App can't be opened because it is from an unidentified developer

Question

I installed Mac OS X Mavericks (10.9) yesterday and since then I am not able to start my Eclipse. I am attaching a screenshot of the message I see.

Is there a workar

Answer 1

you can modify the gatekeeper settings by running the following command

To disable to allow apps from anywhere to be installed use the following command in terminal ::

sudo spctl --master-disable

To re-enable use the following command

sudo spctl --master-enable