I did a clean install of openmeetings on Ubuntu 16:04, following each
step of the tutorial. All went well except for a message during the
installation of libraries that libgpac-dev not found.

However, when I attempted to upload a powerpoint file, I encountered
the same error I had in the previous installation. As i scrolled
through the tutorial, I saw a screenshot of the first window users see
when they visit the URL to complete the installation. While the
tutorial says to press the next button, the texts on the window refers
to installing ghostscript.  I did that and the problem was immediately
solved.

It would be good if the installation of ghostscript is listed as a
step in the ubuntu tutorials, in a similar way as ImageMagick and Sox.
I know it is already so in the Windows tutorial.

Thanks again for your continued help and support.

On Mon, Apr 2, 2018 at 10:12 PM, Maxim Solodovnik <solomax...@gmail.com> wrote:
> Yep
> Ubuntu has ImageMagic available in its repositories ....
> So you have 2 advantages:
> 1) no need to download
> 2) all dependencies will be installed automatically :)
>
> On Tue, Apr 3, 2018 at 9:09 AM, Morrell Aberdeen <morrellaberd...@gmail.com>
> wrote:
>>
>> Thanks again!
>>
>> Just before I saw your email, I made the decision to do a fresh
>> install of openmeetings. I would therefore update you should issues
>> arise and would let you know how things went.
>>
>> I have one question: I note that on the Windows 10 installation
>> tutorial, a link is given to download imagemagick.
>>
>> However, in the Ubuntu tutorial, while there is an install command,
>> there is no reference to the download of imagemagick.
>>
>> Is there a reason for that difference?
>>
>> On Mon, Apr 2, 2018 at 9:33 PM, Maxim Solodovnik <solomax...@gmail.com>
>> wrote:
>> > So you have uploaded ppt file
>> > It was converted to pdf, but not to PNG ....
>> > Can you share this pdf with me?
>> >
>> > Or maybe you cat try upload to demo server and check if it works?
>> >
>> > WBR, Maxim
>> > (from mobile, sorry for the typos)
>> >
>> > On Mon, Apr 2, 2018, 23:46 Morrell Aberdeen <morrellaberd...@gmail.com>
>> > wrote:
>> >>
>> >> Yes, the files are present. It was that file I downloaded and opened.
>> >>
>> >> See the screenshots attached.
>> >>
>> >> On Mon, Apr 2, 2018 at 12:32 PM, Maxim Solodovnik
>> >> <solomax...@gmail.com>
>> >> wrote:
>> >> > I believe the root cause is
>> >> >
>> >> >
>> >> >
>> >> > '/opt/red5402/webapps/openmeetings/upload/files/bed99551-f125-4000-a827-cc7ba3070a95/bed99551-f125-4000-a827-cc7ba3070a95.pdf'
>> >> > : No such file or directory
>> >> >
>> >> > Can you check with the file that exists?
>> >> >
>> >> > On Mon, Apr 2, 2018 at 11:10 PM, Morrell Aberdeen
>> >> > <morrellaberd...@gmail.com> wrote:
>> >> >>
>> >> >> Thanks again!
>> >> >>
>> >> >> I downloaded and was able to open the pdf files on my laptop.
>> >> >>
>> >> >> I then ran the command you gave in the console.  This was the
>> >> >> response:
>> >> >>
>> >> >> convert: unable to open image
>> >> >>
>> >> >>
>> >> >>
>> >> >> '/opt/red5402/webapps/openmeetings/upload/files/bed99551-f125-4000-a827-cc7ba3070a95/bed99551-f125-4000-a827-cc7ba3070a95.pdf'
