1 Reply Latest reply: Feb 12, 2013 5:00 AM by Bengt Wärleby
jessssicahope0914 Level 1 Level 1 (0 points)

How can I fix the "parameter error" when I'm trying to finalize a project in iMovie? The project is completely put together and I've watched it thought multiple times and that works fine but every time I try to finalize the video so I can export it onto my flash drive ( this is for a school project and I need to be able to play it on my teachers computer, hence the need to put it on a flash drive) a screen pops up and it says that it can't publish because there was a parameter error. What does this mean exactly and how can I fix this? Any and all help would be greatly appreciated.

MacBook Pro
  • 1. Re: How can I fix the "parameter error" when trying to export a project?
    Bengt Wärleby Level 6 Level 6 (19,155 points)



    Error -50 paramErr  Error in user parameter list


    Can there be any external hard disks - if so How is/are it/they formatted ? Must be Mac OS Extended (hfs) if used for Video.


    UNIX/DOS/FAT32/Mac OS Exchange - works for most but not for VIDEO.


    What this means in Your situation is above me.

    • free space on internal boot hard disk? How much ?


    Video codec

    • streamingDV, AIC etc. (not .avi, .mp4, .m4v, .wmv etc as they are containers not codecs)



    • in what format ? .jpg, .bmp, .tif, else ?



    • from where/what format ? iTunes, .avi, .mp3, .aiff, else ?


    The "com.apple.iMovie.plist" file


    Many users has not observed that there are TWO libraries.

    • Library - at root level

    • Library - in user/account folder - THIS IS THE ONE to look into


    from Luke Burns

    I fixed the problem.. but it was very, very strange. I had a very long section for credits and set the line spacing to 1.0.. for some reason this caused it. I removed it, and it worked fine. I put it back, and I couldn't preview or play the video.


    I don't know why that could cause that big of a problem, but it did..



    You need more free space on your hard drive.



    After phone support from apple I ended up creating a new project and adding all 117 clips back in individually till I found out what clips flagged and would not allow me to export. I had 3 I deleted and replaced and everything works now 1hr after tedious work....


    Where do Your material come from

    • Camera

    • External hard disk

    • USB-memory


    And all are connected so that iMovie can find it ?


    Yours Bengt W