Icon tag unknown in IFW 4

It looks like "<Icon>" tag is not recognized. I get this error:
 
{{Create mac installer from release[0] Parsed arguments, ok.
[6] Warning: QFile::remove: Empty or null file nameCaught exception: Error in /Users/ademmler/QtProjects/Spectraproof2/Installers/mac/config/config.xml,
line 8, column 10: Unexpected element "Icon".
[6] Cleaning up...}}

This is my config file:
 
<?xml version="1.0" encoding="UTF-8"?><Installer><Name>Installer Test</Name><Version>2.1.0-RC</Version><Title>Installer Test</Title><Publisher>Lacunasolutions</Publisher><ProductUrl>http://test.com</ProductUrl><Icon>spicon.icns</Icon><Logo>splogo.png</Logo><Background>splogo.png</Background><StartMenuDir>MyApplications</StartMenuDir><TargetDir>/Applications/MyApplications/InstallerTest</TargetDir><WizardStyle>MacStyle</WizardStyle></Installer>