Whenever I click on the Outlook app on my macbook air, it shows the mail opening but after that it shuts down and shows me a screen that says "microsoft reporting error, sorry for the inconvinence"

The issue you're experiencing with Outlook on your MacBook Air, where it crashes and shows a "Microsoft reporting error" message, could be related to a few common causes. One possibility is that the underlying file system is formatted as case-sensitive, which can lead to Outlook not being able to find necessary files. Specifically, if the file named OsfCore.framework is present but named incorrectly (as osfcore.framework), it can cause Outlook to crash upon startup.

To resolve this, you can try renaming the OsfCore.framework file to osfcore.framework. Here’s how:

1. Open the Applications folder in Finder.
2. Right-click on Microsoft Outlook and select Show Package Contents.
3. Navigate to the Frameworks folder and locate OsfCore.framework.
4. Rename it to osfcore.framework.

If this does not resolve the issue, ensure that your Office application is installed in the correct path and that there are no duplicate instances of the application. You may also want to check for any updates to the application or reinstall it if necessary.

References:

• Outlook 2016 for Mac crashes immediately after startup
• "Microsoft program cannot be opened because of a problem" error when you start an Office program

Dear @Hegard, Lindsey A,

Welcome to Microsoft Q&A Forum!

I’m sorry you’re running into Outlook closing unexpectedly and showing the Microsoft Error Reporting screen, that’s frustrating, and I know it’s blocking your day. I’m here to give you some suggestions to try to see if they can help:

Could you please confirm whether the error you’re seeing matches this issue?

If yes, please follow the steps in that article to resolve it: Outlook for Mac crashes unexpectedly on startup or during mail synchronization

You can use Outlook on the web to see if the issue still persists. If not, you can use Outlook Web as a temporary workaround while we are fixing the Outlook app.

Besides that, I found a case that was partially similar to your situation so you can try the method in this to see the result: https://dori-uw-1.kuma-moon.com/en-us/answers/questions/4641550/outlook-macbook-crash

If the none of these suggestions can fix it, please send me a screenshot of the error window (or the first lines of the crash report) and your Outlook/macOS versions, and I’ll do more research for you.
Note: please kindly send attachments in the Private Message of this thread because this is a public forum and it can help to protect your personal information.

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