1> Creating library c:\Qt\4.5-msvc2008\plugins\designer\iconeditorplugin.lib and object c:\Qt\4.5-msvc2008\plugins\designer\iconeditorplugin.exp
1>LINK : fatal error LNK1104: cannot open file 'c:\Qt\4.5-msvc2008\plugins\designer\iconeditorplugin.lib'


why the plugin's lib did't create successfully?