dart:ui:1: Error: Not found: dart:ui. flutter/dart:

Question

When I start a debugging session (pressing F5) I receive the following messages:

dart:ui:1: Error: Not found: dart:ui.
Exited (sigterm)

The

Answer 1

If you are running flutter project.

In edit configuration, run it as flutter project,which has a flutter icon besides it.

If you are testing a dart file

Check your denpendency tree. Delete all flutter related lib like widgets/material/cupertino.

Simple explaination

In short, you are running a file as dart file, but you have imported flutter dependencies like widgets/material at the same time. Either run it as flutter ,or get rid of flutter dependency and run pure dart.