# Why is ProxyDefinitionManager NULL?

**URL:** https://discourse.paraview.org/t/why-is-proxydefinitionmanager-null/15312
**Category:** Development
**Created:** [August 27, 2024, 2:26pm UTC](https://discourse.paraview.org/t/why-is-proxydefinitionmanager-null/15312 "2024-08-27T14:26:15Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![joint](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/j/dc4da7/32.png) [@joint](https://discourse.paraview.org/u/joint)
#### Post date: [August 27, 2024, 2:26pm UTC](https://discourse.paraview.org/t/why-is-proxydefinitionmanager-null/15312/1 "2024-08-27T14:26:15Z")

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Hello!

I ve tried to add my custom view and representation

But have faced some problems

Seems, ProxyDefinitionManager = NULL causes them

Why so and how to fix it?