Avidemux_2.7.6.app "cannot be opened because the developer cannot be verified"

[some_user]

I'm on MacOS 10.15.6 (19G2021).

Avidemux 2.7.4 runs, but version 2.7.6 doesn't:

http://www.avidemux.org/nightly/osx_catalina/Avidemux%202.7.6.dmg
->
""Avidemux_2.7.6.app" cannot be opened because the developer cannot be verified."

https://download.fosshub.com/ [...] /Avidemux_2.7.6_Catalina_64Bits_Qt5.dmg
->
""Avidemux_2.7.6.app" cannot be opened because the developer cannot be verified."

I hope this can get fixed.

Thanks in advance!

[eumagga0x2a]

Somewhere in settings --> security, after the initially blocked execution of the app, there should be an option to allow Avidemux to run.

I'm on MacOS 10.15.6

Me either.

I hope this can get fixed.

No, this is how Apple wants things to work or rather not to work for small open source projects who cannot provide signed binaries. Execution still can be allowed on 10.15.6, but may become impossible in later versions.

[some_user]

Thanks for your reply!

This worked:

https://github.com/hashicorp/terraform/issues/23033#issuecomment-539736692

In Finder I did right-click on /Applications/Avidemux_2.7.6.app -> Open.

Since then, when I click the Avidemux icon in the Dock (which I had added), it opens.

For Avidemux, perhaps this could be an option?

https://root-forum.cern.ch/t/mac-10-15-catalina-cannot-be-opened-because-the-developer-cannot-be-verified/36864/10

[eumagga0x2a]

Thanks, the first one is for running an already installed application, the second one addresses the issue of installing a downloaded .pkg (not .dmg), no? I still don't see anything Avidemux can do about it as the project doesn't have an Apple developer ID etc.

I have to admit that I don't have any use for macOS and the hardware other than working on Avidemux code when on the go i.e. without access to a Linux machine, and I mostly run my own Avidemux builds without installation from the Terminal (I do remember having tested the official build once). My knowledge of macOS quirks is utterly limited and is occasionally deepening only out of utmost necessity.

[some_user]

I just tried it:
Downloaded it again using the browser - got the blocking popup again.
Then I did this:

Code Select Expand

curl -O "http://www.avidemux.org/nightly/osx_catalina/Avidemux%202.7.6.dmg"Et voilà - Avidemux runs.
It's silly, but if you try it and succeed as well then you could (at the official download places) instruct users on Catalina to run that command.

[eumagga0x2a]

I just tried it:
Downloaded it again using the browser - got the blocking popup again.
Then I did this:

Code Select Expand

curl -O "http://www.avidemux.org/nightly/osx_catalina/Avidemux%202.7.6.dmg"Et voilà - Avidemux runs.

Do you mean by "runs" that Finder allows installation (mounting the image and copying the content to /Applications)? Or both installation and execution?

It's silly, but if you try it and succeed as well then you could (at the official download places) instruct users on Catalina to run that command.

While exemplary for the state of the platform, I would not rely on this behavior surviving for long. I rather wonder whether

Code Select Expand

xattr -d com.apple.quarantine /path/to/dmg/file/downloaded/by/Safari
achieves the same.

[some_user]

I wrote "Avidemux runs" - it ran 

Best to try it yourself.