Noldus Knowledge Base

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Knowledge Base articles - The Observer XT


What is the best way to share my Observer project with another user? Can I simply send the .vop (Observer Project) file?

This issue involves a situation where you would like to share your project from The Observer XT with another user and are not sure of the best method for doing so.


Diagnosing the Load Project Failed (Id 10459) error in The Observer

This error may occur because the file you are opening is not a project, the filename does not match when you restore the project from a backup, or there is a problem with the project database file.


Playback control buttons are grayed out in The Observer XT

This issue occurs when you’re in an observation and the playback control buttons are greyed out and won’t let you play, pause, etc. the video.


The Observer XT Error Id 12524 – Event Log Read Failure

The message indicates that the event log files cannot be found. These files are distinct from the project file (the .vop file) and if they have been separated from the rest of the project, this error will occur.


I cannot find my project’s VOP file. I see a file that looks like it might be it, but I am unsure

This issue involves a situation where you are attempting to open a project in The Observer XT via the project’s folder (by default in C:\Users\Public\Documents\Noldus\The Observer XT\Projects) and you do not see the project’s “Observer Project” (or .vop)


The Observer will not install and the installation log file says Access Denied - 0x80070005

This issue involves a situation where the installation of The Observer XT on your PC fails and the resulting log file says “Error 0x80070005”


I made a backup file but I cannot see the VPB file extension on the end in File Explorer.

In File Explorer, select the View menu, then check the box for ‘File name extensions


Can I share my project with another user that has a different version of The Observer XT?

This issue involves a situation where you would like to share your the Observer XT project with a colleague that is using a different version of The Observer XT than you.


The Observer XT will not install and the resulting Log file says Access Denied 0x80070005

This issue involves a situation where the installation of The Observer XT on your PC fails and the resulting log file says “Error 0x80070005”


Error contacting the license server in The Observer XT 16

Early versions of The Observer XT 16 may need to updated if using a software-based license, due to changes in the license server.