Mac microsoft teams javascript error

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‎Jan 17 2021 03:28 PM

Successfully download and install Teams; however it immediately goes to a single error window that says:

Clicking on OK, may make exception go away other times it simply does nothing.  I do have O365 installed.

Fix Microsoft Teams JavaScript error on Mac

Microsoft Team can be such a stubborn program at times, especially when it comes to installing the tool on Mac. While there is a dedicated version of Teams for Mac computers, sometimes the application seems to have a will of its own and refuses to install on Apple devices. . Perhaps the most frequent Teams installation error on Mac is the JavaScript error. Don’t worry, we’ll point you
in the right direction and show you how you can fix this.

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How to fix Microsoft Teams JavaScript error on Macbook

Make sure you have administrator rights

To install Microsoft Teams on Mac, you need administrator rights. While you can install Teams on Windows 10 computers without administrative rights, you cannot on Mac. So, make sure to use an administrator account when installing MS Teams
on macOS.

Of course, if you can’t get the necessary administrator rights, the safest solution is to simply use Teams Web in Safari or Chrome. However, Teams for web users will always have a lower experience than Teams desktop app users.

Install computers in a shared location

You can also install Teams in a shared location with the preparation of the administrator and then copy the application to your local folder. These are the steps to follow:

  1. Download
    and install Teams on a macOS machine.
  2. Then copy the to a shared location.
  3. Copy the application to your local application folder.
  4. Launch Teams and check if the app is fully functional.

Change file ownership

Several users managed to fix this problem by changing the Teams file ownership settings. To achieve this, we will use the sudo chown command to force the file ownership change.

  1. Go Applications, Select Utilitiesand launch the Terminal.
  2. Then run the following command: sudo chown YourUserName ~ / Library / Application Support / Microsoft / Teams.
  3. Check if you can install Teams on your Mac now.

If the error persists, set the permissions with your username for the entire Microsoft folder. To do that, run this command in Terminal: sudo chown YourUserName ~ / Library /
Application Support / Microsoft
. Check the results.

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Delete Microsoft folder

If Teams is not the first Microsoft program you installed on your computer, then there should be a Microsoft folder in ~ / Library / Application Support.

  1. Exit the Teams installation window and run Terminal.
  2. Writes
    rm -rf ~ / Library / Application Support / Microsoft / Teams. This will delete all your files from Teams.
  3. Remove the ~
    / Library / Application Support / Microsoft
    folder too.
  4. Empty your Trash, restart your Mac, and try installing Teams again.

By the way, if the Microsoft folder is invisible, type AppleShowAllFiles true In the terminal.

Change Microsoft folder sharing and permissions

Alternatively, you can change all folder sharing and permission settings from Microsoft to Read and Write for all users.

  1. Uninstall Teams (or at least
    the files the app managed to install before the JavaScript error appeared).
  2. Then navigate to / Library / Application support.
  3. Find the Microsoft folder and select Get information.
  4. Unlock the folder and change absolutely all sharing and permissions to Read write to all users.
  5. Save your changes and see if you can install Teams.

Manually create the teams folder

That annoying
JavaScript error can occur because your Mac was unable to create the Teams folder correctly. Manually creating the folder may correct the error.

  1. Navigate to / Users / YourUserName / Library / Application Support / Microsoft.
    • If the Library folder is hidden, right-click to See options and select Show library folder.
  2. Check if there is a folder named Teams.
  3. If you can’t find the folder,
    create it manually.
  4. Launch Teams to see if you can complete the installation process. Teams should automatically populate that folder as soon as you start it.


If your Mac keeps throwing the annoying JavaScript error when installing Teams, this indicates that you don’t have the necessary permissions to install the app. Change the sharing and permission settings or take ownership of the Microsoft folder. Manually creating the Teams folder can
also help.

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Please let us know how the troubleshooting process went. Click on the comments below and let us know which solution worked for you.

How do I fix JavaScript error on Mac?

How to Fix Microsoft Teams JavaScript Error on Macbook.

Make Sure You Have Admin Rights..

Install Teams to a Shared Location..

Change File Ownership..

Delete the Microsoft Folder..

Change Sharing and Permissions For Microsoft Folder..

Manually Create the Teams Folder..


How do I fix JavaScript errors in Microsoft Teams?

How to fix the Microsoft Teams error “A Javascript error occurred in the main process”.

Use Win/Start+R..

Enter appwiz. cpl..

Hit “OK”.

Uninstall “Visual C++” files..

Reinstall Microsoft Visual C++ Redistributables..

How do I fix Microsoft team error on Mac?

Delete and reinstall the Teams application
It’s time to uninstall and reinstall the Teams App on your Mac. Please restart your Mac after uninstalling Teams, and then download the Teams App from the Mac App Store. Deleting the program deletes all files and folders associated with the Teams App from your Mac.

How do you fix a JavaScript error occurred in the main process?

Re: Windows – A JavaScript error occurred in the main process.

Open Control Panel > Uninstall a program..

Locate latest Microsoft Visual C++ (64bit) and click on Change (If you’re using 64 bit version of Teams, maybe you need x86).

Click on Repair..

Enter your Admin credentials to perform repair..

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