Cannot find package "test" after installing @effect/vitest

I just installed @effect/vitest but get

error: Cannot find package "test" from ".../node_modules/@effect/vitest/dist/esm/index.js"

error: Cannot find package "test" from ".../node_modules/@effect/vitest/dist/esm/index.js"

Do I need to do anything else to get it working?

Cannot find package "test" after installing @effect/vitest - Effect Community