After upgrading to Sitecore 7.2 I ran into this exception in the crawling log when trying to index PDF documents: Unable to create document builder (). Please check your configuration. We will fallback to the default for now. The solution…

After upgrading to Sitecore 7.2 we got the following exception when trying to build our custom indexes: The resolution to this is quite simple. Sitecore has included <initializeOnAdd> to the index configuration. If this field is missing in the configuration,…