>> >> >> : No such file or directory @ error/blob.c/OpenBlob/2701.
>> >> >> convert: no images defined '
>> >> >>
>> >> >>
>> >> >>
>> >> >> /opt/red5402/webapps/openmeetings/upload/files/bed99551-f125-4000-a827-cc7ba3070a95/page-%04d.png'
>> >> >> @ error/convert.c/ConvertImageCommand/3258.
>> >> >>
>> >> >> On Mon, Apr 2, 2018 at 2:31 AM, Maxim Solodovnik
>> >> >> <solomax...@gmail.com>
>> >> >> wrote:
>> >> >> > Can you check the file:
>> >> >> >
>> >> >> >
>> >> >> >
>> >> >> > /opt/red5402/webapps/openmeetings/upload/files/bed99551-f125-4000-a827-cc7ba3070a95/bed99551-f125-4000-a827-cc7ba3070a95.pdf
>> >> >> > and maybe try to open it PDF viewer?
>> >> >> >
>> >> >> > if everything is OK
>> >> >> > can you run the full command:
>> >> >> >
>> >> >> > /usr/bin/convert -density 150
>> >> >> >
>> >> >> >
>> >> >> >
>> >> >> > /opt/red5402/webapps/openmeetings/upload/files/bed99551-f125-4000-a827-cc7ba3070a95/bed99551-f125-4000-a827-cc7ba3070a95.pdf
>> >> >> > -quality 90
>> >> >> >
>> >> >> >
>> >> >> >
>> >> >> > /opt/red5402/webapps/openmeetings/upload/files/bed99551-f125-4000-a827-cc7ba3070a95/page-%04d.png
>> >> >> >
>> >> >> > from the console/terminal?
>> >> >> >
>> >> >> > On Mon, Apr 2, 2018 at 1:01 PM, Morrell Aberdeen
>> >> >> > <morrellaberd...@gmail.com>
>> >> >> > wrote:
>> >> >> >>
>> >> >> >> Thanks again.
>> >> >> >>
>> >> >> >> I installed imagemagick.  The path to the convert file is
>> >> >> >> usr/bin.
>> >> >> >>
>> >> >> >> This is now the error after uploading.
>> >> >> >>
>> >> >> >> process: convert PDF to images
>> >> >> >> command: /usr/bin/convert -density 150
>> >> >> >>
>> >> >> >>
>> >> >> >>
>> >> >> >>
>> >> >> >> /opt/red5402/webapps/openmeetings/upload/files/bed99551-f125-4000-a827-cc7ba3070a95/bed99551-f125-4000-a827-cc7ba3070a95.pdf
>> >> >> >> -quality 90
>> >> >> >>
>> >> >> >>
>> >> >> >>
>> >> >> >> /opt/red5402/webapps/openmeetings/upload/files/bed99551-f125-4000-a827-cc7ba3070a95/page-%04d.png
>> >> >> >>
>> >> >> >> exception: null
>> >> >> >>
>> >> >> >> error: convert: no images defined
>> >> >> >>
>> >> >> >>
>> >> >> >>
>> >> >> >>
>> >> >> >> `/opt/red5402/webapps/openmeetings/upload/files/bed99551-f125-4000-a827-cc7ba3070a95/page-%04d.png'
>> >> >> >> @ error/convert.c/ConvertImageCommand/3258.
>> >> >> >>
>> >> >> >> exitValue: 1
>> >> >> >>
>> >> >> >> optional: false
>> >> >> >>
>> >> >> >> out:
>> >> >> >>
>> >> >> >> Is there still an issue with the imagicmagick install?
>> >> >> >>
>> >> >> >>
>> >> >> >> On Sun, Apr 1, 2018 at 10:50 PM, Maxim Solodovnik
>> >> >> >> <solomax...@gmail.com>
>> >> >> >> wrote:
>> >> >> >> > OK :))
>> >> >> >> >
>> >> >> >> > what I can see from your screenshot:
>> >> >> >> > 1) you are using OM 4.0.2
>> >> >> >> > 2) it is not "upload" but "conversion" error
>> >> >> >> >
>> >> >> >> > It seems you don't have ImageMagic installed (or maybe you
>> >> >> >> > don't
>> >> >> >> > have
>> >> >> >> > it in PATH)
>> >> >> >> >
>> >> >> >> > so please install ImageMagic (`convert` utility will be able to
>> >> >> >> > convert PDF to series of images ...)
>> >> >> >> >
