topic Re: Unable to upload datasets on Talend Data Prep in Talend Studio

Unable to upload datasets on Talend Data Prep

AbdullahMastan — Thu, 14 Aug 2025 05:58:18 GMT

Greetings,

I am unable to upload any of my datasets to Talend Data Prep (localhost:9999).

I tried upload a csv and an excel, unfortunately both failed with the following popup.

The data I'm uploading:

NOTE: I uploaded this just for trial since it wasn't working with excel.

@Denis_Segard Please provide your valueable assistance.

Re: Unable to upload datasets on Talend Data Prep

Denis_Segard — Thu, 14 Aug 2025 06:24:19 GMT

Hello,

A HAR trace may help to understand what is the problem :

https://community.qlik.com/t5/Official-Support-Articles/How-to-generate-a-HAR-trace-for-issues-with-Talend-Cloud/ta-p/2151056

Kind regards
Denis

Re: Unable to upload datasets on Talend Data Prep

AbdullahMastan — Thu, 14 Aug 2025 08:48:49 GMT

How do I interpret the HAR? I am unable to deduce anything out of it.

Below is something I got from the console of Inspect.

angular.js:15739 Possibly unhandled rejection: {"data":{"code":"TDP_API_UNABLE_TO_CREATE_DATASET",

"defaultMessage":"An error has occurred during the import.","message":"An error has occurred during the import.",

"messageTitle":"Import error","context":{},"stacktraceDisplayed":true},"status":400,

"config":{"method":"POST","transformResponse":[null],"jsonpCallbackParam":"callback",

"url":"/gateway/upload/api/datasets?name=custs&size=10",

"headers":{"Content-Type":"text/plain","Accept":"application/json, text/plain, */*","Accept-Language":"en-US","X-Sharing-Provider":"legacy","X-Dataset-Provider":"legacy"},"data":{},"withCredentials":true},"statusText":"","xhrStatus":"complete"}

Re: Unable to upload datasets on Talend Data Prep

Denis_Segard — Thu, 14 Aug 2025 08:47:37 GMT

Hello,

Could you upload the HAR trace file ?
Kind regards
Denis

Re: Unable to upload datasets on Talend Data Prep

AbdullahMastan — Thu, 14 Aug 2025 08:51:17 GMT

Please find the attached

Re: Unable to upload datasets on Talend Data Prep

Denis_Segard — Thu, 14 Aug 2025 08:58:41 GMT

Hello,
In the HAR trace , we can see the HTTP request used to upload the file fails with an HTTP 400 :

Did you check in the Data Prep log files if there are some errors ?

Kind regards
Denis

Re: Unable to upload datasets on Talend Data Prep

AbdullahMastan — Thu, 14 Aug 2025 09:05:23 GMT

I checked, yet again, I am unable to interpret anything.

I have attached the log for your reference.

Re: Unable to upload datasets on Talend Data Prep

AbdullahMastan — Wed, 20 Aug 2025 04:11:43 GMT

Hey @Denis_Segard, any comments. Haven't been able to resolve it yet.