I ran into this problem this week after doing several site collection moves.     The resolution is simple, effective, and only take a few minutes.

1. ststam -o preparetomove –contentdb [SQLServer:DatabaseName] –site [http://sharepoint]
2. stsadm -o deletecontentdb –url [http://sharepoint] –databasename [database] –databaseserver [SQL sever]
3. stsadm -o addcontentdb –url [http://sharepoint] –databasename [database] –databaseserver [SQL sever]

If you see this error message in WSS chances are you have an active reference to custom field type but have not installed the field type.     The “/_layouts/mngfield.aspx” page will throw this error in the above scenario.    Two possible resolutions:

• Visit Central Administration and deploy (or re-deploy) the WSP for the custom field type.    For me this is usually http://www.codeplex.com/CustomFieldControls and the Parent Child Field types.

• Remove the Site Column (SPField) objects with object model code.     Requires developer skills.

Microsoft Office SharePoint Server 2007 provides a single, integrated location where employees can efficiently collaborate with team members, find organizational resources, search for experts and corporate information, manage content and workflow, and leverage business insight to make better-informed decisions.

• Collaboration Allow teams to work together effectively, collaborate on and publish documents, maintain task lists, implement workflows, and share information through the use of wikis and blogs.

• Portals Create a personal MySite portal to share information with others and personalize the user experience and content of an enterprise Web site based on the user’s profile.

• Enterprise Search Quickly and easily find people, expertise, and content in business applications.

• Enterprise Content Management Create and manage documents, records, and Web content.

• Business Process and Forms Create workflows and electronic forms to automate and streamline your business processes.

• Business Intelligence Allow information workers to easily access critical business information, analyze and view data, and publish reports to make more informed decisions.