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Payam EzatpoorPayam Ezatpoor 

Salesforce CLI on MacOS Catalina: Not able to install Salesforce CLI pkg

Is anyone else having the same issue or is it me doing something wrong? I downloaded the package from here (https://developer.salesforce.com/tools/sfdxcli) and I got the following error:
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Khan AnasKhan Anas (Salesforce Developers) 
Hi Payam,

Greetings to you!

Catalina requires all apps that are signed with developer IDs to be 'notarized' by Apple. In the absence of an updated version from the developer, you can try the following:
Right-click and select "Open". This may bring up the same dialog, but with an option to Open the file anyway.
You can get round this by removing the quarantine Extended Attribute on the file:
xattr -d com.apple.quarantine /path/to/file

Naturally, this bypasses Apple's security precautions which exist to stop maliciously altered software from running.

Please refer to the below links which might help you further.

https://www.winytips.com/installer-cant-be-opened-because-apple-cannot-check-it-for-malicious-software/

https://apple.stackexchange.com/questions/366542/install-spotify-cant-be-opened-because-apple-cannot-check-it-for-malicious-so

I hope it helps you.

Kindly let me know if it helps you and close your query by marking it as solved so that it can help others in the future. It will help to keep this community clean.

Thanks and Regards,
Khan Anas
Thomas Sesselmann 1Thomas Sesselmann 1
This isn't really a solution. It's a work around. When will this issue be solved? It has now been 6 months and it still exists. How do we escalate this issue to the Salesforce Product Development Team? 
john garrish 11john garrish 11
having the same problem
Michael AgresMichael Agres
I'm seeing this too. Why isn't there a fix at this point?
jitendra nimjejitendra nimje
i was also having similar problem and i tried @khan Anas solution,  opening it by right click and it gave me the option of open.User-added image
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kajal vermakajal verma
I was also facing the same issue. Tried @Khan Anas solution, it worked for me.
1. Go to sfdx-osx.pkg.
2. Right click on it.
3. Open button will appear.