docs(memory): add WSL2 troubleshooting for npx stdout JSON parse errors#3804
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ssam18 wants to merge 2 commits into
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docs(memory): add WSL2 troubleshooting for npx stdout JSON parse errors#3804ssam18 wants to merge 2 commits into
ssam18 wants to merge 2 commits into
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…e errors Explains why `npx -y @modelcontextprotocol/server-memory` causes "Unexpected non-whitespace character after JSON at position 127" errors in WSL2, and provides two workarounds: global npm install and direct node invocation. Fixes modelcontextprotocol#3013.
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We aren't accepting unsolicited out-of-scope guides/docs. This doesn't seem like a problem specific to this server but to WSL and stdio servers in general. |
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LuuOW
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Jun 13, 2026
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Technical audit: Verified MCP server implementation for consistency with current SDK patterns.
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Running the memory server via
npxin WSL2 causes JSON parse errors at a fixed byte offset because npx writes package resolution output to stdout, which corrupts the MCP stdio JSON-RPC stream. Added a troubleshooting section with two workarounds:nodeinvocationSo users can get unblocked without needing to dig through issues..