raw cannot be resolved or is not a field error (Eclipse/Android/Java)

For some odd reason I'm getting this error: raw cannot be resolved or is not a field

I'm trying to do the following

   MediaPlayer click = MediaPlayer.create(this, R.raw.button_click.mp3);

in my onCreate method.

I've checked the fold开发者_如何转开发er & mp3 file, and it's <project-name>/raw/button_click.mp3. I've tried:

• Cleaning up my project
• Restarting Eclipse
• Making it R.raw.button_click
• Checking if everything's lowercased & spelled correctly

Help, please!

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Shouldn't it be in projectname/res/raw, instead of projectname/raw?