claude-code - 💡(How to fix) Fix [Bug] Claude fails to consider alternative sync methods despite available tools [1 comments, 2 participants]

[{"error":"Error: LSP server plugin:pyright-lsp:pyright failed to start: Executable not found in $PATH: "pyright-langserver"\n at start (/$bunfs/root/src/entrypoints/cli.js:3202:22360)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-05-03T22:37:13.288Z"},{"error":"Error: Executable not found in $PATH: "pyright-langserver"\n at spawn (unknown)\n at spawn (node:child_process:667:35)\n at spawn (node:child_process:14:39)\n at start (/$bunfs/root/src/entrypoints/cli.js:3202:20896)\n at Y (/$bunfs/root/src/entrypoints/cli.js:3202:24879)\n at z (/$bunfs/root/src/entrypoints/cli.js:3202:30119)\n at j (/$bunfs/root/src/entrypoints/cli.js:3202:30504)\n at J (/$bunfs/root/src/entrypoints/cli.js:3202:31063)\n at call (/$bunfs/root/src/entrypoints/cli.js:4919:1412)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-05-03T22:37:13.288Z"},{"error":"Error: Failed to start LSP server for file /Users/jacob/polymarket-prometheus-bot/prometheus_bot/main.py: Executable not found in $PATH: "pyright-langserver"\n at z (/$bunfs/root/src/entrypoints/cli.js:3202:30145)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-05-03T22:37:13.288Z"},{"error":"Error: Executable not found in $PATH: "pyright-langserver"\n at spawn (unknown)\n at spawn (node:child_process:667:35)\n at spawn (node:child_process:14:39)\n at start (/$bunfs/root/src/entrypoints/cli.js:3202:20896)\n at Y (/$bunfs/root/src/entrypoints/cli.js:3202:24879)\n at z (/$bunfs/root/src/entrypoints/cli.js:3202:30119)\n at j (/$bunfs/root/src/entrypoints/cli.js:3202:30504)\n at J (/$bunfs/root/src/entrypoints/cli.js:3202:31063)\n at call (/$bunfs/root/src/entrypoints/cli.js:4919:1412)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-05-03T22:37:13.288Z"},{"error":"Error: LSP server plugin:pyright-lsp:pyright failed to start: Executable not found in $PATH: "pyright-langserver"\n at start (/$bunfs/root/src/entrypoints/cli.js:3202:22360)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-05-03T22:37:19.233Z"},{"error":"Error: Executable not found in $PATH: "pyright-langserver"\n at spawn (unknown)\n at spawn (node:child_process:667:35)\n at spawn (node:child_process:14:39)\n at start (/$bunfs/root/src/entrypoints/cli.js:3202:20896)\n at Y (/$bunfs/root/src/entrypoints/cli.js:3202:24879)\n at z (/$bunfs/root/src/entrypoints/cli.js:3202:30119)\n at j (/$bunfs/root/src/entrypoints/cli.js:3202:30504)\n at J (/$bunfs/root/src/entrypoints/cli.js:3202:31063)\n at call (/$bunfs/root/src/entrypoints/cli.js:4919:1412)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-05-03T22:37:19.234Z"},{"error":"Error: Failed to start LSP server for file /Users/jacob/polymarket-prometheus-bot/prometheus_bot/main.py: Executable not found in $PATH: "pyright-langserver"\n at z (/$bunfs/root/src/entrypoints/cli.js:3202:30145)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-05-03T22:37:19.234Z"},{"error":"Error: Executable not found in $PATH: "pyright-langserver"\n at spawn (unknown)\n at spawn (node:child_process:667:35)\n at spawn (node:child_process:14:39)\n at start (/$bunfs/root/src/entrypoints/cli.js:3202:20896)\n at Y (/$bunfs/root/src/entrypoints/cli.js:3202:24879)\n at z (/$bunfs/root/src/entrypoints/cli.js:3202:30119)\n at j (/$bunfs/root/src/entrypoints/cli.js:3202:30504)\n at J (/$bunfs/root/src/entrypoints/cli.js:3202:31063)\n at call (/$bunfs/root/src/entrypoints/cli.js:4919:1412)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-05-03T22:37:19.234Z"},{"error":"Error: LSP server plugin:pyright-lsp:pyright failed to start: Executable not found in $PATH: "pyright-langserver"\n at start (/$bunfs/root/src/entrypoints/cli.js:3202:22360)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-05-03T22:38:42.741Z"},{"error":"Error: Executable not found in $PATH: "pyright-langserver"\n at spawn (unknown)\n at spawn (node:child_process:667:35)\n at spawn (node:child_process:14:39)\n at start (/$bunfs/root/src/entrypoints/cli.js:3202:20896)\n at Y (/$bunfs/root/src/entrypoints/cli.js:3202:24879)\n at z (/$bunfs/root/src/entrypoints/cli.js:3202:30119)\n at j (/$bunfs/root/src/entrypoints/cli.js:3202:30…

TL;DR

The most likely fix is to ensure the pyright-langserver executable is installed and available in the system's PATH.

Guidance

1. Verify pyright-langserver installation: Check if pyright-langserver is installed by running pyright-langserver --version in the terminal. If it's not installed, install it using the recommended method for your environment.
2. Check PATH environment variable: Ensure the directory containing pyright-langserver is included in the system's PATH environment variable. This can usually be done by adding the installation directory to the PATH variable in your shell configuration file.
3. Restart the application or service: After installing pyright-langserver and updating the PATH, restart the application or service that was attempting to use it to ensure the changes take effect.

Example

No specific code snippet is applicable here, but an example of how to add a directory to the PATH variable in a bash shell configuration file (~/.bashrc or ~/.zshrc) might look like: export PATH=$PATH:/path/to/pyright-langserver/installation/directory

Notes

The provided error messages consistently indicate that the pyright-langserver executable cannot be found in the system's PATH. This suggests a configuration or installation issue rather than a problem with the code itself. Ensure that any installation or configuration steps are followed carefully to avoid further issues.

Recommendation

Apply the workaround by installing pyright-langserver and ensuring it's in the system's PATH, as this directly addresses the error messages provided.