3 Replies Latest reply on Mar 19, 2015 3:33 AM by the_dudes

    Error message: unable to open projects in the background (26 :: 142)

    DennyTwist Level 1

      Hi,
      So im having this issue, I try to render my project out and it goes really slow and when I stop it it gives me:

      after effects warning: unable to open projects in the background (26 :: 142)

       

      Im working on my windows 8.1 workstation with:

      3930k

      32GB RAM

      680 gtx 4GB

      samsung 840 pro SSD

       

      All the files I work with are placed in one folder on my desktop.

      Im under tight deadline and there is no excuse why I should not be able to render multiple frames simultaneously on my computer. (I paid for a decent computer and im paying adobe's software)

       

      When I try the exact same project on my macbook pro it goes twice as fast than on my windows workstation. Now the macbook pro is a decent machine but it is not nearly as good as my workstation. So where does that leave me? Same project works with (MP) on my macbook but not on my windows workstation.

       

      Both after effects are up to date. I try different settings on mulitproccessing.

       

      Multi proccesing on my windows machine works on some projects that I've tried, and on some it doesnt.

      And "it might be a project specific issue" comment im not sufficed with. Like I said im paying for this and the same project clearly works on other machines. I dont want to pay for a software that might work correctly on some projects and not others. And I'm assuming that is not Adobes goal either, thats just sloppy.

       

      What do I do?

       

      (You will have to excuse me if I sound hostile in any way, ever since I signed up with Creative cloud a couple of month ago Ive spent more time with adobe support than with the actual projects..)

        • 1. Re: Error message: unable to open projects in the background (26 :: 142)
          Rick Gerard Adobe Community Professional & MVP

          You said:

          and there is no excuse why I should not be able to render multiple frames simultaneously on my computer. (I paid for a decent computer and im paying adobe's software)

          This tells me you don't understand MP rendering at all and have not checked the numerous threads on the subject. It only works properly in a few situations. First your codec, the format you render to must be compatible with MP rendering. Most are not, and that's not Adobe's fault. Second, you must be using plug-ins that are optimized for MP rendering. The list is short and does not include many 3rd party plug-ins. Third, MP rendering settings are very easily screwed up by incorrect memory settings.

           

          Without knowing anytnhing more about your project than the render is failing and you have an SSD drive, a bit of memory and Windows 8.1 there's no way to tell what to do to fix the problem except to turn off MP rendering, allow enough ram for other operations to stay running while your system is running, make sure your AE software, GPU drivers and plug-ins are up to date.

          • 2. Re: Error message: unable to open projects in the background (26 :: 142)
            DennyTwist Level 1

            Hmm, thats wierd since I have been checking "numerous threads" on the subject and no, I might not know a lot within the subject. Still I have been talking to adobe support about the subject, they have taken over my computer via teamviewer and they dont even know.

            I use

            *Same codec: quicktime (animation).

            *Same project

            *Same plugins

            *Both when exporting and rendering in timeline

             

            on my Windows as well as on my Mac

             

            I have been searching google/adobe a lot but I might have missed something except the usual: "Did you update your after effect t the latest version" or "did you turn on your computer before trying to use it"?

            So I have been looking and Ive been having contact with Adobes techincal support and yet they dont know what the issue or what might cause it duo to my situation. The conclusion from your comment "tells me THEY don't understand MP rendering at all and have not checked the numerous threads on the subject"

             

            Why im asking here is to get help, I'm no expert, thats why I turn to the forums. If I need to specify more info about the project or anything else than Im more than willing to do so. If you want to help me I appriciate it, if you dont want to help then dont..

            • 3. Re: Error message: unable to open projects in the background (26 :: 142)
              the_dudes Level 1

              A very good response. It seems to me to be this way as well.

              AE might as well output a reason in the log, naming the part that blocks MP rendering.
              If not, there's just no way of knowing.