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How to fix ‘error while installing expecting value’?

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Apple is known for its exceptional hardware and software quality. However, just like everything tech, it also suffers from random bugs and glitches from time to time that can sometimes seriously hamper the user experience. 

In this article, we’re talking about the “error while installing expecting value” error that can sometimes appear on your Mac, its causes and what you can do to fix the problem.

Also read: What does invalid MMI code mean? How to fix it?

What causes this error?

The error can sometimes be just a false alarm and just dismissing the error message and trying again can fix the problem. That said, other reasons for the error include the following.

  • Malware infection.
  • Issues with the source code of the program being installed. 
  • Improper update installation. 

Does the error mean you have a malware infection?

While the error may be caused by a legitimate program, it’s also often an infection indication. There’s no way to confirm this using the error message itself, so you’ll have to run a malware scan on your system to see if you’re infected. 

If you are, you should remove the infected files from your PC right away. Not doing so can cause data theft and can further breach the privacy of your computer including but not limited to keyboard/camera/mic access and remote takeovers. 

Also read: 5 Best Tips to Increase Your Online Security Today

How to fix this error?

Here are four fixes you can try out. 

Run a malware scan

The first thing that you should do is run a malware scan on your machine. If the antimalware program detects any infected file, remove or quarantine it from your machine right away. Once done, restart your computer and the error shouldn’t appear anymore.

Try again

As mentioned before, the error can sometimes just be a false alarm. If you were trying to install or run a program, just dismiss the error and try again.

Update macOS

Sometimes, the error can pop up because of a faulty macOS update. Check to see if you’re on the latest version available and if you’re not, update to see if that fixes your problem. 

Step 1: Click the Apple logo on the top left corner of your system, followed by About This Mac.

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Step 2: Click Software Update.

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Step 3: Click Update Now.

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If any updates are available, macOS will install and apply them automatically. Now try restarting your Mac to see if the error persists. 

Redownload the program

As mentioned before, a corrupt installer or executable file can also generate the error. Redownloaded the file you were running from its official sources or run the correct installer again to see if that resolves the issue.

Also read: How to reassign any key on Windows, macOS and ChromeOS?

Yadullah Abidi

Yadullah Abidi

Yadullah is a Computer Science graduate who writes/edits/shoots/codes all things cybersecurity, gaming, and tech hardware. When he's not, he streams himself racing virtual cars. He's been writing and reporting on tech and cybersecurity with websites like Candid.Technology and MakeUseOf since 2018. You can contact him here: