# UndefVarError: DataLoader not defined
**URL:** https://discourse.julialang.org/t/undefvarerror-dataloader-not-defined/82759
**Category:** Tooling
**Created:** [June 14, 2022, 3:30pm UTC](https://discourse.julialang.org/t/undefvarerror-dataloader-not-defined/82759 "2022-06-14T15:30:34Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@soczek322](https://discourse.julialang.org/u/soczek322)
#### Post date: [June 14, 2022, 3:30pm UTC](https://discourse.julialang.org/t/undefvarerror-dataloader-not-defined/82759/1 "2022-06-14T15:30:35Z")
Hi,
I have the latest flux version and I’ve tried everything I could find online but I still get this error when trying to use the DataLoader. Anyone encounter it before and found a fix (if it changes anything I’m running my code out of google colab).
Thanks!
---
### Author:  [@ToucheSir](https://discourse.julialang.org/u/ToucheSir)
#### Post date: [June 15, 2022, 4:34am UTC](https://discourse.julialang.org/t/undefvarerror-dataloader-not-defined/82759/2 "2022-06-15T04:34:34Z")
Are you just trying to use it unqualified without explicitly importing it first? Note that this will not work:
```julia
using Flux
dl = DataLoader(...) # errors, because Flux does *not* export it
```
You’ll either have to include `(using|import) Flux: DataLoader` or prepend the module name as in `dl = Flux.DataLoader(..)`.
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### Author:  [@soczek322](https://discourse.julialang.org/u/soczek322)
#### Post date: [June 15, 2022, 12:33pm UTC](https://discourse.julialang.org/t/undefvarerror-dataloader-not-defined/82759/3 "2022-06-15T12:33:55Z")
I’ve tried using Flux.Data: DataLoader
using Flux: DataLoader
both after import Flux and it still doesn’t work. It’s the only function from flux I’m having this problem with. Thanks!
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### Author:  [@ToucheSir](https://discourse.julialang.org/u/ToucheSir)
#### Post date: [June 15, 2022, 2:56pm UTC](https://discourse.julialang.org/t/undefvarerror-dataloader-not-defined/82759/4 "2022-06-15T14:56:06Z")
First things first, make sure your Flux version is up to date (at least v0.13). If not, then check your environment to see if any other dependencies are holding it back (you can search on Discourse for guides on how to do that). If everything looks there (and post your package version info here if it does so we can make sure), then post the _exact_ code, error + stacktrace you’re encountering when trying to use DataLoader. Per [Please read: make it easier to help you](https://discourse.julialang.org/t/please-read-make-it-easier-to-help-you/14757), “doesn’t work” is not enough to work with 🙂