Installing Serenade in MacOS 10.12 Sierra and higher.
The normal installation procedure in MacOS is to open the downloaded .dmg file, drag the included folder to your applications folder en start the Serenade app from within its folder in the applications folder.
Due to a change in the security system in Sierra you will get the following error: "Serenade cannot be opened because of a problem". You can fix this as follows.
Start the Terminal (find the Terminal app in the Applications folder) and type (or cut and paste):
xattr -r -d com.apple.quarantine /Applications/Serenade\ v5.2/serenade.app
for the full version or
xattr -r -d com.apple.quarantine /Applications/Serenade\ v5.2\ Demo/serenade.app
for the demo.
After that you can start Serenade the normal way. You need to do this action only once after installation.
More info on this subject at: http://krypted.com/mac-security/app-translocation-services-os-x-10-12/
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