[BUG] Claude Code unable to connect to PyCharm by using the dedicated Plugin or via PyCharm's terminals

Found 3 possible duplicate issues:

1. https://github.com/anthropics/claude-code/issues/11180
2. https://github.com/anthropics/claude-code/issues/8660
3. https://github.com/anthropics/claude-code/issues/11311

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🤖 Generated with Claude Code

Found 3 possible duplicate issues: 1. [[BUG] Rider: No visual diff previews in editor - SSE connection not established #11180](https://github.com/anthropics/claude-code/issues/11180) 2. [[BUG] Edit preview/diff not showing in VSCode extension UI when confirming changes #8660](https://github.com/anthropics/claude-code/issues/8660) 3. [[Question] Edit tool: Diff view only opens for single-line edits, not multi-line - is this by design? #11311](https://github.com/anthropics/claude-code/issues/11311) This issue will be automatically closed as a duplicate in 3 days. If your issue is a duplicate, please close it and 👍 the existing issue instead To prevent auto-closure, add a comment or 👎 this comment 🤖 Generated with Claude Code

The three cases mentioned represent different contexts.

I can confirm this issue on IntelliJ IDEA.

I noticed that diff view only opens for single-line edits, similar pattern to #11311 (though that's VSCode Extension specific). Multi-line edits bypass the diff preview entirely.

❕ New element

Invalidating the IDE cache may temporarily resolve the issue. But as the issue still reappears randomly.

❕ New element

After prolonged use of the plug-in, I can confirm that the problem occurs relatively more frequently when Claude Code is first launched.

Closing Claude Code from the PyCharm terminal and restarting it often allows Claude Code and the IDE to be connected properly. A red “IDE disconnected” message appears temporarily before disappearing. The /status command can then be used to confirm that the two platforms are properly associated.

But in my opinion, it's a problem that should still be fixed.

This starting happening to me a couple of days ago. I am pretty sure after I "re-installed" Claude using their native installer. I don't know if it is related, but hadn't happened before!

This is giving me headache! LOL. Now, I´ve managed to work around this (although I don´t like it). I stopped using the terminal within the PyCharm environment, which is better of course to use it, and started using the terminal (PowerShell) from the Windows Terminal App. I use the same powershell in the integrated pycharm terminal. So I ran /ide and it said something related to the mount path of the project not being the same. So i went and disabled project folder mapping to /mnt/.... on the Claude Code Plugin, and now was able to see Pycharm when running /ide but only on the external terminal. Not within pycharm. So for now I'll work like this, although I prefer to work within the PyCharm environment. if anyone knows how to solve this in PyCharm, we are all ears!

Re-contextualization of the problem (since I'm having it again):

• Claude Code does not connect to the IDE via a connection from PyCharm's built-in terminals (GitBash, PowerShell, CMD).
• Changing the launch command does not improve the situation either.

As @armando-herastang mentioned, it seems that there is a problem with integration in terminals and automatic mapping (which systematically favors a WSL format).

Armando's workaround is not convenient, but still works:

So I ran /ide and it said something related to the mount path of the project not being the same. So i went and disabled project folder mapping to /mnt/.... on the Claude Code Plugin, and now was able to see Pycharm when running /ide but only on the external terminal. Not within pycharm.

I'm keeping the issue open and will send an email to try to get an appropriate response to this problem.

Today, on Claude Code v.2.1.63, I was able to connect Claude Code within the PyCharm terminal to the IDE. It started working all of a sudden. I didn’t see anything related in the latest Claude Code release notes (since I’ve been using Windows Terminal for a while, I can’t pinpoint which version it started working again). Also, nothing changed in the Claude Code plugin for PyCharm or in PyCharm itself (at least nothing that I could notice).

Funnily enough, I can’t connect from Windows Terminal now! 🙃

EDIT: I does work sometimes on Windows Terminal, don´t know about the conditions

While the issue seems to be fixed, I do not know if I should close the issue right now without confirmation from Anthropic Staff.

if you go into your terminal settings in pycharm then go to environment variables and add in the claude path it will work

I struggled with this issue after native installing of claude
Adding this to bashrc on fedora fixed the issue for me

export no_proxy="localhost,127.0.0.1,::1"
export NO_PROXY="localhost,127.0.0.1,::1"

NO_PROXY="localhost,127.0.0.1,::1"

Thank you, this actually fixed it.
If you set up proxy in ~/.claude/settings.json, than add it there.

"env": {
  	"HTTP_PROXY": "http://proxy",
  	"NO_PROXY": "localhost,127.0.0.1,::1"
  }

Closing for now — inactive for too long. Please open a new issue if this is still relevant.

This issue has been automatically locked since it was closed and has not had any activity for 7 days. If you're experiencing a similar issue, please file a new issue and reference this one if it's relevant.