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Asked: 2026-05-10T14:52:04+00:00

I am getting this error now that I hit version number 1.256.0: Error 4

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I am getting this error now that I hit version number 1.256.0: Error 4 Invalid product version ‘1.256.0’. Must be of format ‘##.##.####’

The installer was fine with 1.255.0 but something with 256 (2^8) it doesn’t like. I found this stated on msdn.com: The Version property must be formatted as N.N.N, where each N represents at least one and no more than four digits. (http://msdn.microsoft.com/en-us/library/d3ywkte8(VS.80).aspx)

Which would make me believe there is nothing wrong 1.256.0 because it meets the rules stated above.

Does anyone have any ideas on why this would be failing now?

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1 Answer

  1. This article says there is a major and minor max of 255.

    http://msdn.microsoft.com/en-us/library/aa370859(VS.85).aspx

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