Outlook Web App couldn't initialize. Forms registry %1 specifies %2 as the base experience, but %2 is not defined in the ...

Outlook Web App couldn't initialize.

Forms registry %1 specifies %2 as the base experience, but %2 is not defined in the forms registry.

The forms registry is a critical component of Outlook Web App. If this error isn't addressed, users might not be able to access Outlook Web App. The Help and Support Center provides information about how to troubleshoot the forms registry.

Outlook Web App couldn't initialize. File "%1" in theme folder "%2" wasn't parsed. More than one instance of the attribute ... Outlook Web App couldn't initialize. File "%1" in theme folder "%2" wasn't parsed. More than one instance of the attribute ... Outlook Web App couldn't initialize. Forms registry %1 inherits forms registry %2, but forms registry %2 couldn't be found. ... Outlook Web App couldn't initialize. Forms registry %1 inherits forms registry %2, but forms registry %2 couldn't be found. ... Outlook Web App couldn't initialize. Forms registry %1 specifies %2 as the base experience, but %2 is not defined in the ... Outlook Web App couldn't initialize. Forms registry %1 specifies %2 as the base experience, but %2 is not defined in the ... Outlook Web App couldn't initialize. Invalid forms registry file %1 Line number = %2 Position = %3 The value "%4" specified ... Outlook Web App couldn't initialize. Invalid forms registry file %1 Line number = %2 Position = %3 The value "%4" specified ... Outlook Web App couldn't initialize. Invalid forms registry file %1 Line number = %2 Position = %3 The value "%4" specified ...