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ifcos-errors-schema

Diagnose IFC schema errors across IFC2X3, IFC4, and IFC4X3 versions.

30|4|Updated Mar 5, 2026
Search Tags:#ifc#bim#ifcopenshell#schema errors#ifcpatch#ifc migration
One-click install
npx skills add https://github.com/OpenAEC-Foundation/Blender-Bonsai-ifcOpenshell-Sverchok-Claude-Skill-Package --skill ifcos-errors-schema
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: ifcos-errors-schema
Source: https://github.com/OpenAEC-Foundation/Blender-Bonsai-ifcOpenshell-Sverchok-Claude-Skill-Package/tree/main/skills/ifcopenshell/errors/ifcos-errors-schema
Command: npx skills add https://github.com/OpenAEC-Foundation/Blender-Bonsai-ifcOpenshell-Sverchok-Claude-Skill-Package --skill ifcos-errors-schema

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill provides comprehensive guidance and solutions for common errors encountered when working with different IFC schema versions (IFC2X3, IFC4, IFC4X3) using IfcOpenShell, ensuring data integrity and compatibility.

Core Features & Use Cases

  • Schema Version Diagnosis: Understand and resolve errors related to entity availability, attribute changes, and schema mismatches across IFC versions.
  • Migration Guidance: Learn how to use ifcpatch for reliable schema migration and validation.
  • Version-Safe Coding: Implement best practices and patterns for writing code that works across multiple IFC schemas.
  • Use Case: When encountering a RuntimeError: entity "XYZ" not found while processing an IFC file, consult this Skill's decision tree to quickly identify if it's a schema version issue and apply the correct entity name or migration strategy.

Quick Start

Use the ifcos-errors-schema skill to diagnose why an IfcWallStandardCase entity is not found in an IFC4X3 file.

Frequently Asked Questions about ifcos-errors-schema

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
Why does IfcOpenShell throw an entity not found error when reading IFC4X3 files?▼

IfcOpenShell entity not found errors typically stem from schema version differences where entities are renamed or removed. This Skill diagnoses these SchemaError scenarios across IFC2X3, IFC4, and IFC4X3 versions to pinpoint the exact cause.

How do I migrate an IFC file from IFC2X3 to IFC4 using ifcpatch?▼

You can migrate IFC files between schema versions using the ifcpatch utility in IfcOpenShell. This Skill provides migration guidance covering entity availability differences and attribute type changes for reliable IFC2X3 to IFC4 transitions.

What are the common schema errors when upgrading IFC versions?▼

Common IFC schema errors involve entity availability differences, attribute type changes, and removed or added entities. This Skill documents these specific pitfalls across IFC2X3, IFC4, and IFC4X3 to ensure data integrity during upgrades.

Can I write version-safe code that works across multiple IFC schemas in IfcOpenShell?▼

Yes, you can implement version-safe coding by following best practices for handling multiple IFC schemas. This Skill provides patterns to manage entity availability differences and attribute changes, ensuring your IfcOpenShell code works across IFC2X3, IFC4, and IFC4X3.

How do I resolve a RuntimeError when an IfcWallStandardCase entity is not found in IFC4X3?▼

IfcWallStandardCase may not be found in IFC4X3 due to schema changes or entity removal. Use this Skill's diagnostic decision tree to quickly identify the schema version issue and apply the correct entity name or migration strategy.

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