# devonthink quit upon opening

**URL:** <https://discourse.devontechnologies.com/t/devonthink-quit-upon-opening/87850>\
**Category:** DEVONthink\
**Created:** [October 16, 2026, 10:18am UTC](https://discourse.devontechnologies.com/t/devonthink-quit-upon-opening/87850 "2026-10-16T10:18:46Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![michel1](https://discourse.devontechnologies.com/letter_avatar_proxy/v4/letter/m/919ad9/32.png) [@michel1](https://discourse.devontechnologies.com/u/michel1)\
**Post date:** [October 16, 2026, 10:18am UTC](https://discourse.devontechnologies.com/t/devonthink-quit-upon-opening/87850/1 "2026-10-16T10:18:46Z")

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Hello, my devon think 2 suddenly stopped opening. I

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**Author:** ![eboehnisch](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/eboehnisch/32/38699_2.png) [@eboehnisch](https://discourse.devontechnologies.com/u/eboehnisch)\
**Post date:** [October 16, 2026, 10:19am UTC](https://discourse.devontechnologies.com/t/devonthink-quit-upon-opening/87850/2 "2026-10-16T10:19:17Z")

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Welcome to our forum. If you give us a bit more context we might be able to assist you better 🙂

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**Author:** ![michel1](https://discourse.devontechnologies.com/letter_avatar_proxy/v4/letter/m/919ad9/32.png) [@michel1](https://discourse.devontechnologies.com/u/michel1)\
**Post date:** [October 16, 2026, 10:43am UTC](https://discourse.devontechnologies.com/t/devonthink-quit-upon-opening/87850/3 "2026-10-16T10:43:21Z")

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Sorry, I pressed “create” too early…🙂.

My point is: I use Devonthink Pro 2 since 2017 without any problems. Yesterday though, it did not open, giving me the message:

 ![image](https://devontech-discourse.s3.dualstack.us-east-1.amazonaws.com/uploads/original/3X/8/1/81a93d477e93da38bf0b32c0ea0399329e7dc1d9.png)

When I click “reopen” the problem remains, giving me the message (in Dutch) saying to Reopen, Ignore or Report (to sent a report to Apple).. Clicking on Reopen, the same message reappears.

 ![image](https://devontech-discourse.s3.dualstack.us-east-1.amazonaws.com/uploads/original/3X/b/8/b844f5b55ba02923d8ef507d6261db96c05c498e.png)

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**Author:** ![cgrunenberg](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/cgrunenberg/32/7172_2.png) [@cgrunenberg](https://discourse.devontechnologies.com/u/cgrunenberg)\
**Post date:** [October 16, 2026, 10:46am UTC](https://discourse.devontechnologies.com/t/devonthink-quit-upon-opening/87850/4 "2026-10-16T10:46:47Z")

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Which version of macOS do you use? DEVONthink 2.x is not compatible to macOS 27.x Golden Gate.

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**Author:** ![michel1](https://discourse.devontechnologies.com/letter_avatar_proxy/v4/letter/m/919ad9/32.png) [@michel1](https://discourse.devontechnologies.com/u/michel1)\
**Post date:** [October 16, 2026, 10:58am UTC](https://discourse.devontechnologies.com/t/devonthink-quit-upon-opening/87850/5 "2026-10-16T10:58:47Z")

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The problem started with Tahoe, then trying to solve it I upgraded my Mac to … Golden Gate.

So I guess, I need to buy a the latest Devonthink version? But can I migrate my data in some way, not being able anymore to open Devonthink 2?

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**Author:** ![cgrunenberg](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/cgrunenberg/32/7172_2.png) [@cgrunenberg](https://discourse.devontechnologies.com/u/cgrunenberg)\
**Post date:** [October 16, 2026, 11:05am UTC](https://discourse.devontechnologies.com/t/devonthink-quit-upon-opening/87850/6 "2026-10-16T11:05:33Z")

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DEVONthink 4 is able to open the databases (`.dtBase2`). But first I would suggest to do a backup of your databases and to open a support ticket by sending an email to support - at - [devon-technologies.com](http://devon-technologies.com). Please attach the crash reports too. Thanks.