Mac Build not running Unity 4.6 & 4.7

I have an old project I'm trying to make builds from.
It all goes to plan but the builds do not open and run on my Mac when double clicked on.
They do not open at all.
It worked fine up until four years ago, and a PC build from the Mac runs fine.
A build I made four years ago of the same project runs fine.

I have tried two different projects and temporarily upgraded to 4.7 in case that fixed it but it made no difference at all to the issue so I went back to 4.6 from Time Machine as I was worried about an upgrade breaking things in the project.

I've seen this issue from people making Games on PC's and exporting to Macs but not on Macs running on Macs.

There are a variety of good reasons why I can't start again in the latest version and I would like to fix this if possible as the project represents a considerable amount of work.
Huge thanks in advance for any suggestions.

PS, I'm from the Art side so please keep explanations simple!
Thank you!

 

Probably 32 bit vs 64 bit, what mac os version are you running?

 

Hi, I'm on El Capitan, OS 10.11.6
Thank you.
I'm using Universal build.
I tried the others but they didn't work either.

 

When I double click on it the icon starts to expand as though it was opening but then stops and nothing happens.
I can right click and see the package contents and it all looks fine as far as I can see.
In "get info" it shows up as an application.
It just doesn't initiate at all.
I sent Maxine a copy of it by Wetransfer.

 

Right click and open is to bypass osx security permission

 

Yes.
I wanted to see if there was a permissions issue with any of the files inside, but I couldn't see anything obvious.

 

Try moving the app to the applications folder

and its not about any of the files inside the app, Try right click > open
Not right click > open contents

 

Right click/ open doesn't work either, I tried that.

But double clicking or right click open works fine on the build of the same project from four years ago.

With extreme scepticism, I moved it to the Applications folder.
Now it works!!!

This is weird!
Older builds work from any folder, anywhere, what has changed?
Is it a Mac preferences thing?

Thank you, that was genius!

 

I think its because MacOS has increased its security, you can also open osx preferences and look for allow open app from anywhere

https://macpaw.com/amp/how-to/allow-apps-anywhere

 

Thank you very much!
I was really stuck on that!

I've changed my security preferences in System Preferences, but it still insists on only working from the Applications folder.
I can cope with that.
At least it's working!