I successfully applied Gemini’s fix on Debian 12 and it works perfectly.
For those using Linux/Debian, the file paths and the method to patch the extension.js file are slightly different. Here is how to do it via terminal:
1. Locate the extension folder The extensions for Antigravity/Cursor are usually located in your home directory. Open your terminal and find the exact folder name: ls ~/.antigravity/extensions/ | grep platformio
2. Apply the Patch (Quick Fix via sed) Navigate to the dist folder of the extension (replace the folder name with yours) and run this command to replace the hardcoded ID:
cd ~/.antigravity/extensions/davidgomes.platformio-ide-cursor-0.0.1-universal/dist/
# Backup the original file
cp extension.js extension.js.bak
# Patch the extension ID
sed -i 's/platformio.platformio-ide/davidgomes.platformio-ide-cursor/g' extension.js
3. Ensure Python dependencies are present On Debian 12, make sure you have the necessary Python tools for PlatformIO to build its environment: sudo apt update && sudo apt install python3-venv python3-pip
4. Restart Restart Antigravity. The extension should now activate and begin the PIO Core installation.