# Unable to launch Manager

**URL:** <https://forum.manager.io/t/unable-to-launch-manager/28119>\
**Category:** Uncategorized\
**Created:** [May 7, 2020, 11:57am UTC](https://forum.manager.io/t/unable-to-launch-manager/28119 "2020-05-07T11:57:27Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![GAYATRIDAMBAL](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.manager.io/gayatridambal/32/23881_2.png) [@GAYATRIDAMBAL](https://forum.manager.io/u/GAYATRIDAMBAL)\
**Post date:** [May 7, 2020, 11:57am UTC](https://forum.manager.io/t/unable-to-launch-manager/28119/1 "2020-05-07T11:57:27Z")

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Sir I have updated to new version today (07-05.2020) to new version 20.5.17. After that i am getting the message

 ![Screenshot (19)](https://us1.discourse-cdn.com/flex019/uploads/manager1/original/3X/6/1/61a4f8274afe3b30a720213ae50c46616ded2f5c.jpeg) “System.missingmethod exception” and manager is not loaded. please guide me to resolve this issue.

Thanking you sir

Gayatri dambal

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**Author:** ![lubos](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.manager.io/lubos/32/62798_2.png) [@lubos](https://forum.manager.io/u/lubos)\
**Post date:** [May 7, 2020, 11:59am UTC](https://forum.manager.io/t/unable-to-launch-manager/28119/2 "2020-05-07T11:59:55Z")

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Install .NET Framework 4.6.1 or higher from [Download .NET Framework | Free official downloads](https://dotnet.microsoft.com/download/dotnet-framework)

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**Author:** ![GAYATRIDAMBAL](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.manager.io/gayatridambal/32/23881_2.png) [@GAYATRIDAMBAL](https://forum.manager.io/u/GAYATRIDAMBAL)\
**Post date:** [May 8, 2020, 8:01am UTC](https://forum.manager.io/t/unable-to-launch-manager/28119/3 "2020-05-08T08:01:02Z")

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Sir thank you very much for your guidance. Now Manager is opening after installation of .Net 4.8. But when I see in the windows features it is still showing 4.5 advanced. Whether any further action is required sir?

Thanking you  
Gayatri Dambal

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**Author:** ![sharpdrivetek](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.manager.io/sharpdrivetek/32/34244_2.png) [@sharpdrivetek](https://forum.manager.io/u/sharpdrivetek)\
**Post date:** [May 8, 2020, 8:03am UTC](https://forum.manager.io/t/unable-to-launch-manager/28119/4 "2020-05-08T08:03:45Z")

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no further action from the user is required if the .NET installation completed successfully.

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**Author:** ![Joe91](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.manager.io/joe91/32/35781_2.png) [@Joe91](https://forum.manager.io/u/Joe91)\
**Post date:** [May 9, 2020, 10:09am UTC](https://forum.manager.io/t/unable-to-launch-manager/28119/5 "2020-05-09T10:09:48Z")

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Can the Windows Download installer check that a compatible version of the .NET framwork is installed when it is launched and, if not, issue a message and not install?

Or at least, issue a warning on the download page.

I have a vague memory that this use to happen or maybe that was for a different piece of software.

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**Author:** ![Ealfardan](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.manager.io/ealfardan/32/63166_2.png) [@Ealfardan](https://forum.manager.io/u/Ealfardan)\
**Post date:** [January 18, 2023, 2:55pm UTC](https://forum.manager.io/t/unable-to-launch-manager/28119/6 "2023-01-18T14:55:33Z")

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