Error Conversion Api - Unable to Cast Object

GroupDocs.Conversion Cloud Product Family
1

Hi.
Since today, we’re encountering errors when attempting to convert TSV (csv) to XLSX using the API. Nothing has changed on our end, and we’re unsure what’s causing the issue.

Here’s an example of the error we’re seeing:
{
code: “internalError”,
dateTime: “2025-04-22T12:40:58.8524554Z”,
description: “Operation Failed. Internal error.”,
innerError: null,
message: “Internal error: Unable to cast object of type ‘\u0006\u0016\u000f’ to type ‘\u000e\u0015\u000f’.”
}

Any ideas on what could be going wrong?
Thanks,
Andi

2

Hi, I think this is because GroupDocs.Conversion Cloud was updated to v25.4 yesterday. Will check end respond soon

3

@andreas.hoeglinger
We have opened the following new ticket(s) in our internal issue tracking system and will deliver their fixes according to the terms mentioned in Free Support Policies.

Issue ID(s): CONVERSIONCLOUD-609
4

Hi, this will be fixed in next version v24.5

5

when do you think this update will happen? or will we get informed?

6

We try to release it ASAP, probably within 1-2 weeks. Once it released, a message it this topic should appear

7

ok, that means we have to change to another software, we cant wait so long.
thanks for your help anyway.

8

Hi @andreas.hoeglinger,
We completely understand your situation and the urgency on your side.
Just to let you know, we’re prioritizing this fix, and if there’s any way we can speed up the release or offer a temporary workaround, we’ll inform you here immediately.
Thank you for your understanding, and we hope to have you back once the update is available.