NEURON installation on macOS Catalina

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kellihancock
Posts: 1
Joined: Tue Dec 17, 2019 4:14 pm

NEURON installation on macOS Catalina

Post by kellihancock » Fri Dec 20, 2019 9:01 am

Hello -

I am trying to install NEURON on macOS Catalina 10.15.1 but I get an error message that says "'nrn-7.7.x86_64-osx.pkg' can't be opened because Apple cannot check it for malicious software". Has anyone else encountered or resolved this issue?

Thanks,

Kelli



hines
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Posts: 1583
Joined: Wed May 18, 2005 3:32 pm

Re: NEURON installation on macOS Catalina

Post by hines » Mon Dec 23, 2019 8:48 am

Yes. It is not enough any longer that the package be signed, it must also be notarized (now a $100 annual fee). Notarization means that Apple
scanned the app for known malicious software. From https://support.apple.com/en-us/HT202491

How to open an app that hasn’t been notarized or is from an unidentified developer
Running software that hasn’t been signed and notarized may expose your computer and personal information to malware that can harm your Mac or compromise your privacy. If you’re certain that an app you want to install is from a trustworthy source and hasn’t been tampered with, you can temporarily override your Mac security settings to open it.

In macOS Catalina and macOS Mojave, when an app fails to install because it hasn’t been notarized or is from an unidentified developer, it will appear in System Preferences > Security & Privacy, under the General tab. Click Open Anyway to confirm your intent to open or install the app.

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