DTK0050: Integration Install Failed

Message

Failed to install {packages}.

Cause

Vite DevTools ships as a dependency-light shell: the built-in integrations (Rolldown, Vite, Vitest, Oxc) are advertised as discovery launchers in the dock rail, and their packages are installed on demand the first time you click Install on a launcher. This diagnostic is thrown when that install — run via nypm against the project's detected package manager — fails, for example due to network restrictions, a read-only file system, or a package manager error.

Example

Clicking Install Rolldown DevTools in the dock while offline, so the package manager cannot reach the registry.

Fix

Install the package(s) manually with your package manager, then restart the dev server so DevTools picks them up:

pnpm add -D @vitejs/devtools-rolldown
# or: npm i -D @vitejs/devtools-rolldown
# or: yarn add -D @vitejs/devtools-rolldown

Source

• packages/kit/src/node/create-install-launcher.ts — the launcher's onLaunch throws this when addDependency(...) rejects.