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Error: 'Exception Has Been Thrown by the Target of an Invocation' When Installing GFI MailEssentials

Author: Luis Fernandes Updated

Overview

GFI MailEssentials fails to be installed and encounters an error. The event log contains an error with the event id 4000:

msecmlhost plugin licsvc reports exception. Not enough storage to process this command

This error occurs even though there is plenty of memory space in the hard drive. The GFI MailEssentials installer log file (accessible from %temp% folder > file name which has the word maininstall) contains:

Exception thrown by custom action:
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.InvalidCastException: Unable to cast object of type 'System.DBNull' to type 'System.String'.

 

Information

Environment

  • GFI MailEssentials
  • All supported environments

Root Cause

A broken 'UpgradeCode' registry key is present.

 

Process

A broken registry key is present which prevents to complete the upgrade process. Please contact the Technical Support Team for further assistance.

 

Confirmation

There should be no more issues when installing GFI MailEssentials.