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 workaround for this?
I found a solution in Fix the “App can’t be opened because it is from an unidentified developer” Error in Mac OS X.
Control Click the application in the Applications folder, not lauchpad. Choose open and then you get an options to actually open it.
Open terminal, go to extracted folder of eclipse and run the following command:
An easier way to open a document from an unidentified developer, if you know it's safe, is to control-click on the file icon and then select "Open." You will then be given the option of opening it regardless of its unidentified source.
I had the same problem, Eclipse would not start. Found this link and it worked like a charm:
Can't click Menu Bar Items in Eclipse
Java is messed-up on Maverick, need to download and install from here: http://support.apple.com/kb/DL1572?viewlocale=en_US&locale=en_US
It is prohibiting the opening of Eclipse app because it was not registered with Apple by an identified developer. This is a security feature, however, you can override the security setting and open the app by doing the following:
The last step will add an exception for Eclipse to your security settings and now you will be able to open it without any warnings.
Note, these steps work for other *.app apps that may encounter the same issue.
Easy....
In terminal type the command:
Once you click enter it will no longer have that problem. Its annoying that apple adds a quarantine to files automatically. I do not know how to turn this off but there probably is a way...