It seams that I missing the R file, this is a common error and usually I have solved by cleaning the projects, using android tools fix project properties and restarting eclipse.
Now I have installed the new android developer tools eclipse and after importing the project I have this error in eclipse:
Errors occurred during the build.
Errors running builder 'Android Pre Compiler' on project 'MyProject'.
java.lang.NullPointerException
and the R file is not generated so it is missing.
The project is a library project. Thanks
Sometimes if you have errors in an XML file, it will stop the project from building correctly and the resources (project.R) file won't be created properly. You will also need to make sure that you are importing your resource file and not the one from android.R
If you've changed the project build target or minSdkVersion, you might have XML nodes in one of your layout files that isn't supported by the SDK you are using which will stop it from building. That's also worth checking
Go to Project and hit Clean. This should regenerate your R.java file.
Also get rid of any import android.R.* statements and then do the clean up as mentioned.
Otherwise, XML resource under layout may not having the correct naming convention or might be having some capital letters.
Try changing them to lowercase and make sure your layout.xml files don't contains errors.
Clean the project because the project may have trouble finding the name of a resources, it really sucks that i constantly have this problem when adding new image..
I recently downloaded the Android Support Package and have been using it trying to get my application, running at SDK 10, to use a GridLayout.
Anyway, I cleaned my project a few times working on this error in my XML files, and then when I went back to my classes in /src, every single reference to R.* was an error.
This has happened to me before, but it usually fixes itself, and it has not yet. Does anyone know what to do?
The R.java file is no longer in my /gen folder.
It sometimes happens when you import another project First i suggest you to build it, it will create automatically .
If it's not working then try to create new project from existing source and specify the downloaded project . It worked for me
Hope this works for you let me know..
Sometimes if there is an error in your XML files R.java won't build. Go through your XML files to make sure that everything is in order (typo, forgetting to close a bracket, etc). When you fix that it should build itself again.
You can also try Adnroid Tools>Fix Project. That may help you to create gen/R.java file
Follow following steps :
In Eclipse,
=> Right Click on Project > Android Tools > Fix Project
By this way, you can fix many common problems which can help generate R.java in gen/R.java file.
There can be several reasons why this occurs. The following I have found happen to me and I have included the steps I took to resolve them.
First step is to try and clean the project (from the Project menu option I believe)
Check there are no errors with your XML files. Sometimes this is obvious from the red 'x' that appears next to an XML filename in the Project exlporer window and sometimes it is not. If it is not obvious check the 'Errors' window (whic is founf in the 'Windows' Menu option
Failing that I have found that by disabling the automatic build option, adding some arbitrary comment to an arbitrary source file, saving the source file, clean the project, remove the comment and then re-selcting automatic build can work too.
Apologies for the approximate locations for some of the Eclipse functions but I am not currently in front of Eclipse to check.
This happens when you have an error in the res folder.
Fix the error first, then do :
Project --> Clean --> Ok
Et voila !
I'm working with Android in Eclipse and was trying to combine code from a template project I found into the skeleton project that Android creates when you start a new project. This is not an initial setup; have gotten several projects running and although I'm new to Android coding I have been working for several weeks without this problem so the environment is set up fine I think.
The error I'm seeing is -
Unparsed aapt error(s)! Check the console for output
At one point I cleared the console messages and now even after closing the project and Eclipse, then reopening I get no console messages and none of my source or resource files are flagged.
What is aapt and where should I look for the source of this error? Thanks in advance for your help.
I sorted this out. So for anyone else still on the learning curve with me, the solultion is as noted in my comment. In addition -
aapt = Android Asset Packaging Tool
From the Developers Guide -
"The Android Asset Packaging Tool (aapt) takes your application resource files, such as the AndroidManifest.xml file and the XML files for your Activities, and compiles them."
The solution for me was simply to delete the error on the 'Problem' window (right click | delete). Then, force a rebuild by rerunning the app. Any remaining problems will now show up and be logged so you can track them down.
Hope this is helpful to others.
This happened for me when I accidentally attempted to "run" an Android XML layout file. It created a file with the layout name and _out.xml appended. I needed to delete that file before I could perform any further builds.
This is what I did using Eclipse ADT, and that error disappeared:
Window > Preferences > Android > DDMS > Base local debugger port: 8600
I changed the value from 8600 to something else, example: 9999
Finally, I went to Project > Clean... > Clean all projects > OK
The error disappeared.
May occur when the project is created (New Android) and Fields: minimum required SDK, Target SDK, compile with and Theme are not filled in correctly.
My android project gives and error but non of my classes have one. The error is "Conversion to Dalvik format failed with error 1". The problem is that it was working properly yesterday without any errors. Why my eclipse gives this error? Is she angry or something because I was trying to cheat her with NetBeans?
Any answers would be nice. Thanks in advance.
Funny bug.
Clean, refresh and try to export again. If that fails repeat a couple of times.
Make sure that the included jars/libraries or similar doesn't have an error in them. Mine had the other day since somehow eclipse automatically changed the import to import android.R instead of my R file.
Usually fixed by cleaning the project and retrying, sometimes though I have to copy a to a new project or even restart eclipse.
I had the same problem and cleaning multiple times didn't work.
I fixed it by removing and re-adding the library project in the application project.
Project > Properties > Android > remove libraries > Apply > add libraries again > OK
For jars, I don't know, but a similar solution might be possible...
Project > Properties > Java Build Path > Libraries tab > remove jars > OK > reopen to Libraries tab > re-add jars > OK
Of course, that's not really possible if you aren't using any libraries, but in my case that's what did the trick.
Compile Error:
Error generating final archive: java.io.FileNotFoundException: ..\bin\resources.ap_ does not exist.
