ADT but SDK as well. To do that just go to Android SDK Manager and just download updates.
IT WORKS!

It's very meaningless but changing build mode from verbose to silent did the trick! Nothing else (cleaning project, re-opening , re-installing) did.

Try running clean, but also uncheck build automatically and click "build project" under the "Project" menu. Once you build manually, you can re-check the "build automatically".
I would also shutdown eclispe, and then kill adb
> adb kill-server

Sometimes this error happens when you create ninepatch with wrong black dots/lines. For example right and bottom lines must be solid with no dashes or empty regions.

Try in
windows-> peferences -> android -> Build -> Build Output
Silent
http://code.google.com/p/android/issues/detail?id=20395

In some cases, this error will disappear after fixing upstream errors. In my case that was a version incompatibility in 'fullwebview.xml'.
There, 'layout_width'/height was set to a value not supported in my build target, 2.1. Changing the value to 'fill_parent' solved the issue.

I encountered this same error but then I saw that my layout.xml was not catching an error for a TextView whose android:text="#string/my_unmapped_string string resource was not mapped in strings.xml. So when I viewed the graphical layout it was showing:
Couldn't resolve .....
When I mapped the resource properly and ran the project again, it worked fine and that bin\resources.ap_ does not exist error was gone :)

In my case, it was the file add-icon.175x175-75.png (valid file name, but invalid resource name) copied into res/drawable by mistake. After removing this file, Eclipse did (in April 2015) a few successful builds with incorrect sources, and only then began to behave sensibly, showing me missing resources and malformed XML (I changed the layout).

Conversion to Dalvik format failed with error 1 with javax/net/SocketFactory.class

Encounter this problem when trying to Build Project getting such output in console:
[2010-07-19 23:29:23 - myProject]
trouble processing "javax/net/SocketFactory.class":
[2010-07-19 23:29:23 - myProject]
Attempt to include a core VM class in something other than a core library.
It is likely that you have attempted to include the core library from a desktop
virtual machine into an application, which will most assuredly not work. If
you really intend to build a core library -- which is only appropriate as
part of creating a full virtual machine binary, as opposed to compiling an
application -- then use the "--core-library" option to suppress this error
message. If you go ahead and use "--core-library" but are in fact building
an application, then please be aware that your build will still fail at some
point; you will simply be denied the pleasure of reading this helpful error
message.
[2010-07-19 23:29:23 - myProject] 1 error; aborting
[2010-07-19 23:29:23 - myProject] Conversion to Dalvik format failed with error 1
I was looking for my project to use the package javax, not found, clean all also does not help. what I am doing wrong?
Update
Sorry guys, but I could not find good fix for that, I want to emphasize the fact, that i dont use SocketFactory class in my project at all! source code was not changed before this problem, and that's why i think that problem in eclipse or adt or something else, BUT if i use ant(generated by sdk) to build this project there is no problem!!!
I solve this problem by removing Eclipse, Android SDK, Eclipse workspace, and just reinstall them, after this all works fine for now.
Hope this will help someone.

I had the same problem..
This worked for me
project-->properties->java build path->libraries-> remove all including android jars
now go the project browser, right click on the project you are working on,
then android tools---> fix project properties...
do a clean and then build...

I solved the problem (at least for me).
Here's what I did:
Go to Project » Properties » Java Build Path » Libraries
Remove all except the "Android X.Y" click OK.
Go to Project » Clean » Clean projects selected below » select your project and click OK.
That did the trick for me.
Hope it works for you as well
Update: well actually I might have to retract my opinion.. the actions removed the error messages but now I am missing certain classes and methods... arggghhhh

I just restarted Eclipse, and the error didn't appear anymore!

I had the same problem,and solved it as follows:
First clean all jars; (This problem must because your some jars)
Delete the project;
Reimport project;
Make sure your sdk is right, and project select one sdk version;
(This is my issue to solve the problem) Right click your project, and select "build-path", next select "add Librarys", and add your private jars;
clean-build, the problem has fixed;

I just had the same problem and I tried all of the solutions listed here with no success (I was starting to get annoyed). Then I removed the project from the workspace and then imported it again, and there were no problems!

