I am getting following error in publishing log of a file.

Phase: Deployment Prepare Commit Phase failed, Unable to prepare transaction: tcm:0-25741-66560, Attempting to deploy a binary 40040 to a location where a different binary is already stored Existing binary: 38858:,


1 Answer 1


The problem is that you've already got a binary (image, pdf etc) located in your website with the same file name.

To help you explain the problem, there's also some great content online:


There's also a tridion power tool that can help you identify where your publication contains duplicate binaries:


  • I have power tools installed but I can't see all tolls on my ribbon, I can see only "Image uploaded", "Page publisher", "Count items", "Application data inspector" and "Power tools help"
    – Ali
    Commented Jan 14, 2014 at 23:59
  • The tool is shown when right clicking a publication item only - thanks
    – johnwinter
    Commented Jan 15, 2014 at 5:15
  • I could not see any file duplication in my package but adding a TBB that makes sure all files have unique name solved the issue.
    – Ali
    Commented Jan 15, 2014 at 23:49
  • 1
    Forcing unique binary names usually masks the root cause of the problem and facilitates redundant data to be uploaded into the CMS. I have described the scenario in more detail here: tridion.stackexchange.com/a/9584/159 Commented Dec 11, 2014 at 13:56

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