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claude-code - 💡(How to fix) Fix [BUG] messages.170.content.1.text: cache_control cannot be set for empty text blocks

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Error Message

API Error API Error: 400 messages.170.content.1.text: cache_control cannot be set for empty text blocks Vad ska jag välja här

API Error API Error: 400 messages: text content blocks must be non-empty vilken ska jag välja i dropmenyn?

API Error API Error: 400 messages: text content blocks must be non-empty

Code Example

API Error
API Error: 400 messages.170.content.1.text: cache_control cannot be set for empty text blocks
Vad ska jag välja här

API Error
API Error: 400 messages: text content blocks must be non-empty
vilken ska jag välja i dropmenyn?

API Error
API Error: 400 messages: text content blocks must be non-empty
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?

I keep get error messages and cant keep use sessions.

What Should Happen?

Should be able to just attach screenshot without text.

Error Messages/Logs

API Error
API Error: 400 messages.170.content.1.text: cache_control cannot be set for empty text blocks
Vad ska jag välja här

API Error
API Error: 400 messages: text content blocks must be non-empty
vilken ska jag välja i dropmenyn?

API Error
API Error: 400 messages: text content blocks must be non-empty

Steps to Reproduce

  1. attach screenshot without text

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

dont know

Claude Code Version

2.1.146 (Claude Code)

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

VS Code integrated terminal

Additional Information

<img width="1380" height="712" alt="Image" src="https://github.com/user-attachments/assets/8b2749a8-0d6a-4433-bb18-4eaa80acce75" />

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claude-code - 💡(How to fix) Fix [BUG] messages.170.content.1.text: cache_control cannot be set for empty text blocks