Hi, I’m trying to connect Figma mcp to Antigravity. While trying to install Figma Dev Mode MCP in Antigravity gui (Manage MCP Servers tab) I get this error:
Error: [77271] Using automatically selected callback port: 14118 [77271] Discovering OAuth server configuration... [77271] [77271] Connecting to remote server: http://127.0.0.1:3845/sse [77271] Using transport strategy: http-first [77271] Connection error: TypeError: fetch failed at node:internal/deps/undici/undici:13502:13 at process.processTicksAndRejections (node:internal/process/task_queues:105:5) at async StreamableHTTPClientTransport.send (file:///home/user/.npm/_npx/705d23756ff7dacc/node_modules/mcp-remote/dist/chunk-F76MHFRJ.js:18464:24) { [cause]: Error: connect ECONNREFUSED 127.0.0.1:3845 at TCPConnectWrap.afterConnect [as oncomplete] (node:net:1634:16) { errno: -111, code: 'ECONNREFUSED', syscall: 'connect', address: '127.0.0.1', port: 3845 } } [77271] Fatal error: TypeError: fetch failed at node:internal/deps/undici/undici:13502:13 at process.processTicksAndRejections (node:internal/process/task_queues:105:5) at async StreamableHTTPClientTransport.send (file:///home/user/.npm/_npx/705d23756ff7dacc/node_modules/mcp-remote/dist/chunk-F76MHFRJ.js:18464:24) { [cause]: Error: connect ECONNREFUSED 127.0.0.1:3845 at TCPConnectWrap.afterConnect [as oncomplete] (node:net:1634:16) { errno: -111, code: 'ECONNREFUSED', syscall: 'connect', address: '127.0.0.1', port: 3845 } } : calling "initialize": EOF.
OS: Ubuntu 25.10
Antigravity Version: 1.14.2
VSCode OSS Version: 1.104.0
Commit: 450b6b28083d737992adc5d19637f22c95ffba7b
Date: 2026-01-13T02:07:24.766Z (1 wk ago)
Electron: 37.3.1
Chromium: 138.0.7204.235
Node.js: 22.18.0
V8: 13.8.258.31-electron.0
OS: Linux x64 6.17.0-8-generic
Language Server CL: 855455936