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TypeError: Cannot read properties of undefined (reading 'prototype')

Open rpatton4 opened this issue 2 months ago • 0 comments

Running the MCP server with Node >= v24.x results in the following error (this capture is with Node v25.2.0):

❯ node /Users/me/Repositories/Clones/Microsoft/SQL-AI-samples/MssqlMcp/Node/dist/index.js /Users/me/Repositories/Clones/Microsoft/SQL-AI-samples/MssqlMcp/Node/node_modules/buffer-equal-constant-time/index.js:37 var origSlowBufEqual = SlowBuffer.prototype.equal; ^

TypeError: Cannot read properties of undefined (reading 'prototype') at Object. (/Users/me/Repositories/Clones/Microsoft/SQL-AI-samples/MssqlMcp/Node/node_modules/buffer-equal-constant-time/index.js:37:35) at Module._compile (node:internal/modules/cjs/loader:1760:14) at Object..js (node:internal/modules/cjs/loader:1892:10) at Module.load (node:internal/modules/cjs/loader:1480:32) at Module._load (node:internal/modules/cjs/loader:1299:12) at TracingChannel.traceSync (node:diagnostics_channel:328:14) at wrapModuleLoad (node:internal/modules/cjs/loader:245:24) at Module.require (node:internal/modules/cjs/loader:1503:12) at require (node:internal/modules/helpers:152:16) at Object. (/Users/me/Repositories/Clones/Microsoft/SQL-AI-samples/MssqlMcp/Node/node_modules/jsonwebtoken/node_modules/jwa/index.js:1:19)

I do not get this error with Node v23.11.0. See https://github.com/microsoft/vscode-vsce/issues/1139 for reference.

rpatton4 avatar Nov 17 '25 22:11 rpatton4