Recently in my Xamarin.Forms solution, inside the Android project, I am getting the following build error:
Invalid resource directory name: "res renderers"
Doing a small amount of investigating I found the culprit inside the obj>Debug>res> folder. I tried deleting the folder and rebuilding but it seems to recreate it every time. I'm not sure why it started doing this and causing the IDE006 warning as well.
Anyone know how to remedy this? Is there a way to configure the Android project to ignore this folder?
I had the same problem and I did the two followings to solve:
try clean/build solution several times (after few times it worked for me)
exit and come back.
I hope this helps.
I had an .axml file inside my Android project that was causing the res/renderers file to be created that contained I suppose a corresponding file. Due to that creation I was getting the error but upon deleting the .axml file in my project, cleaning and rebuilding, the res/renderers folder stopped being created on build. I had that .axml file created before and not cause this error so I'm not completely convinced this is the real answer but it solved my problem and hopefully when I recreate the file it doesn't happen again. Perhaps use of a regular .xml would be better.
This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
R.java disappears after project clean
I am using "Eclipse Indigo" editor. In my android project when I use clean option tool to clean errors present in project then "R.java" present in gen folder is also deleted. I turned ON and OFF eclipse for couple of times,but R.java file is not found in project.
Please help me. Helping hands are highly appreciated.
Possible problem is, In your layouts you got any error, but eclipse isn't pointing it out that error. Please see problems tab near to console if you got any error. And consider going through from this post to know more about why R.java sometimes not generated by Eclipse.
That's normal. The clean process deletes gen and bin files, to be rebuild. Once your project has been cleaned up, they should appear again, unless you have any error in your res files, in which case, the R.java will be unable to be generated.
If the R file is not regenerated during the clean process, this is because your project has some errors (other than the ones generated by the missing R file). Check your project and fix the other errors.
I think you have errors in your XML files - the R.java is generated from xml attributes. Review your code and fix the errors.
I have a primitive sample Android project and I already had that trouble when it could not re-generate R.java (it arbitrarily does or does not, you never know).
At one moment, it re-generated R.java and now it contains all that is expected (my layouts and string values), but Eclipse highlishts source files with red as if it can't resolve something.
R.java has the variable, my class references that variable, Eclipse says it "cannot be resolved or is not a field".
Or course, I tried first to clean the project but this obvious thing did not work. Then I deleted the project from the workspace and re-created it, and everything is the same again.
What can I do now with that to make it work?
Check to make sure you are not accidentally including android.R
Double check all your layouts and xml files , a malformed xml file can cause the R.java to net be recreated.
Can you post your layouts ?
This question already has answers here:
Closed 11 years ago.
Possible Duplicate:
R cannot be resolved - Android error
I am having a issue which I have had before and I don't understand the cause. My project and code is fine as it was running yesterday. I have open Eclipse today and the whole project looks like it contains errors.
I believe it is some sort of build path issue. I don't understand why it randomly occurs? But in the code where there is R.Layout.LayoutName there is an issue... can anyone help?
I have tried cleaning and building it, I have tried importing android.R but I didn't have this before, it then gives and error and says the layout file doesn't exist.
I think I found another solution to this question.
Go to Project > Properties > Java Build Path > tab [Order and Export] > Tick Android Version Checkbox
Then if your workspace does not build automatically…
Properties again > Build Project
Are you targeting the android.R or the one in your own project?
Are you sure your own R.java file is generated? Mistakes in your xml views could cause the R.java not to be generated. Go through your view files and make sure all the xml is right!
I've fixed the problem in my case very easy:
go to Build- Path->Configure Build Path->Order and Export and ensure that <project name>/gen folder is above <project name>/src
After fixing the order the error disappears.
check your R directory ...sometimes if a file name is not all lower case and has special characters you can get this error. Im using eclipse and it only accepts file names a-z0-9_.
You want Clean Project
Like this
click on
Projects>Clean>select your project
this will help to u
Agree it is probably due to a problem in resources that is preventing build of R.Java in gen. In my case a cut n paste had given a duplicate app name in string. Sort the fault, delete gen directory and clean.
Fought the same problem for about an hour. I finally realized that I was referencing some image files in an xml file that I did not yet have in my R.drawable folder. As soon as I copied the files into the folder, the problem went away. You need to make sure you have all the necessary files present.
Save all layouts, and replace them from the previous version. Start to copy one by one and clean the project everytime, sometimes one of the layouts has something, that eclipse doesn't like. It worked for me.
Recently I have been having quite some problems with R.java file. Now I have decided to do a backup and delete the file to see what happens.
Nothing happened, so I created an empty R.java file and hoped for the best. Now Eclipse seems to figure out that the file was tampered with and even issues a warning:
R.java was modified manually! Reverting to generated version!
