Some characters cannot be mapped using “Cp1252″ character encoding.

Thanks to burakddd.

Solution:

1. Windows Menu –> Preferences –> General (expand it) –> Workspace (click on it).
2. Look for a box “Text File Encoding”. Default will be “Cp1252″.
3. Change radio to select other and select “UTF-8″ from combo box.

Of course this will not happen, if you dump all your text in strings.xml in the first place. *haha*

[?xml version="1.0" encoding="utf-8"?]  (replace the [] with <>)