Cant get Opentoonz to open on Mac

[sidneyeerie]

I have installed and uninstalled Opentoonz three times now and I can not get the program to run. Can someone please give me some help?

[Rick Wolff]

I just got an alert that the OS stopped me from installing "because it is from an unidentified developer."
It then said, "Your security preferences allow installation of only apps from the Mac App Store and identified developers."

The Security preference panel knows I'm having difficulty opening Opentoonz, and gives me an "open anyway" button, thus allowing me to keep my default setting.
Hope that helped.

[Matitanimata]

which OS? check the requirements you need OS X 10.9 or later (I have an old imac with OS X 10.7 and it doesn't start, no problem with my macpro with el capitan.

[Philipp Stumpp]

Try to open it by "right-clicking" the Installation. Choose "open" from the menu which appears next to your installation icon you just "right-clicked"