Custom Post Type 404 Errors

You may experience problems with 404 errors and custom post types.

Try the following steps:

1. Make sure that none of your Custom Post Types and single pages have the same name. If they do, rename the single page, including the slug.
2. Log in to your WordPress Administration Screens, navigate to Settings > Permalinks. Select the default permalinks. Save. Then reselect your preferred permalinks. This will flush the rewrite rules and should solve your problem.