Info · IFC Schema

How to fix Invalid IFC version
in IFC files

Export to a current IFC schema (IFC4 / IFC4.3) unless the recipient explicitly requires IFC2x3.

Check your IFC file — free No account · No upload · Runs in your browser · 38 validation checks

What it means

The Invalid IFC version check

File uses an outdated or unrecognised IFC schema

Concrete, tool-specific steps. The check itself is schema-agnostic and works for IFC2x3, IFC4, IFC4x1 and IFC4x3.

Authoring tool	How to fix
Revit	In the IFC export dialog, set File Version to IFC4 (e.g. Reference View or Design Transfer View) instead of IFC2x3.
ArchiCAD	In the IFC Translator, choose an IFC4-based export preset instead of IFC2x3.
Tekla	In the IFC export, select the IFC4 export type rather than IFC2x3.
Allplan	Select IFC4 (or IFC4.3) as the export schema in the IFC interface settings.

How it works

The whole flow runs client-side — your IFC file never leaves your machine.

Open your IFC file

Open IFC Viewer Online and drag & drop your IFC file. It is parsed locally in your browser via WebAssembly — nothing is uploaded.

Run the Health Score validation

Run validation. The "Invalid IFC version" check (RULE_INVALID_IFC_VERSION) flags every affected element and pinpoints it in the model tree.

Fix in Revit

In the IFC export dialog, set File Version to IFC4 (e.g. Reference View or Design Transfer View) instead of IFC2x3.

Fix in ArchiCAD

In the IFC Translator, choose an IFC4-based export preset instead of IFC2x3.

Fix in Tekla

In the IFC export, select the IFC4 export type rather than IFC2x3.

Fix in Allplan

Select IFC4 (or IFC4.3) as the export schema in the IFC interface settings.

Re-validate

Re-export from your authoring tool and re-run validation to confirm the issue is resolved and your Health Score improved.

Related checks

Invalid IFC version is 1 of 38 checks. Run the full IFC Health Score to see every issue and a single 0–100 number — free, no account, no upload.