When attempting to view a document in the Unity Client, the following message is displayed: Exception has been thrown by the target of an invocation.
Ensure the Unity Client is the same version and build as the Application Server. The Unity Client version and build is displayed in the login screen's Build Version field. You can also view the version and build by right-clicking the Unity Client executable file and selecting Properties. The version and build is displayed in the Product version field on the Details tab.
If this error is encountered when attempting to view a Microsoft Office document in the Unity Client, ensure that either Microsoft Office is installed on the workstation or the Integrated Office Viewer is configured to integrate with a valid Microsoft Office Online Server or Office for the web.