Hey there! I totally get it—hitting errors when trying to fire up the Superset frontend dev server with npm run dev-server is no fun at all. To help you nail down what's going wrong, could you share a bit more context? Here's what would be super helpful:

• The full error message/logs you're seeing in the terminal. Even the seemingly "minor" lines can give critical clues about what's breaking—like missing dependencies, version mismatches, or config conflicts.
• Your current versions of node and npm (run node -v and npm -v in your terminal to get these). Superset has specific version requirements for frontend tooling, so mismatches here are a super common culprit.
• Whether you've successfully run npm install in the superset-frontend directory before trying the dev server. Incomplete or failed dependency installs often lead to weird runtime errors.
• If you've made any custom changes to frontend config files (like webpack.config.js, .env, or package.json) recently—those tweaks might be causing unexpected issues.

Once you share these details, I can walk you through targeted fixes to get your dev server up and running!

内容的提问来源于stack exchange，提问作者Gorakhnath nigam