SP2010 V4.master page changes results into "/rcconsole.aspx. Code blocks are not allowed in this file."

SP2010 V4.master page changes results into "/rcconsole.aspx. Code blocks are not allowed in this file."

While making UI - Colors & Logo changes for a Record Center Template of a SP2010 site this particular file - rcconsole.aspx got mesed up. I made some changes to V4.master pages and it was working fine for all other site pages excewpt the one. The resolution I got is - Do not make inline or markup changes in any master pages related to CSS. All CSS chagnes should go in corresponding .CSS file.