Bicep error code - BCP294

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This error occurs when you use values of different data types in a union type definition.

Error description

Type unions must be reducible to a single ARM type (such as 'string', 'int', or 'bool').

Examples

The following example raises the error because there are different types used in the union type:

type foo = 'a' | 1

You can fix the error by using a single data type for the union type definition:

type foo = 'a' | 'b'

Next steps

For more information about Bicep error and warning codes, see Bicep core diagnostics.