claude-code - 💡(How to fix) Fix [BUG] API error when screenshots are attached to existing or even new session on claude code [1 comments, 2 participants]

Official PRs (…)
ON THIS PAGE

Recommended Tools

×6

Utilities matched from this issue’s tags and category — try them while you read without losing context.

GitHub issue graph ai analysis

Paste a GitHub issue URL. We fetch that issue, discover linked issues from bodies/comments/timeline, collect linked pull requests, and produce a structured English report.

The report is written in English Markdown for sharing and archival.

Helpful · Quick feedback

Loading…
GitHub stats
anthropics/claude-code#47834Fetched 2026-04-15 06:41:00
View on GitHub
Comments
1
Participants
2
Timeline
5
Reactions
0
Author
Timeline (top)
labeled ×4commented ×1

Error Message

API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":"req_011Ca22HeiECk7wNBGKp7dW4"}

Code Example

API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":"req_011Ca22HeiECk7wNBGKp7dW4"}
RAW_BUFFERClick to expand / collapse

Preflight Checklist

  • I have searched existing issues and this hasn't been reported yet
  • This is a single bug report (please file separate reports for different bugs)
  • I am using the latest version of Claude Code

What's Wrong?

at times when i attach screenshot to session it throws api errror, even when with new chat sessions, This has occurred many times in my coding journey with claude code.

What Should Happen?

when screenshot is attached no errors should be displayed

Error Messages/Logs

API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":"req_011Ca22HeiECk7wNBGKp7dW4"}

Steps to Reproduce

when a screenshot is attached it sends api error in response API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":"req_011Ca22HeiECk7wNBGKp7dW4"}

Claude Model

Opus

Is this a regression?

I don't know

Last Working Version

No response

Claude Code Version

Claude 1.2278.0 (e5213f) 2026-04-13T17:49:21.000Z

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Other

Additional Information

<img width="1256" height="318" alt="Image" src="https://github.com/user-attachments/assets/b2859c44-242c-41e7-9e21-b76d80fea7ec" />

extent analysis

TL;DR

The issue can be mitigated by checking the screenshot file size and format before attaching it to the session, as the API error 500 may indicate an internal server error due to invalid or large file uploads.

Guidance

  • Verify that the screenshot file size is within the allowed limits of the Anthropic API, as large files may cause internal server errors.
  • Check the file format of the screenshot to ensure it is supported by the API, as unsupported formats may lead to errors.
  • Test attaching screenshots of different sizes and formats to isolate the cause of the issue.
  • Review the API documentation for any specific requirements or restrictions on file uploads.

Example

No code snippet is provided as the issue is related to API interactions and file uploads, and no specific code is mentioned in the issue description.

Notes

The root cause of the issue is uncertain, and further investigation is needed to determine the exact cause of the API error 500. The provided error message does not offer specific details about the error.

Recommendation

Apply workaround: Check and validate the screenshot file size and format before attaching it to the session, as this may help mitigate the API error 500.

Vote matrix · Quick signals

Works
Did the solution work? Tap to confirm.
Easy Fix
Was it a quick fix?
Time Saver
Did it save you time?
Blocking
Was it severely blocking?
Common Issue
Are others likely hitting this too?
Flaky / Intermittent
Is it intermittent?
Verified / Reproducible
Can you reproduce it reliably?
Loading…

Still need to ship something?

×6

Another batch ranked right after the header list — different links, same matching logic.

Back to top recommendations

TRENDING