[Pharo-project] [Tiling Window Manager ] could not load it

Hi i could not load TWM on pharo unstable core.(see below) what am i doing wrong? any idea? thanks Pharo image: Pharo1.3#13272 Virtual machine used: Croquet Closure Cog VM [CoInterpreter VMMaker-oscog.54] Platform Name: unix Class browser used (if applicable): Browser Steps to reproduce: #. Gofer it squeaksource: 'TilingWindowManager'; package: 'ConfigurationOfTilingWindowManager'; load. #.ConfigurationOfTilingWindowManager load. #. Actual Result This package depends on the following classes: OBCodeBrowser You must resolve these dependencies before you will be able to load these definitions: OBCodeBrowser classSide>>pathworkUIThemeColor #. Expected Result to load it successfully