# Interpreting PKCS \$111 library error codes for AWS CloudHSM Client SDK 3
<a name="pkcs11-v3-attr-errors"></a>

Specifying in the template a PKCS \$111 library attribute that is not supported by a specific key results in an error. The following table contains error codes that are generated when you violate specifications:

[\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/cloudhsm/latest/userguide/pkcs11-v3-attr-errors.html)