R cannot be resolved to a variable in a new project

Question

Possible Duplicate:
R cannot be resolved - Android error

I can't create a new android project, neither in windows or Ubuntu! I have 2.3.3 and 2.2 and 4.0 versions of android sdk and I want to create a new project using 2.3.3 version. But after creating the project it says R cannot be resolved to a variable.

I have read all the questions related to this topic and I have done all the suggested solutions but none of them worked for me. (Clean Project , check Android version in Build path menu, checking xml files, lower case xml file names and etc)

Since I'm using a blank project, it's not because of some incorrect xml files or some errors in java codes.(for god sakes its a blank project!! how could it be broken?)

I don't know what to do. any suggestions would be appreciated.

see [this](http://stackoverflow.com/a/10486659/1289716) answer and [this](http://stackoverflow.com/a/11467781/1289716) — MAC, Aug 01 '12 at 12:58

score 7 · Answer 1 · edited Nov 23 '12 at 07:56

7

If cleaning the project doesn't work and if there is no problem with xml files(as it is a new project). Then go to androidmanifest.xml,edit it and add some spaces between the lines, save it. Now clean the project, error will vanish.

This happens because of stale r.java file. When we edit android manifest file,R.java is created again.

edited Nov 23 '12 at 07:56

Echilon

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answered Nov 23 '12 at 07:37

Ryhot

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score 1 · Answer 2 · answered Aug 01 '12 at 13:00

1

It happen's because of error's in XML files, review all xml files and check your Problems window. and then clean your project..

Hope it will work..

answered Aug 01 '12 at 13:00

RajaReddy PolamReddy

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my project is blank!!! there's nothing in it. i create a new project and Bang! it cannot resolve R!!! – Firouziam Aug 01 '12 at 13:24
there is nothing wrong with my xml files. there's only two errors in my java files: **R cannot be resolved to a variable** – Firouziam Aug 01 '12 at 13:28
mainly it happens because of error's in xml files. if that was not the problem check your eclipse and sdk tools has all files or not.(not sure).. – RajaReddy PolamReddy Aug 01 '12 at 13:28
can you show me your xml file.. – RajaReddy PolamReddy Aug 01 '12 at 13:29
here is my only layout file : – Firouziam Aug 01 '12 at 13:51
What is the use of this tools:context=".MainActivity" and are you sure you have android:padding="@dimen/padding_medium" values in dimensions.xml file – RajaReddy PolamReddy Aug 01 '12 at 14:02
i don't know. this is what eclipse has made! yeah there is three paddings there. – Firouziam Aug 01 '12 at 14:16

score 1 · Answer 3 · edited Oct 21 '12 at 23:56

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I had exactly same problem. Here is what worked for me:

change SDK's folder permissions: (chmod -R 777)
add import android.R;
project->Clean
remove import android.R;

edited Oct 21 '12 at 23:56

Niall C.

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answered Oct 21 '12 at 22:46

Matej09

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R cannot be resolved to a variable in a new project

3 Answers3