Error in html_filtered.xslt?

[anonymous]

After installation, i'm getting following errors in the log :

  File "build\bdist.win32\egg\pagetodoc\pagetodoc.py", line 200, in execute_external_program
    raise Exception("Error executing command (return code = %s): %s" % (retval, errData))
Exception: Error executing command (return code = 5): file:///c:/Trac/Projects/xxxx/templates/html_filtered.xslt:165: parser error : Entity 'nbsp' not defined
e class="code"><thead><tr><th class="lineno">Line</th><th class="content">&nbsp;
                                                                               ^