Treatment of Mac applications that cannot open or corrupt files

Method 1

Most users install Mac apps,You often encounter prompts " damaged,I can't open it.。You should move it to the Trash " or " Can't open,Because it comes from an unidentified developer. " ,As shown in the following image:



This is the case.,The solution is simple.,The steps are as follows:

1. Open itSystem preferencesInterface,EnterSecurity and privacy

2. Tap the lock icon in the lower left corner,Unlock change permissions

3. Apps that will be allowed to download from the following locations,Change to Any source " ,And then open the app.


If there is no "any source" option (macOS Sierra 10.12 and above may be used),Follow these steps:

  1. Open Terminal (
  2. Copy and paste sudo splyl –master-disable,Press enter
  3. Enter your account password,Press enter to confirm execution (the password does not appear,Enter directly)


If any source has been turned on,But still can't open (macOS Catalina 10.15 or more will encounter) follow these steps:

1、Open the terminal;

2、Enter the following command,Enter;

sudo xattr -d

Attention:/Applications/ Change to your app path

3、Just restart the app。

Detailed step reference:macOS Catalina (macOS 10.15) Damaged can't open solution


Method two

If you install an app,Appear " Can't open,Because it comes from unidentified developers. ,and prompt your software where and when to download disk images。As shown in the:



This is the case.,Here's how:

1、After putting the software into the Application,Click on the software Right-on ,As shown in the:



2、After the following dialog box is ejected,You open it.。



Method 3

The latest version of some software is available in the macOS Mojave 10.14 Systems and aboveThere will be an error that cannot be used,You can run by entering the following code in the terminal:

sudo codesign –Force –Deep –sign – File location (just drag the app in)

(Note the last one And File location There's one in the middle. Space)


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