Recently been doing some quick prototyping some web-parts, regular aspx, and master pages in sharepoint and just been using inline code blocks. then i got an error message as follows
"An error occurred during the processing of /_Path. Code blocks are not allowed in this file."
In order to work around this I had to edit the web.config as follows.
<SharePoint>
<SafeMode MaxControls="200" CallStack="false" DirectFileDependencies="10" TotalFileDependencies="50" AllowPageLevelTrace="false">
<PageParserPaths>
<PageParserPath VirtualPath="~/pages/*" CompilationMode="Always" AllowServerSideScript="true" />
</PageParserPaths>
</SafeMode>