This happened to me this way,
I have a quite an old project which I had to start working again today. I use 'Universal Image Downloader' library for basically every project where I have to deal with lots of images. So in this old project I had the source files of 'Universal Image Downloader' included to it's 'src' path. Back then I was a newbie and slowly I started developing my own library which could handle every day simple Android development tasks very easily. Obviously I included the 'Universal Image Downloader' to this.
After dusting off the old project today the first thing I did was to reference my library to speed up the development process but as I was trying to debug I ran into the "Conversion to Dalvik format failed with error 1" over and over again. First I thought it was the support library but even after clearing all libraries and adding only mine and doing a quick 'Fix project properties' I still got it. After trying various solutions I noticed this in the console "java.lang.IllegalArgumentException: already added: Lcom/nostra13/universalimageloader/cache/disc/BaseDiscCache;"
It was as simple as that... I'm trying to compile a class which has already been compiled.
Solution : I just simply removed all the class files I got from 'Universal Image Downloader' library from the 'src' directory. Since my library references "Universal Image Downloader" library the old project started working just fine.

Hit same problem shown on your log when trying to run an example project which was imported into eclipse.
Additional Info: in eclipse's Problems View I see the following error:
"The project cannot be built until build path errors are resolved"
In my case the imported project find the libraries just right(by just right I mean I can see the external path to each of the android libs in this case 2 libs, android.jar and maps.jar). So no shuffling of libs in my case, but might be your problem.
I followed Spock's suggestion of cleaning the project which I had to clean multiple times until it somehow resolve its issues. After, issue was solved I had to specify an AVD for the project to run and soon after was up and running on the emulator. Also, note that my eclipse is set up to Build Automatically.
In my case I'm not missing any class files or anything after the clean as the build is properly generating them.
Regards!

I was getting the same error. My problem was that i had an android device hooked up to debug with. As soon as I unplugged it I was able to export.

The answer I found was checking the source and library build path in the project's properties. Most likely there will be a duplicate as in something being referenced in both the source and library tabs. So delete the extra in the source tab and then clean the project and you should be good to go.

Either:
javax.net.SocketLibrary is in your source code, or
javax.net.SocketLibrary is included in a JAR file in your project

Under certain conditions it gets its knickers in a twist and the best fix I've found is to remove referenced jars, clean, add them back in and then compile again.
I believe the error can be caused by including the same classes twice.
This error will also occur (and you won't be able to get rid of it by cleaning) when using classes that are not part of the Android environment.

To summarise the information in the link bimbim.in provided (well my understanding when I glanced over it)
The Android Davik VM tries to compile the jars but finds some stuff that it can't compile to .dex files
so
Just create a "lib" directory in the root of the project (where the src, bin res directories are) and add them to the build path. Project Properties... Java Build Path... Libraries.. Add JARs..

I could resolve this issue by creating a new project, looks like the some project settings were creating this issue and could not really find the root cause for that. But, dumping the existing source code onto the new project resovled this issue. If anyone has found the root cause for this problem pls do let me know.

I had the same problem and solved it as follows:
- Go to Project/Properties/Java Build Path/Libraries and remove all JARs except Android
- Do a project clean
- Add the JARs again as External JARs (first time I added them internally, so that might be the problem)
After that the error was gone.

I solved the problem by updating available packages in the Android SDK et AVD manager. No need to remove Eclipse.

Whenever the Project is having the ambitious data. This problem is caused. May be android can't able to find which one choose.

From what I understand, this same cryptic error could be caused from a wide variety of reasons. I've got "Conversion to Dalvik format failed with error 1" error too. In my case the problem was that for some reason Project -> Properties -> Java Compiler was not set to "Enable project specific settings" with proper Java 1.5 settings, but was left to defaults instead (1.6 in my case). Debug, build and test on devices/emulators worked fine, but export always failed with the above error message.
If unsure about the proper settings, create the same project on some alternative location and just copy all needed files from the old project into the new one. This fixed the issue for me.
The next problem with the same error message came from using proguard. Updating to the latest version by replacing the one that came with android sdk, fixed that.
Hope this helps

My problem was having a jar file in my src folder. Removing jars from the build path works, but only if you don't need the jar in question. For people who need the jar in question, make sure that your jar file is not in the project folder (maybe just src subtree, but I would keep it separate to test). Put it on your desktop or something and try the "Add external jar.." option. Be sure to remove the jar from the project filesystem before adding another external. Having both is what causes the problem.

I have done it as the instruction of the first answer and it works.(Linux)
I think the problem may caused by SDK or ADT updates.
I do have to clear all the lib in Java Building path and then use android tools to fix the project. After cleaning and rebuild, it works as before.