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claude-code - 💡(How to fix) Fix [BUG] エラーコード 1034YMZ [1 participants]

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anthropics/claude-code#44998•Fetched 2026-04-09 08:15:46
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Error Message

Error Messages/Logs

Code Example

1034YMZ
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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?

アプリを再インストールしてもアプリ版Claudeが起動しない

<img width="754" height="532" alt="Image" src="https://github.com/user-attachments/assets/925a4d19-958d-4382-b81e-5f21bfe0afd7" />

What Should Happen?

問題無くログインできるようにしたい。

Error Messages/Logs

1034YMZ

Steps to Reproduce

Claudeデスクトップアプリがうまく起動できない。 エラーコードは上記の通り

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

No response

Claude Code Version

claude 2.1.94 (Claude Code)

Platform

Anthropic API

Operating System

WindowsOS

Terminal/Shell

Additional Information

No response

extent analysis

TL;DR

The issue might be resolved by checking the compatibility of the current Claude Code version with the WindowsOS platform and the Anthropic API.

Guidance

  • Verify that the Anthropic API is properly configured and accessible from the WindowsOS platform.
  • Check the release notes of Claude Code version 2.1.94 for any known issues related to the WindowsOS platform or Anthropic API.
  • Attempt to run the Claude desktop application with elevated privileges or in compatibility mode to see if it resolves the issue.
  • If possible, try to obtain more detailed error logs or messages to help diagnose the problem.

Notes

The provided error code "1034YMZ" is not explicitly explained in the issue, and without more information about the Last Working Version, it's challenging to pinpoint the exact cause of the regression.

Recommendation

Apply workaround: Since the issue is reported as a regression and the Last Working Version is not specified, it might be more practical to try workarounds such as checking API and platform compatibility rather than immediately attempting an upgrade, which could introduce further compatibility issues.

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#api#inference speed#output truncation#response parsing#generation error

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