# Email Read Error

**URL:** <https://community.linx.software/community/t/email-read-error/441>\
**Category:** Support\
**Created:** [January 29, 2020, 5:05pm UTC](https://community.linx.software/community/t/email-read-error/441 "2020-01-29T17:05:12Z")\
**Posts on this page:** 1\
**Showing post:** 21

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**Author:** ![darkonesic82](https://community.linx.software/community/letter_avatar_proxy/v4/letter/d/87869e/32.png) [@darkonesic82](https://community.linx.software/community/u/darkonesic82)\
**Post date:** [February 10, 2020, 10:25am UTC](https://community.linx.software/community/t/email-read-error/441/21 "2020-02-10T10:25:57Z")

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After I upgrade the designer to a new version I got the following error:

StartSolution failed LoadSolution failed Error resolving type specified in JSON ‘Twenty57.Linx.Plugin.Common.Types.CompiledTypeReference, Twenty57.Linx.Plugin.Common, Version=17.0.0.0, Culture=neutral, PublicKeyToken=d7f03d358506bc3d’. Path ‘$type’, line 1, position 173. Could not load assembly ‘Twenty57.Linx.Plugin.Common, Version=17.0.0.0, Culture=neutral, PublicKeyToken=d7f03d358506bc3d’.

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