I’m trying to install the Mono Framework, MRE 2.11.4, on Mac OS X 10.8.2 Mountain Lion. When I double click on the downloaded package file, I get the maddening message ‘”MonoFramework – MRE-22.11.4.macos10.xamarin.x86.pkg” can’t be opened because it is from an unidentified developer.’ Okay, now what? How do I install this on my Mac? Thanks for reading.
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Command click it to open the context menu and select “Open”. The next dialog will give you a chance to run it. This is the official way of bypassing the “Gatekeeper” protection.