# What are the basis of this warning: \[DynamicPPL\] attempt to link a linked vi?
**URL:** https://discourse.julialang.org/t/what-are-the-basis-of-this-warning-dynamicppl-attempt-to-link-a-linked-vi/98919
**Category:** New to Julia
**Tags:** question, warning, turing
**Created:** [May 16, 2023, 9:10am UTC](https://discourse.julialang.org/t/what-are-the-basis-of-this-warning-dynamicppl-attempt-to-link-a-linked-vi/98919 "2023-05-16T09:10:35Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Sahil\_Khan](https://discourse.julialang.org/u/Sahil_Khan)
#### Post date: [May 16, 2023, 9:10am UTC](https://discourse.julialang.org/t/what-are-the-basis-of-this-warning-dynamicppl-attempt-to-link-a-linked-vi/98919/1 "2023-05-16T09:10:35Z")
I’m stuck because of this warning for several days now. I don’t see any obvious issue in my code. I have been through posts, one of recommendation was to use **Turing.setadbackend(:zygote)** though it didn’t work for me. I’m still facing the issue.
Can someone explain its basis why we see this warning while inference?
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### Author:  [@lrnv](https://discourse.julialang.org/u/lrnv)
#### Post date: [May 16, 2023, 9:29am UTC](https://discourse.julialang.org/t/what-are-the-basis-of-this-warning-dynamicppl-attempt-to-link-a-linked-vi/98919/2 "2023-05-16T09:29:02Z")
It will be very hard to help you without having a piece of code to run. Could you design a simple minimal working exemple that produces the error you are refering to ?
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### Author:  [@Sahil\_Khan](https://discourse.julialang.org/u/Sahil_Khan)
#### Post date: [May 16, 2023, 10:22am UTC](https://discourse.julialang.org/t/what-are-the-basis-of-this-warning-dynamicppl-attempt-to-link-a-linked-vi/98919/3 "2023-05-16T10:22:58Z")
Thanks for your reply !!
Issue is that I cant share the code and for building a small example I must first know basis of warning. Thats why I’m asking what it even mean : attempt to link a linked vi?