And that's all there is. I tried building it manually but got no results.
So, I have two questions:
what should I do to force Eclipse to regenerate the file
what is happening here? How is the file created, where is the code that is generating the file?
I would appreciate any help. As usual the problem occurred just a few days before the deadline :)
I had a problem getting my Android app to compile, with seemingly inexplicable errors about failure to generate R.java.
The problem was caused by my previously killing the Android emulator during the build. Don't do that! A clue was the appearance of several left over *.out.xml files.
The solution was to select the project, click Project->Clean, and then manually delete all the *.out.xml files. Only then could I click Run->Run and have a successful build.
One more thing: I'm using Eclipse. I had to make sure that the project was selected in Package Explorer, and not just some random source file. Easy to not notice!
R.java is autogenerated on build. It's content is based on the resource files (including layouts and preferences).
When you deleted it, it was recreated, but if you create your own, you will get into trouble as the build system will not replace it.
You can simply delete it again (manually or by choosing Project->Clean) and rebuild your program.
I had this problem several times, and most of the times it is caused by some mistake in the "res" files, check everything is OK in all your res files, mainly XML, and after you can built.
For example, two common causes of this problem can be:
Didn't properly spell the name of a property in a Style in a XML file.
Didn't properly close a string in the XML of a locale file.
I found the problem - I have created a 9patch image with the patch area defined only on the Y axis (I was trying to prevent resizing on the other one).
The question remains: Why isn't there a warning about the error? Or if there is - where is it buried?
Sorry, but try to check the output in Eclipse. May be you have some errors that prevents Eclipse to finish build proccess(check your AndroidManifest.xml, is it correct?).I mean, that you should check all your resource files(string.xml, layouts, ...) and interfaces(*.aidl), may be there are some problems(inconsistent syntax, or something....) that prevent eclipse to generate R.java.
I had the same issue and it was that I had named a resource file (a .png image) using uppercase letters. (ImageButton001.png instead of imagebutton001.png).
Afther changing the name of the file my R.java came back.
Rgards,
Juan
If there's insufficient free memory the build tool will silently fail (Eclipse will not show any errors or report anything in the error log). Close your other open applications (e.g. the emulator and browser) then add a space to the application manifest file and save it.
As ponkin stated - you probably have one single problem that causes R not to re-generate itself, because of which you now have one million and one problem.
Do not try to create R class yourself. Try to think of the last XML you've been messing with, and check it for errors
I've had the same problem here
Make sure there are no errors is your Manifest file.
If you delete the resource string app_name in /res/values/strings.xml, it doesn't know how to generate R.java right.
I found this a problem when doing the HelloSpinner tutorial.
I found that an unwanted resource was causing an issue. As soon as I deleted the resource R.java was generated.
I've had this problem, to rebuild R.java I cut the code in the xml file I've just been working on (or try others if this doesn't work), deleting the file then creating another with the same name and pasting the code back into it. Hope this helps.
Something that can be good to know is that if an XML file contains a ?, then R.java is not regenerated and the error is not shown in the XML file (sometimes it shows up after a while)
I you have a line similar to:
< string name="questionmark"\>?< /string> <br>
try to change the ? to something else and see what happens to the R.java file - worked for me
I had a similar problem, I had renamed a .wav file in the Raw folder with a capital letter. When I changed to all lower case, cleaned the project and it rebuilt R.java fine.
As others stated, stay away from creating your own R.java file. I ran into the same problem when I first started with Android, and it took some time to figure out what caused by compilation errors.
What were you trying to do with the R.java file?
I had the same problem. I just went to:
Project -> Properties -> Android
and chose the right Emulator for my project, I had 3 different to choose from in that moment. I realized that i changed the Emulator in some given moment. So try to change the Emulator, that might help!
Good luck
I had the same issue with IntelliJ. The problem was that I had app_name defined twice in strings.xml For some reason, IDEA inspections didn't pick this up automatically.
I read this on another site and it helped me:
"If that doesn't fix your problem, try modifying your AndroidManifest.xml (just add a space and save). I've heard that will force the R.java to rebuild. "
So just add a space in the manifest file and then rebuild!
As a side note, usually those *.out.xml files are generated by trying to build your project whilst an xml file is focused in the editor
I had similar problem.Cleaning project didn't solve the issue and there was no error in the code or the uppercase or spaces in file names.
The solution was going to a popup window which came when you choose PROJECT-->CLEAN and then UNcheck the "Start a build immediately" option. Clean the project. Close and reopen Eclipse and then build the project (PROJECT-->BUILD).
The question remains why simple clean and build without closing Eclipse didn't worked.