# Error after updating to Ubuntu Server 22.04 - Failed: EVP\_MD\_size assembly:\<unknown assembly\> type:\<unknown type\> member:(null)

**URL:** <https://forum.duplicati.com/t/error-after-updating-to-ubuntu-server-22-04-failed-evp-md-size-assembly-unknown-assembly-type-unknown-type-member-null/14371>\
**Category:** Support\
**Created:** [May 8, 2022, 4:56pm UTC](https://forum.duplicati.com/t/error-after-updating-to-ubuntu-server-22-04-failed-evp-md-size-assembly-unknown-assembly-type-unknown-type-member-null/14371 "2022-05-08T16:56:10Z")\
**Posts on this page:** 1\
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**Author:** ![ts678](https://forum.duplicati.com/letter_avatar_proxy/v4/letter/t/8491ac/32.png) [@ts678](https://forum.duplicati.com/u/ts678)\
**Post date:** [May 11, 2022, 8:39pm UTC](https://forum.duplicati.com/t/error-after-updating-to-ubuntu-server-22-04-failed-evp-md-size-assembly-unknown-assembly-type-unknown-type-member-null/14371/6 "2022-05-11T20:39:10Z")

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> [@foxhollow](#):
>
> Same issue with Fedora 36.

Welcome to the forum @foxhollow

Does Fedora (unlike Ubuntu) make it easy to add libssl1.1 to supplement latest release?  
You wouldn’t want two copies of the openssl command, but I think libaries are versioned.

[https://repology.org/project/openssl/versions](https://repology.org/project/openssl/versions) reveals which distros moved to OpenSSL 3.  
I know Fedora is kind of leading edge, but I’m surprised some rolling distros didn’t move.  
I’m also surprised that it looks like Ubuntu first let loose on an LTS release. Seems risky.

> [@Andor\_Kiss](#):
>
> Workaround here

Thanks for the workaround and the test. This mention should link here from GitHub issue.

[OneDrive backup error message: EVP\_MD\_size assembly:\<unknown assembly\> type:\<unknown type\> member:(null) #4716](https://github.com/duplicati/duplicati/issues/4716)

Anybody here a developer? Please look over [https://github.com/kenkendk/FasterHashing](https://github.com/kenkendk/FasterHashing).

[2.0.2.11\_canary\_2017-10-20](https://github.com/duplicati/duplicati/releases/tag/v2.0.2.11-2.0.2.11_canary_2017-10-20)

> Updated FasterHashing, so it automatically picks up openssl 1.0 and 1.1 on all platforms

Possibly it needs to be taught about OpenSSL 3, but I’m surprised it doesn’t fall back safely:

> falling back to the managed implementation if none are found.

as documented, after [Supported libraries](https://github.com/kenkendk/FasterHashing#supported-libraries) (OpenSSL 1.0 and 1.1 API) are found unavailable.  
An open question needing test and investigation is whether the version 3 API is compatible.

Actually getting FasterHashing changed (if that is required) requires its owner’s scarce help.  
Maybe a less elegant temporary workaround to at least keep running (slower) can be found.

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