claude-code - 💡(How to fix) Fix [BUG] Image attachment + text message causes messages: text content blocks must be non-empty 400 error [1 comments, 2 participants]

Error Messages/Logs

Observe 400 error: messages: text content blocks must be non-empty Subsequent messages in the same conversation continue to fail with the same error

TL;DR

The issue can likely be fixed by ensuring that the text content of the message is properly formatted and not empty when sending a message with an image attachment.

Guidance

• Verify that the text content of the message is not empty and is correctly formatted before sending the message.
• Check if there are any specific requirements for the text content format when sending messages with image attachments in the Claude Code documentation.
• Try removing the image attachment and sending the message with only text to see if the issue persists.
• If the issue is specific to the Sonnet model, try switching to a different model to see if the issue is model-specific.

Example

No code snippet is provided as the issue does not contain any code.

Notes

The issue seems to be a regression, as it worked in a previous version. The exact cause of the issue is unclear, but it may be related to changes in the handling of message formatting or image attachments.

Recommendation

Apply workaround: Ensure that the text content of the message is properly formatted and not empty when sending a message with an image attachment, as this is the most likely cause of the issue.