Error Unable To Open Class File R.java
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Error: Unable to open class file R.java [duplicate] up vote 36 down vote favorite 3 This question already has an answer here: Developing for Android in Eclipse: R.java not regenerating 63 answers 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. java android eclipse r.java-file share|improve this question edited Feb 11 '11 at 17:32 Michael Myers♦ 122k31231267 asked Sep 26 '10 at 3:25 Croydon Dias 63531224 marked as duplicate by Bill the Lizard Jan 28 '14 at 23:25 This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question. if there is an error in one of your resource files the R file doesn't generate. Always something to look for. –schwiz Sep 26 '10 at 22:55 1 It's probably just the refresh behavior of Eclipse. After it has been built, just right click on the project and select Refresh (F5). –Rob Elsner Jan
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up eclipse R.java Unable to open class file up vote 1 down vote favorite I'm getting this error more and http://stackoverflow.com/questions/3796490/error-unable-to-open-class-file-r-java more, and it's getting stickier, harder to flush out. Often, refreshing the project in the explorer view (but not doing the trick now), or poking around with some other things, clears it out. But, I would like to have some definitive way to fix this or to know why this happening and fix the fundamental problem. The message from the console in red: [2011-05-15 00:25:13 - ] ERROR: Unable to open class file http://stackoverflow.com/questions/6002802/eclipse-r-java-unable-to-open-class-file \R.java: No such file or directory Thanks, java android eclipse share|improve this question edited May 14 '11 at 16:11 skaffman 277k63618655 asked May 14 '11 at 15:29 Jahmic 3,93142847 2 THere is not enough information here to help. Please: attach a screenshot, attach a stack trace, and/or open the error log and paste any relevant errors. –Andrew Eisenberg May 14 '11 at 15:30 One thing that often clears these sorts of things out is the Project > Clean thing. It'll rebuild R. If it can't, you'll at least get some more detailed error messages to work off of. –Turnsole May 14 '11 at 16:46 add a comment| 2 Answers 2 active oldest votes up vote 1 down vote accepted Not sure if this is the right way to do this, but this question is essentially a duplicate of this one, with a chock full of helpful suggestions. Strange... thought I set that correctly a while ago... but here it is again share|improve this answer edited Nov 17 '11 at 9:01 answered Jun 15 '11 at 8:29 Jahmic 3,93142847 right link set in above comment. –Jahmic Nov 17 '11 at 9:02 add a comment| up vote 0 down vote Not sure if this is your problem, but sometimes eclipse freaks on m
here for a quick overview of the site Help Center Detailed answers to any questions you might have http://stackoverflow.com/questions/4085959/no-generated-r-java-file-in-my-project Meta Discuss the workings and policies of this site About Us http://stackoverflow.com/questions/10572649/r-java-error-class-file-collision Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, error unable just like you, helping each other. Join them; it only takes a minute: Sign up No generated R.java file in my project [duplicate] up vote 44 down vote favorite 11 This question already has an answer here: Developing for Android in Eclipse: R.java not regenerating 63 answers I am doing the Notepad tutorial, exercise 2. I error unable to started by creating a new Android project and chose Create from source to import the downloaded source files for the excercise. But now I get many errors in Eclipse, and the problem is that there is no generated R.java class. How can I solve this? The folder gen/ is empty. I have errors on Notepadv2.java and in res/layout/note_edit.xml and both seems to be related to the fact that the generated R.java is missing. Here is my import statements in Notepadv2.java: import android.R; import android.app.ListActivity; import android.content.Intent; import android.database.Cursor; import android.os.Bundle; import android.view.ContextMenu; import android.view.ContextMenu.ContextMenuInfo; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.widget.ListView; import android.widget.SimpleCursorAdapter; They are created by the Eclipse command Ctrl+Shift+O. android eclipse adt generated-code r.java-file share|improve this question edited Nov 30 '10 at 12:57 asked Nov 3 '10 at 10:15 Jonas 34.1k69210303 marked as duplicate by Bill the Lizard Jan 28 '14 at 23:26 This question has been asked before and already has an answer. If those answers do not fully address your question
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up R.java error: Class file collision up vote 2 down vote favorite I'm developing an android application, and I keep getting this error: Class file collision: A resource exists with a different case: '/Fit Fray/bin/classes/com/a/ff/act/R$String.class'. I had previously 'fixed' it by playing around with some layout ids, but I then end up with this error: Description Resource Path Location Type Archive for required library: '...' in project '...' cannot be read or is not a valid ZIP file SP-Reversi Build path Build Path Problem I have tried cleaning the project, rebuilding, restarting eclipse and creating a fresh project but it seems to be happening with all the new projects I create. How can I fix it? java android mobile share|improve this question edited Mar 15 '13 at 16:00 ThinkingStiff 48.2k16109206 asked May 13 '12 at 14:48 JD009 244 I have the same problem, did you ever find a solution? –Kevin Sep 10 '13 at 6:47 I know this is an old question. But I eventually went with re-installing any related packages. Not really a solution. –JD009 Aug 10 '14 at 12:41 add a comment| 2 Answers 2 active oldest votes up vote 0 down vote I still have the same error sometimes (after exporting, cleaning or building the app, when creating a new project, or after closing eclipse and opening it again). I found out the error can be resolved by going into R.java and removing the commented lines at the top. Then close the file, it will be regenerated and this can resolve the error. If it doesn't try again. It's really annoying to have to do this all the time, especially since it sometimes takes multiple tries before the error go