ارور R cannot be resolved to variable

[سیب8 10]

سلام دوستان من چند ماه پیش یه اپ ساختم الان که میرم بازش کن تو همون اکیلیپس این ارور رو میده تروخدا هر دوستی بلده راهنمایی ایم کنه کاربرا آپدیت میخوان منم نمیتونم این ارور رو رفع کنم:

R cannot be resolved to variable

27 بار این ارور رو داده                  

[مهدی ایزدی 9,203]

درود

بنده Eclipse کار نیستم اما چند راه رو توی تاپیک زیر بهتون گفتن که میتونید امتحان کنید :

http://stackoverflow.com/questions/7824730/r-cannot-be-resolved-to-a-variable

 

 

 

Remove any XML files in the /res/menu folder.

 

When other solutions fail, select your project and delete it. MAKE SURE YOU DO NOT REMOVE FILES FROM DISK.

Then use file>import>existing android code into workspace, and select the location of your project.

 

 

 

My setup was broken after a recent update where the SDK build tools need to be installed separately after the SDK installation. So build tools update + Eclipse restart fixed this for me.

 

 

I got this when I renamed a project. Although the project is renamed, some references are not. Clearing lint, and then rerunning lint helped. (Right click project > Android Tools > Clear Lint Markers, then Run Lint)

 

 know this is an old question but I just solved my own version of it and perhaps this might help someone.

After two days of tearing my hair out with this, I finally got around it by deleting the raw folder, then recreating it and dropping the file(s) back in.

After that, another Project > Clean and it at last compiled.

 

 

 

Problem was eclipse was not generating R.java. To resolve this issue please go to project->clean... and select your project and select ok and then clean and build project and import your package name R file(Ex com.demo.R). It works.

 

و ... که میتونید توی تاپیک برید و ببینید !!!