Hey there! I’ve run into this exact proxy-related error with GitHub Desktop plenty of times, so let’s go through all the non-command-line fixes you can try right away—no terminal required.

1. 检查GitHub Desktop内置的代理设置 #

First up, let’s make sure the app itself is using the right proxy config:

• Open GitHub Desktop, then click File (Windows) or GitHub Desktop (Mac) in the top menu bar, and select Options (Windows) or Preferences (Mac).
• Switch to the Network tab.
  • If your network requires a proxy, ensure Use system proxy settings is checked—this lets the app pull your system’s existing proxy setup automatically.
  • If you don’t need a proxy (or the system config is glitchy), toggle on No proxy, then restart GitHub Desktop and test your fetch/push again.

2. 验证系统级代理配置 #

Often, the issue stems from incorrect system proxy settings. Let’s double-check those:

For Windows: #

• Open Settings → Network & Internet → Proxy.
• Verify if "Automatically detect settings" is enabled, or if your manual proxy address/port is correct. If you need authenticated proxy, make sure you’ve saved the right username and password (click "Edit" under manual proxy to update credentials).
• After making changes, restart GitHub Desktop to apply the new settings.

For Mac: #

• Open System Preferences → Network, select your active network (Wi-Fi/Ethernet), then click Advanced.
• Go to the Proxies tab. Check that any enabled proxies (like HTTP/HTTPS) have the correct address, port, and login credentials. If you don’t need a proxy, uncheck all proxy options here.
• Restart GitHub Desktop once you’ve adjusted settings.

3. Clear GitHub Desktop’s cache #

Stale cached proxy data can cause unexpected issues. Here’s how to clear it without commands:

• In GitHub Desktop, click the Help menu, then select Show Logs in Explorer (Windows) or Show Logs in Finder (Mac)—this opens the app’s log folder.
• Close GitHub Desktop completely, then delete all files and folders inside the log directory (this won’t touch your code repositories, so it’s safe).
• Reopen GitHub Desktop and try your fetch/push operation again.

4. Double-check your repository’s remote URL #

While the error points to proxy, sometimes a typo in the remote URL can trigger weird behavior:

• Open your repository in GitHub Desktop, click the Repository menu at the top, then select Repository settings.
• Verify the Remote repository URL is exactly https://github.com/ABCD.git. If there’s a typo, correct it and save, then test again.

If none of these fix the issue, you might want to reach out to your network administrator—they can confirm if the proxy allows access to GitHub’s domains, or if there are any new proxy policies you need to follow.

内容的提问来源于stack exchange，提问作者Sachin Tripathi