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Mojave - VEP5 Server "Synsopos.app" Error
Last post Tue, Jul 16 2019 by Paul, 8 replies.
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Posted on Tue, Feb 26 2019 05:55
by pianoomann88
Joined on Wed, Aug 15 2007, Posts 21

Hi everyone,

I'm on a fresh install of macOS Mojave with all software & licences up-to-date. I've been getting this error when trying to open up VE Pro 5 Server:

"Application 'Synsopos.app' could not be started. Probably the file is corrupted or incompatible, or file access permissions are set incorrectly."

I do not get this error when opening the non-server version, nor do I with VE6 Service (not pro).

I know it has to do something with Mojave's "Automation" section under "Security & Privacy", but VEP is there and the 'Synsopos' box is checked.

I have important Logic sessions that use VEP5 Server and right now I can't use them on this machine.



Posted on Tue, Feb 26 2019 08:43
by fratveno
Joined on Thu, Dec 01 2011, Posts 41

FWIW; a Mac colleague of mine has the exact same problem...

Tags: VEPRO 5 Mojave
Posted on Tue, Feb 26 2019 08:51
by Paul
Joined on Sat, Aug 03 2002, Vienna, Posts 11156

Hello Lee, 

I am sorry to say that, although VE Pro 5 basically works fine in macOS 10.14, this exact problem can occur with VE Pro 5 Server(!) under certain circumstances - unfortunately, we simply do not know why this happens and I am afraid that our developers will not update VE Pro 5 anymore, as it is in fact legacy software.

Please contact us via , we will find a solution for you. 


Paul Kopf
Product Manager - Vienna Symphonic Library
Posted on Tue, Feb 26 2019 15:59
by dbudde
Joined on Sun, Mar 02 2003, Seattle,WA USA, Posts 443

Here are couple of things to try.  I've seen these work on other apps that are not designed for Mojave.

Make sure your elicenser app is up to date first.

Also, before doing any of the following, make sure synsopos is not running (force quir it if you have to using activity monitor).


1.  Try disabling and re-enabling the security and privacy checkbox in the automation panel.  


2.  If that doesn't work, you can reset the TCC database using the following command in a terminal window:

tccutil reset AppleEvents

This will remove all occurances odf the Sysnsopos.app items in the automation tab.  You can see this happen if you have that window open at the time.  This will require you to authorise each app once again as you did initially.  

If one of these works you probably need to do it each time you update the elicenser app,


3. As a last resort, you can launch elicenser and leave it running while using VEP 5. Then VEP 5 won't need to control synsopos since it will already be running.

Posted on Tue, Jun 11 2019 14:05
by deepee42
Joined on Tue, May 24 2016, Nashville, Posts 5

Wow....  I'm in the same boat.  Thanks for the middle finger support Vienna.  

Posted on Mon, Jun 17 2019 19:06
by z_jerry
Joined on Sat, Mar 05 2011, Posts 3

Me, too. Same boat with mixes in progress. I have determined that 'Synsopos' is actually running. (I can see it in Activity Monitor.) However, I still get the 'not running' error when I try to launch VEP Server 64-bit. So the issue seems to be VEP Server 64-bit not being able to 'see' that the process is running. Anybody find a way around this? Paul, any further thoughts?

Posted on Tue, Jul 16 2019 10:12
by twistiejoe
Joined on Mon, Nov 04 2013, Posts 28

Is there any updaate on this? WHERE IS VIENNA FOR HELP ? HELLOOOO????

Main Machine: iMac 2.8Ghz, 16GB RAM, OSX 10.8.5
Slave Machine: MacPro 2,1. 2x 2.66 Quad-Core Intel Xeon, 32GB RAM OSX 10.6.8, samples streamed via SAMSUNG 1TB EVO (on SATA I though).
DAW: LogicX
Posted on Tue, Jul 16 2019 10:18
by Paul
Joined on Sat, Aug 03 2002, Vienna, Posts 11156


I'm afraid VE PRO 5 simply does not work with Mojave.

No way anyone could anticipate what Apple is up to with their future updates.

Upgrade prices to VE Pro 7 are the same for all users of previous VE Pro versions. 


Paul Kopf
Product Manager - Vienna Symphonic Library
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