After Apple quietly upgraded the system, some software signatures became invalid and many software could not be used. For example, when this software is opened, it will prompt an unexpected exit, and some software will prompt a crash.

Today, Bian Xiao will teach you how to solve this problem. At present, there are two ways to solve it.

Causes of events leading to the invalidation of TNT partial signature

According to Engadget, an American technology media, Zoom, a video conferencing software developer, previously released an emergency patch to fix the vulnerability of the Mac camera. Apple is also quietly upgrading the macOS and eliminating hidden network servers. Zoom has been exposed before. When the user installs the Zoom video conference application, the hidden server will be quietly implanted into the user's Mac device, so the camera is at risk of being hijacked by hackers. Zoom has released a patch, so Apple doesn't need to update the system, but it is safer after the upgrade, and users can avoid attacks even if they use the old version of Zoom. Zoom also works with Apple to test and fix patches. The patch will not affect the normal function, but you need to get the user's permission when you start the App.

Solution of Mac application crash

1. Install the Apple Command Line Tool.

Open the terminal, enter the following code, and then click Agree xcode- Select-Install in the prompt box.

Open the terminal and enter the following code sudo code sign-force-deep-sign-file location (just drag the application to the terminal directly).

Then enter your power-on password and click Enter.

For example: clean mymac sudo code sign-force-deep-sign-/applications/clean mymac \ x.app.

Second, the use of Xcode is as follows:

First, download and install xcode. The software must be installed in two ways. You can download xcode by clicking the link below. After installation, you must run xcode once. (The software is large, leaving 20G installation space. Note: xcode must be turned on and run once after it is installed.

Xcode (development tool) for Mac

Use the troubleshooting tool CodeSigner.

First, go to our website and download crash repair tools through search. (or click the link below to download it immediately) After downloading and installing, open the app, and a pop-up window will appear after opening, indicating the application bar.

CodeSigner for Mac (application re-signing crash repair tool)

Find the software that can't open the crash, and click Open.

After a while, this window will pop up. Click the second depth.

After waiting for a period of time, the prompt in the upper right corner is successful, indicating that the software has passed the certification again.

Open the repair software and see that there is no problem with this software. There is no guarantee that every crashed software will work. We will try our best to repair the crashed Mac software as soon as possible. )

Add certificate signature authentication through the terminal.

First, open the terminal and enter the command code design-force-deep-sign-

Drag the crashed application into the terminal and press Enter.

The above is Bian Xiao's "Apple Computer Software Application Open Unexpected Exit Crash Solution".