# Civilconnection2021 issue

**URL:** <https://forum.dynamobim.com/t/civilconnection2021-issue/101863>\
**Category:** Revit\
**Tags:** python, dynamo, civil3d\
**Created:** [June 13, 2024, 6:27am UTC](https://forum.dynamobim.com/t/civilconnection2021-issue/101863 "2024-06-13T06:27:42Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![ahmedroushdy01](https://avatars.discourse-cdn.com/v4/letter/a/a88e4f/32.png) [@ahmedroushdy01](https://forum.dynamobim.com/u/ahmedroushdy01)\
**Post date:** [June 13, 2024, 6:27am UTC](https://forum.dynamobim.com/t/civilconnection2021-issue/101863/1 "2024-06-13T06:27:42Z")

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Hello every one, hope you a good day.  
I am trying to use **civil connection 2021** and it say when running civil application node

`( CivilApplication..ctor operation failed. Object reference not set to an instance of an object.)`

I have Revit **2021.1.2** and civil 3D **2021** and the dynamo version is **2.6**