Compile other simple sample works.
Same source file and project works on my college's machine.
Any tips ? Why resources.ap_ doesn't get generated ?
Did you do a Project > Clean? If that doesn't work, try forcing Eclipse to build the project again. Restart Eclipse if that still doesn't work.
I created an empty text file under C:\Users\me\workspace\project\bin\resources.ap_
Then Cleaned/Rebuild... that seemed to fix it.
In my case was a 9 patch drawable that was modified with GIMP, then adb cannot "parse" it, recreated with the draw9patch then worked fine
I was getting both the error in this thread and the one in this post: Android Unknown Command 'crunch'.
Updating the Android SDK inside Eclipse fixed both errors for me.
If you delete the whole "gen" folder, then go to Project>Build All it seems to regenerate the folder and the R.java file
Finally i found the reason. The update aapt tool treat the format string without order as build error. e.g. "%s %d" should be "%1$s %2$d".
I got this along with an error when the "aapt.exe" update tool was run.
There's apparently a bug in this program when the console build output is set to "Verbose". Changing it to "Normal" fixed it for me.
See this link:
aapt.exe is throwing unhandled exception while building *.apk file for Android project in Eclipse
Try going to Window->Android SDK manager and update Tools and Android 4.0. This solved my issues.
If that doesnt work, try updating everything.
That totally worked for me!
Reference: Error generating final archive: java.io.FileNotFoundException: xxx\bin\resources.ap_ does not exist
Delete bin and gen directories from system. Then F5 in eclipse.
This helped me. Nothing else worked for me.
For me, it was turning off Instant Run.
Preferences -> Build, Execution, Deployment -> Instant Run -> uncheck "Enable Instant Run to hot..."
Also, I heared killing a goat and draw a pentagram on the office floor with its warm blood helps prevent these kind of problems.
i tried the Notepad Tutorial Exercise 2 and got the same error.
i used the wrong API-Level (3). i just switched to level 8 and now it's working fine.
This problem occurred for me after eclipse did some updates. I just went to a backup of my project and took the file that and placed it in the appropriate place in my current project and all worked.
Goto file->Properties and change the target to the correct version of android. For me it was 1.5 (from the tutorial on hack-a-day)
AndroidManifest.xml displayed within Eclipse was out of sync with what was on disk/being read by Android. shutdown restart eclipse and edit AndroidManifest.xml to be correct and clean and build.
Happens due to having two AndroidManifest.xml files and renaming them. Two useful if two apps from same code base. Linking projects with Android is problematic.
I had both values and values-en folders and it was picking the string from the values-en folder. I deleted the en folder and it was back to normal.
I tried
Clean
Delete gen
restart eclipse
Here are a few of the things I did that made this finally work for me.
1) I was using Admob ads, and I didn't have an attrs.xml file in my res/values folder
2) I deleted a line that says "import andriod.R" from my main activity, and all my resources connected again and this ultimately made the error go away.
3) The last thing I had wrong is I had a "lib" folder instead of a "libs" folder that held my Admob jar file.
Lastly, I cleaned the project after these changes.
So, hopefully this helps someone else having this same error if none of the above fix the problem.
I had the same problem and after digging around the different output Eclipse provides discovered that the issue had to do with a malformed 9-patch image.
I discovered the issue in the Problems output (Alt-Shift-Q then X).
I had the same error message and it was caused by having a backslash character in one of my string resource values (in the file: res/values/strings.xml).
I had to remove the offending character and clean the project before it would build.
1 - Try Project > Clean and rebuild project
2 - If clean does not solve this issue, check ALL log in your Console view in Eclipse.
The issue may not be reported at the end of the Console view. In my case, it was a drawable that does not respect the 9-patch format. This was reported somewhere in the Console view but not at the end !!!
Delete any 9 patch drawables created in gimp and refresh.
Delete bin and gen on filesystem.
Refresh (F5) project in Eclipse.
I faced the same issue. And I fixed it by removing newly added png file. It was not able to generate resources.ap file because of one of my png file in drawable.
I got this problem after the upgrade to Android SDK Tools 15. It was also related to the PNG image as some other replies indicate. After analyzing the Eclipse Console output I found out that the process aapt.exe is crashing while processing of one of the images. More precisely it was in the step labeled as "Including resources from package". To identify the file causing the problem I scanned the Console output, found 3 calls of aapt.exe and each of them I re-ran in the Windows Console. The third one ("aapt.exe package -v -S ...") crashed on one of my PNG files. After I replaced this file (in all supported resolutions) the problem has gone.
If you use SurfaceView and have recently changed the name of the package, you might want to check any XML tags that refer to the class.
first try
clean,build automatically from eclipse
and if not resolved then try uder solution
i found solution why R.class not made by eclipse after making again-2 clean,build etc.
problem is here in strings.xml:
Hello World, HelloAutoComplete!
HelloAutoComplete these are by default created by the eclipse when you create an projects
definitly you are changing the strings.xml for your own requirment sometimes you cleare the string.xmls these two lines from your codes.
it is making problem in AndroidManifest.xml file
so it cant communicating strings.xml
dont delete these two lines from strings.xml
android:icon="#drawable/icon" android:label="#string/app_name"
android:name=".HelloAutoComplete"
android:label="#string/app_name"
regards aarifmohammadkhan#gmail.com
if any one have nay problem in android
welcome for asking questions
Regards
aarifmkhan
You might need to remove extra files from your assets or res directory. One case I had was having both "A.jpg" and "A.JPG" files in the assets directory. It prevented the resources.ap_ file from being generated.
For Android studio, if you are using gradle 2.2.2 just disable shrinkResources into build.gradle file:
shrinkResources false
Try run your Eclipse as administrator.