Error 5 occurred at write to binary file

[Sopek]

Hi,
I encounter problem when writing an image file to binary.

***Error 5 occurred at Write to Binary File***

Possible Reason:

LabVIEW：File already open.
=====================================
NI-488: Command requires GPIB Controller to be System Controller.


Anyone know what issue will cause this problem? How to solve it?

[RavensFan]

The error message gives one clue.

Is the file already open?  Is it already open by another application?

To solve, don't open it before then, or don't try to open it now.

[Sopek]

The file is not open in any other application. 

[RavensFan]

Without seeing your actual VI, there is nothing more I nor anyone else can suggest.