Installers 4.1.1 - both Qt and Cocoa - not from an identified developer macOS Big Sur 11.6

[malepower]

Tried to install (by moving to Applications folder) first the Qt then the Cocoa version, after upgrade to Big Sur 11.6.

My system is set to Allow apps downloaded from App Store and identified developers

dupeguru.app was blocked because it is not from an identified developer

There is then an option to run it anyway in System Preferences -> Security and Privacy

Side issue it needed to be given full disk access

Thank you

[arsenetar]

Although both applications are signed with my developer certificates, I am not currently paying for the Apple Developer Program so they show up that way. Right now paying for the Apple Developer Program is not a cost I am willing to pay out of my pocket as I only use it for this project.

[porteusconf]

Possible work-around... The following worked for me on 10.14.6 (aka Mojave), and I'll test on 10.15 soon and report back...
1 . Open Terminal and paste in following command(s):

 /Applications/dupeguru.app/Contents/MacOS/dupeguru 

Optional: One way to create a script you can double-click to run dupeguru.app is:

echo " /Applications/dupeguru.app/Contents/MacOS/dupeguru " > ~/Desktop/dupeguru-run.command
chmod a+x  ~/Desktop/dupeguru-run.command

2. System Preferences: Security & Privacy: Privacy: "Full Disk Access" (+) add dupeguru AND add Terminal and/or iTerm.
   
   (If dupeguru is running, it will says dupeguru won't have access until restarted, and offer to quit dupeguru).

[bunk3m]

Today trying the v4.2 on Macos 10.14.6, and it crashes every time I want to start. The Qt version is OK.

[simcc]

Same issue. xattr -d com.apple.quarantine /Applications/dupeguru.app Worked for me in Mojave.

[jeffkruczynski]

You can also open apps like this by control-clicking on the app, then choosing Open. You'll see a dialog that looks very similar but which includes an "Open Anyway" option or something like that.

[PMiBu]

Possible work-around... The following worked for me on 10.14.6 (aka Mojave), and I'll test on 10.15 soon and report back... 1 . Open Terminal and paste in following command(s):

 /Applications/dupeguru.app/Contents/MacOS/dupeguru 

Optional: One way to create a script you can double-click to run dupeguru.app is:

echo " /Applications/dupeguru.app/Contents/MacOS/dupeguru " > ~/Desktop/dupeguru-run.command
chmod a+x  ~/Desktop/dupeguru-run.command

2. System Preferences: Security & Privacy: Privacy: "Full Disk Access" (+) add dupeguru AND add Terminal and/or iTerm.
   
   (If dupeguru is running, it will says dupeguru won't have access until restarted, and offer to quit dupeguru).

unfortunalty this workaround no longer works on Sonoma, but the other two suggested workarounds work just fine