I have the exact same issue as the following: dex file does not contain MainActivity class
Since I cant ask for extra help on that thread I have to recreate one.
My comment:
"I still have the same issue. Its an copy older Cordova project (which I recently updated for one client, without any issues). I renamed the project; changed up some resource files, and now I keep getting the same issue as the initial thread creator. I tried all the suggestions, None seem to work for me. Any clues on what is happening, would I need to change around more then just the name and bundle id's. The main activity is linked to the correct name, but when the APK is build and I go open the apk in android studio, it does not show me the folder for the app 'name' where the mainactivity should be.
I do not have the 'gen' folder. So I cannot remove that, unless these are special folders you can only see at some point?"
Im getting fairly frustrated, I checked all the project files for the build that is not working and a working build [2]. I tried to reproduce the issue with the old build, but that one just seems to work. If I make an exact copy of that build, change up the bundle id's [1]. It just doesnt work.
[1][2]: https://imgur.com/a/WnyJTVD
EDIT: The fix that worked for me was: Changing the bundle ID; I assume that the name contained something ilegal? The thing I changed in the bundle id was: 'com.companyname.cvs' The thing that broke it was the 'cvs'. As soon as I renamed it, and reproduced the steps I did before, it fixed it.
I am using Eclipse to write my Android app and I keep getting this error when running it. I have no idea what the error means or how to go about debugging.
I should add that this all started when I wrote a method to parse an XML file. Before I wrote that, the app worked fine. I tried adding some try/catch block that contain "log.e" statements, but I don't see anything strange in the log.
Does anyone have any idea?
The error message is in the screen shot below:
It means you don't have the source files of the Android code in you eclipse workspace. check
Android source
By default you only have the compiled class files in you android.jar. if you want to see the source(*.java files) you need to add them yourself. So, you have no source files at all by default
I have had this error come up before for a lot of reasons. Almost always it is because I tried to refer to a resource that either is not there, or is incorrectly formatted. Seeing as how this started when you worked with one of your XML files I would check there for incorrect formatting.
Although this error is referring to the fact that you do not have the full android source code, having it will not fix the error, it will only allow you to see where the source code is failing either to find or open your XML file.
I am new to Android development.
I created an Android project, and imported some images as resources.
Unfortunately, one of them contained a capital letter, which is illegal. I have first renamed, then removed the offending image. Then I delete all images, but Eclipse still insists they are there after clicking refresh refreshing and running clean several times.
Could anyone tell me how to fix this?
If the file actually exists in your workspace . Just Right Click the file and select Validate . It should be alright
This is the problem am facing since many days. am trying to manage that but not able to solve that. while am try to access the project which is existing project into workspace then am getting some kind of error at the "#override" tag and when remove that the error disappear and single error will be shown at the application name and that cannot be removed. Am doing for the mean while is try to copy all the code from the each java file and paste it to another project that was created newly.
Can any one help me in this concern. Thanks in advance.
Your problem is related to JDK for this what you have to do is from menu options choose
Window > Preference then navigate to node displayed in below image and set "Compiler compliance level as 1.6"
I added some UI elements to the main.xml file in the res\layout folder and when I try to access them through the call, R.layout.my_uielement, the UI element that I created is not there. Even when I add a new xml file with UI elements, it still doesn't show up in the R.layout class. I have made checked the ids on them and they have the correct format (I think): android:id="#+id/my_button". What could be the problem? Do I need to compile the code first?
UPDATE:
I have already tried adb kill-server then adb start-server. It doesn't seem to help. I have also tried R.id.my_uielement, it doesn't register either.
This may not be the case for you, but sometimes when I use something from the android.R package (default android resources) and I use it in my class before making reference to anything from my own resource package, Eclipse adds the import android.R; statement in my imports. This will conflict with the default behavior of implicitly looking in your package's resources.
Check your import statements for import Android.R;. If it's there, remove it. And, if you're using anything from android.R, fully qualify it when you use it in code.
Clean project works fine. In Eclipse if you just change some xml components, it doesn't always generate a new R file. Cleaning does it.
Use R.id.your_ui_element, not R.layout.your_element
I faced this problem too. The R.java was neither generated nor updated.
If R.java is not generated when you create the project, run your 'empty` project. An R.java with references to resources will be automatically generated.
If R.java is not getting updated, Check for updates in Help -> Check for Updates
in Eclipse and update your SDK and ADT if required.
After 2 days I found a way to fix it...
I had saved half done project in my mail, so when R.java vanished i just replaced it with the old R.java file, this fixed a lot of errors, then made necessary changes and built the project(build it not clean)...I do not know whether clean and build performs the same job or not..but everytime i cleaned it , R.java used to go invisible...
Clean is working because it BUILD the project after cleaning. So the problem is ( at least it was in my case, because I switched off the Automatic Build a few days earlier ) that after you add an item or anything in a .xml file, the eclipse doesn't build it and can't refresh the R.java .
I've noticed that my R.java file is not always being properly updated when I add items to my strings.xml file or elsewhere. If I use a new value I added like R.string.newString the actual integer value might still be pointing to R.string.oldString or whatever (it seems to usually be the element directly above or below the new element in strings.xml but I haven't nailed down the pattern for sure yet).
You're not supposed to modify the R.java file, but it doesn't say anything about deleting it (not that I've seen, anyway). I've found that deleting R.java usually fixes my resource-related problems because Eclipse immediately regenerates the file with the integer values properly assigned.
Please note, I'm very much a beginner at Eclipse so I may not understand the consequences of deleting R.java but it seems to be working well for me so far. If what I'm doing is very bad, please let me know.
None of these worked for me!
The only way i can access an #+id/foo is by myPackage.R.id.foo.