>> >> >> >> > On Mon, Apr 2, 2018 at 9:18 AM, Morrell Aberdeen
>> >> >> >> > <morrellaberd...@gmail.com> wrote:
>> >> >> >> >> Thanks for your reply.
>> >> >> >> >>
>> >> >> >> >> I have attached a screenshot of the error. I attempted to
>> >> >> >> >> upload
>> >> >> >> >> a
>> >> >> >> >> powerpoint file of size 880kb. I also created a pdf with just
>> >> >> >> >> the
>> >> >> >> >> word
>> >> >> >> >> "test".  I am seeing the files in the folder but with a small
>> >> >> >> >> yellow
>> >> >> >> >> icon that indicates an error. When I click on the yellow icon,
>> >> >> >> >> I
>> >> >> >> >> am
>> >> >> >> >> receiving the popup which I have attached as a screenshot.
>> >> >> >> >>
>> >> >> >> >> It seems therefore that the files are uploaded but there is
>> >> >> >> >> some
>> >> >> >> >> further processing that is not occurring.
>> >> >> >> >>
>> >> >> >> >> I had no issue with the installation of libre office. The
>> >> >> >> >> libreoffice
>> >> >> >> >> path entered in openmeetings configuration is
>> >> >> >> >> /usr/lib/libreoffice.
>> >> >> >> >>
>> >> >> >> >> I have examined the file structure using Filezilla and can
>> >> >> >> >> confirm
>> >> >> >> >> that the libreoffice folder is at that path.
>> >> >> >> >>
>> >> >> >> >> The maximum upload file size in Admin Config is 104857600
>> >> >> >> >> bytes.
>> >> >> >> >>
>> >> >> >> >> I have uploaded a picture file of .jpg type and had no error
>> >> >> >> >> and
>> >> >> >> >> was
>> >> >> >> >> able to get it on the whiteboard. Attempts to drag the files
>> >> >> >> >> with
>> >> >> >> >> the
>> >> >> >> >> error to the whiteboard shows a page with internal error and a
>> >> >> >> >> link
>> >> >> >> >> back to the homepage.
>> >> >> >> >>
>> >> >> >> >> On Sun, Apr 1, 2018 at 9:44 PM, Maxim Solodovnik
>> >> >> >> >> <solomax...@gmail.com>
>> >> >> >> >> wrote:
>> >> >> >> >>> Do you have any errors in the openmeetings.log file?
>> >> >> >> >>> What browser are you using?
>> >> >> >> >>>
>> >> >> >> >>> Some info on the file is also required
>> >> >> >> >>> 1 size
>> >> >> >> >>> 2 extension/type
>> >> >> >> >>>
>> >> >> >> >>> What is the max upload size in admin->config?
>> >> >> >> >>>
>> >> >> >> >>> WBR, Maxim
>> >> >> >> >>> (from mobile, sorry for the typos)
>> >> >> >> >>>
>> >> >> >> >>> On Mon, Apr 2, 2018, 06:32 Morrell Aberdeen
>> >> >> >> >>> <morrellaberd...@gmail.com>
>> >> >> >> >>> wrote:
>> >> >> >> >>>>
>> >> >> >> >>>> I have installed OpenMeetings 4.0.2 on Ubuntu 17.10.
>> >> >> >> >>>>
>> >> >> >> >>>> When I attempt to upload a powerpoint file, I am receiving
>> >> >> >> >>>> the
>> >> >> >> >>>> message, "There have been errors while processing the file".
>> >> >> >> >>>>
>> >> >> >> >>>> Any help would be appreciated.
>> >> >> >> >>>>
>> >> >> >> >>>> Thanks.
>> >> >> >> >
>> >> >> >> >
>> >> >> >> >
>> >> >> >> > --
>> >> >> >> > WBR
>> >> >> >> > Maxim aka solomax
>> >> >> >
>> >> >> >
>> >> >> >
>> >> >> >
>> >> >> > --
>> >> >> > WBR
>> >> >> > Maxim aka solomax
>> >> >
>> >> >
>> >> >
>> >> >
>> >> > --
>> >> > WBR
>> >> > Maxim aka solomax
>
>
>
>
> --
> WBR
> Maxim aka solomax

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