Sourcetree Does Not Open in a MacOS 10.15.2 Environment

[kiusau]

I am leasing a brand new iMac with MacOS 10.15.2 and have just downloaded Sourcetree 4.0.1 from the Sourcetree website.  I am greeted with the following error message.

"'Sourcetree' can’t be opened because Apple cannot check it for malicious software."

Please advise.

Roddy

[Ben_Mach]

Recently stumbled upon this issue too. If you're still having issues then try the following method: 

1) open 'system preferences' 
2) navigate to 'security & privacy' 
3) allow the use of Sourcetree

[nikhilk]

This is not the right solution for this issue. This is potentially very dangerous.

You should contact Atlassian , they should fix this.

I don't understand why they haven't solved this issue.