# AutoTrain - unable to upload the dataset
**URL:**
**Author:**  [@inouts](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Fu%2Finouts)%5C
**Post date:** [August 8, 2022, 8:48pm UTC](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Ft%2Fautotrain-unable-to-upload-the-dataset%2F21392%2F1 "2022-08-08T20:48:44Z")
Hi,
I wanted to try AutoTrain but Iâm unable to upload the dataset (a Token Classification task).
After I choose the file to upload there is a modal to choose the Split type (Training / Validation / Auto) and map columns. After clicking âAdd to projectâ button _âUploading your file. This may take up to a few minutes, depending on your connection speed.â_ message appears and it never disappears. From the Network tab in the browserâs dev tools I can see that there is some kind of CORS error.
AutoTrain project id: [AutoTrain - HuggingFace](https://ui.autotrain.huggingface.co/11576/data)
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**Author:**  [@radames](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Fu%2Fradames)%5C
**Post date:** [August 8, 2022, 9:41pm UTC](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Ft%2Fautotrain-unable-to-upload-the-dataset%2F21392%2F2 "2022-08-08T21:41:18Z")
hello @inouts, indeed your data was not upload. Could you share more details? which browser were you using? whatâs the file format and size? thanks
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**Author:**  [@inouts](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Fu%2Finouts)%5C
**Post date:** [August 8, 2022, 10:45pm UTC](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Ft%2Fautotrain-unable-to-upload-the-dataset%2F21392%2F3 "2022-08-08T22:45:21Z")
@radames itâs a 193MB CSV file. At first I tried Firefox a few times and then Chrome.
After first (failed) try Iâve noticed that a new dataset was created - but it wasnât connected to the AutoTrainâs project. Projectâs AutoTrain data page was still empty. So I deleted it in the hope that the whole process will be successful in the next try.
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**Author:**  [@inouts](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Fu%2Finouts)%5C
**Post date:** [August 9, 2022, 8:12am UTC](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Ft%2Fautotrain-unable-to-upload-the-dataset%2F21392%2F4 "2022-08-09T08:12:12Z")
There is currently another error when trying to upload a file:
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**Author:**  [@sbrandeis](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Fu%2Fsbrandeis)%5C
**Post date:** [August 9, 2022, 10:05am UTC](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Ft%2Fautotrain-unable-to-upload-the-dataset%2F21392%2F5 "2022-08-09T10:05:01Z")
Hello @inouts
When creating a project in AutoTrain, an associated dataset repo is created on the HuggingFace Hub to store your data files.
When you upload a file through AutoTrain, it tries to push it to that dataset repo. Since you deleted it, that dataset repo cannot be found (hence the 404 - not found error).
Creating a dataset repo named âautotrain-data-inouts-token-classificationâ on the HuggingFace Hub should solve your last issue.
Let me know if it helps!
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**Author:**  [@inouts](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Fu%2Finouts)%5C
**Post date:** [August 9, 2022, 10:43am UTC](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Ft%2Fautotrain-unable-to-upload-the-dataset%2F21392%2F6 "2022-08-09T10:43:46Z")
Thanks @sbrandeis ! I recreated the dataset manually and there is no more 404 error.
Weâre back to the first error đ :
I plan to convert the dataset to the json format and see if it helps.
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**Author:**  [@inouts](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Fu%2Finouts)%5C
**Post date:** [August 9, 2022, 11:05am UTC](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Ft%2Fautotrain-unable-to-upload-the-dataset%2F21392%2F7 "2022-08-09T11:05:00Z")
So I converted dataset into JSONL format.
Preloaded data shown in the initial modal looked promising (lists detected):
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**Author:**  [@inouts](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Fu%2Finouts)%5C
**Post date:** [August 9, 2022, 11:06am UTC](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Ft%2Fautotrain-unable-to-upload-the-dataset%2F21392%2F8 "2022-08-09T11:06:05Z")
but unfortunately the original error is still there:
_(sorry for the second message in a row but I was unable to upload the second screenshot)_