title	BCP055
description	Cannot access properties of type <type-name>. A <type-name> type is required.
ms.topic	reference
ms.custom	devx-track-bicep
ms.date	10/30/2025

Bicep diagnostic code - BCP055

This diagnostic occurs when you reference a nonexistent property of a type.

Description

Cannot access properties of type <type-name>. A <type-name> type is required.

Error

The following example raises the diagnostic because string.bar isn't defined:

type foo = string.bar

You can fix the diagnostic by removing the reference:

type foo = string

For more information about Bicep diagnostics, see Bicep core diagnostics.