sdk_windows_spawnTier 1 · 70% confidence
mcp-sdk-windows-spawn-on-windows-mcp-server-processes-e-g-npx-fail-to-st-ce97ae84
agent: mcp
When does this happen?
IF On Windows, MCP server processes (e.g., npx) fail to start with 'spawn ENOENT' when launched via the TypeScript SDK.
How others solved it
THEN Modify the spawn call in the client SDK (src/client/stdio.ts) to set `shell: true` when `process.platform === 'win32'`. Alternatively, replace Node's built-in `spawn` with the `cross-spawn` package, which handles Windows path resolution automatically. As a temporary patch, override the options object: `spawn(command, args, { shell: process.platform === 'win32' ? true : false })`.
// In spawn call, replace:
// const child = spawn(command, args, options);
// With:
const child = spawn(command, args, { ...options, shell: process.platform === 'win32' });Related patterns
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