error: Target of URI doesn't exist: 'package:test/test.dart'

Question

Since the latest flutter update my tests are broken. It looks like the Dart test framework isn't available anymore:

error: Target of URI doesn't exist: 'package:test/test.dart'. 

Answer 1

If you've upgraded to a recent master, you'll find that flutter_test has removed its dependency on package:test . The package hasn't been removed or renamed, but you will need to specifically add it to you dev_dependencies in your pubspec now:

dev_dependencies:
  test: ^1.5.1

The test_api package is just used to unify the versioning and reduce the depencies of flutter_test . It didn't replace package:test . There are also no breaking changes in any of these newer test versions.

Answer 2

The problem for me targeted URI doesn't exist was due to lib folder inside test package was not available at file:///E:/APPS/flutter/flutter/.pub-cache/hosted/pub.dartlang.org/dartz-0.9.2/lib/ so I downloaded it from GitHub and add it there manually and restarted the IDE. And It worked.