R file is missing android

Question

i was using Eclipse Helios but due to performance issues i changed to Eclipse Galileo and installed the ADT plugging, and added my sdk folder to Elcipse Preferences. Now R.j

Answer 1

In my experience there is a mistake in the xml somewhere. Eclipse will no doubt tell you where. After I fix the error R appears.

Answer 2

Hi I had this happen to me this weekend.

The actual reason this had happened was that I had unchecked the update option for Android in the preferences as it wasn't working with the previous version of Eclipse. Now although the eclipse was seeming to run fine, when I PROJECT->CLEAN the project the R.java was missing.

Try re-ticking the android update option (WINDOW -> PREFERENCES -> INSTALL/UPDATE).

This completely solved my issue and I did not have to both with any hassle of scanning each line of my many xml files or my image resources.

Hope this helps someone :)

Answer 3

created new project in eclipse, then I imported the sample files into it, yet still same error. You might want to try the following:

• In Eclipse -> Right Click on Project -> Android Tools -> Fix Project

• made sure that all resources are lowercase.

Answer 4

Try unclicking and re-clicking build project automatically in the project dropdown, closing the program each time. There have been know bugs about this for a while but there's not always a set fix.

When it once happened to me it turned out it was because i'd named an .xml file with a capital letter. Worth checking.

Answer 5

There are mistakes in res. Once I have the same xml files in layout and menu, generate failed, no R.java generated.

Answer 6

same happened to me, corrected checking any errors in res xml files, and changing target 1.5 to 2.2 android (on my case) this usually happens to me when importing external code or online source code from examples or other developers.