Apps R cannot be resolved to a variable

[aliblu]

My DroidAvtivity.Java file started with this error..."R cannot be resolved to a variable"...if you could please tell me what happened to my file?

 

[dimiter]

Try Project->Clean. Also sure, what variable is declarated (ex. , if it's view id, check existence this id in xml)

If project get start, and error go down the drain, it's eclipse feature.

 

[aliblu]

Thank you brah

 

[alostpacket]

yep

Project > clean is like the ultimate first line of defense in all things weird with eclipse.

 

[aliblu]

Hmmm so Project > Clean does not seem to be holding up... Any other suggestions?

 

[danBuonocore]

I have tried Project > Clean numerous times and it still has not resolved the issue. Other sites have said to reinstall the .android folder, remove the import R line, change the target of the run/debug for the project, turn automatic rebuild off, delete and recreate all AVDs, etc. but nothing has worked. Any ideas?

 

[israfelwater]

I hate this error, I have also had success with right click on project > android tools > fix project properties, but that is not work for me now. ahhhhh. I can't rebuild because my project has errors everywhere where I use R...

 

[israfelwater]

oh, nevermind, All I had to do was delete the line in the xml file which was throwing an error, save, and turn on automatic builds. Then the error went away and "/res" built properly under the "gen" dir.

Odd, I commented out the line but the error wouldn't go away. I had to delete it...

here is a helpful link for this error

eclipse - R cannot be resolved - Android error - Stack Overflow

 

[jonbonazza]

If there are errors in ANY of your resources, whether it be xml syntax, illegal file names, etc.., the R.java file will not be generated.