error Attempt to serve directory

Error:

[error] [client 10.224.100.12] Attempt to serve directory: /var/www/htdocs/

 

Situation:

centos5.3-64bit

apache2.2.21

php5.1.6

the display from browser:

#apachectl configtest
Syntax OK

check partial setting of httpd.conf as below:

DocumentRoot "/var/www/htdocs"
<Directory />
    Options FollowSymLinks
    AllowOverride None
    Order deny,allow
    Deny from all
</Directory>

<Directory "/var/www/htdocs">
    #
    # Possible values for the Options directive are "None", "All",
    # or any combination of:
    # Indexes Includes FollowSymLinks SymLinksifOwnerMatch ExecCGI MultiViews
    #
    # Note that "MultiViews" must be named *explicitly* --- "Options All"
    # doesn't give it to you.
    #
    # The Options directive is both complicated and important. Please see
    # http://httpd.apache.org/docs/2.2/mod/core.html#options
    # for more information.
    #
    Options Indexes FollowSymLinks
    #
    # AllowOverride controls what directives may be placed in .htaccess files.
    # It can be "All", "None", or any combination of the keywords:
    # Options FileInfo AuthConfig Limit
    #
    AllowOverride None
    #
    # Controls who can get stuff from this server.
    #
    Order allow,deny
    Allow from all
</Directory>

<IfModule dir_module>
    DirectoryIndex index.html
</IfModule>

It seem the configure file has not any problem about display file list with httpd service

[Solution]:
#LoadModule autoindex_module /usr/lib64/httpd/modules/mod_autoindex.so
change to
LoadModule autoindex_module /usr/lib64/httpd/modules/mod_autoindex.so
Then restart httpd service.any problem please let me know.

the result from browser: