Error Reference

Usage: create-experiment <project-name>

The project argument is missing.

npx create-experiment my-experiment

Failed to load experiment.config.js

Run the command from the generated project root and check that experiment.config.js exports a default object with globalObject.

No variation entry points found

The build expects src/js/vN/index.jsx. Restore v1/index.jsx or run from the correct directory.

-eN is out of range

The zero-based watch index is larger than the number of discovered variation folders. For v2, use:

pnpm start 1

Build aborted - fix lint errors before bundling

Production builds run biome check src. Run:

pnpm format
pnpm lint

Fix remaining errors, including unused variables and console calls.

Adobe Target unsafe placeholder syntax found

The emitted JavaScript still contains ${, which Adobe Target can treat as placeholder syntax. Avoid constructing literal placeholders with template literals or escaped string fragments. Keep approved Target placeholders as plain quoted strings and rebuild.

IIFE bundle not found

Playwright loads dist/v1/v1.js. Run E2E through:

pnpm test:e2e

That command builds before starting Playwright.

injectTargetElement: unsupported selector

Generated E2E helpers can create only a simple class target such as .target-selector. If selectors.primary is complex, ensure the real page contains it or customize injectTargetElement() for the selector shape.

Unknown market

e2e/config.js#getUrl() could not find the requested country code in urlsConfig.markets. Use a configured country code, not only the parent group code.

No target matched selectors

Live injection tried selectors.primary and every fallback without finding an element. Verify the target URL, page state, and selector chain.

AGENTS.md already exists.

pnpm init-agents found an existing AGENTS.md and left it unchanged. To intentionally replace the file, run:

pnpm init-agents -- --force

CLAUDE.md already exists.

pnpm init-claude found an existing CLAUDE.md and left it unchanged. To intentionally replace the file, run:

pnpm init-claude -- --force

Chromium executable is missing

Install the browser used by live injection and E2E:

pnpm dlx playwright install chromium

Clipboard does not update

macOS and Windows use built-in clipboard commands. Linux requires xclip. The watcher still builds if clipboard copy fails, so copy dist/vN/vN.js manually or install xclip.