flutter-errors

This skill acts as a specialized diagnostic tool for Flutter developers, focusing on frequently encountered runtime exceptions and layout violations that hinder application development. It provides targeted, actionable guidance to resolve common framework issues without requiring extensive documentation lookups. The tool is designed for developers who are building user interfaces and encounter crashes or rendering anomalies during the development cycle.

• Resolves RenderFlex overflow errors by providing strategies to wrap UI elements in Flexible or Expanded widgets.

• Identifies causes of unbounded height or width exceptions in ListView, Column, and TextField components.

• Explains the correct usage of lifecycle methods to prevent setState-during-build and markNeedsBuild errors.

• Provides solutions for scroll controller management when multiple scrollable widgets are present in a single view.

• Suggests debugging techniques including the use of Flutter Inspector, debugPaintSizeEnabled, and layout guidelines.

• The skill is intended to be activated when the IDE detects errors related to the Flutter rendering pipeline or widget tree constraints.

• Users should provide the error stack trace or specific error message (e.g., RenderBox was not laid out) to trigger the most accurate response.

• Inputs typically include snippet context from a build method or widget tree; outputs consist of code-level fixes and structural recommendations.

• It emphasizes non-opinionated, official Flutter documentation patterns rather than third-party architectural approaches.

• Best practices include verifying constraint propagation through the widget tree and ensuring proper lifecycle management via addPostFrameCallback.