Cannot be opened because it is from an unidentified developer

Software
1

I am enjoying the most recent MPU episode on Preview but I have a consistent issue with it. I frequently get this message: . . . cannot be opened because it is from an unidentified developer. I have Googled and know that I can set it to open anyway in system preferences but that only lasts a little while. It is SO weird that I would get that message from system application. On the other hand, PDF Expert opens each and every time.

(I have searched the forum with several key words and didn’t find a solution).

2

You 100% should not be getting that message from a system application. It makes me think you might have something wrong with your installation of macOS.

The way that I usually handle 3rd-party apps that say this is by holding down the
Control key and then choose “Open”.

That should give you an option to open it “anyway”.

If this problem persists, I would recommend a clean installation of macOS, because something has gone “wonky”.

3

I have had this issue for several iterations of the OS. I will try your solution but the thought of doing a clean install will need to wait unti the end of the semester!

4

Opening up an old thread because In spite of following the instructions from Apple, use control click on the app and select open from there I still cannot open anything not “approved” even my own app that I just created with PyInstaller. I never get the open anyway message in the Security section of system preferences. I really need to see how the app behaves and have got to get this running in someplace outside of PyCharm!

Any suggestions? (and No I can’t do a clean install as I have to get some testing done today and an install takes overnight on my machine.)

5

This changed with Sequoia:

6

It hasn’t changed, has it? That looks like the same way it has always been, what part changed?

Anyway, she said she is not getting the message under the security section. No idea how to do if you don’t get the security prompt.

7

It has changed as you can no longer control click. Here are the instructions for Sonoma:

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8

Those are the instructions I tried. Those actually say to control click. They also say that you can override it on the button under security but I never got the option to load anyway and no override button in security.

9

Are you on macOS 14.x or 15.x? The instructions you used are for 14.x.

10

I’m on 14, Sonoma. It is not working as described.

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11

You could try the method detailed here to enable the allow applications from anywhere setting.

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12

Thanks, will give that a try after sheep work today.

13

That worked. I turned off all the gatekeeper stuff and also found out how to run the app from within terminal, so I can see the debug messages and am working o my way to a functioning distribution app.

THANKSQ

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