[xmlsec] Problems signing document instance

[Thomas Jones]

I am utilizing the following command sequence:

buddha at bodhitsattva:~> xmlsec1 --sign --privkey-pem
projects/xsdl/doc/keys.bak/sb_rsa_private.pem
projects/xsdl/osstmm/tests/xsdl_osstmm_lc_test.xml

Which elicits the following errors:

func=xmlSecTransformNodeRead:file=transforms.c:line=1511:obj=unknown:subj=xmlSecTransformIdsListFindByHref:error=1:xmlsec
library function
failed:href=http://www.w3.org/2001/04/xmldsig-more#rsa-sha256
func=xmlSecTransformCtxNodeRead:file=transforms.c:line=666:obj=unknown:subj=xmlSecTransformNodeRead:error=1:xmlsec
library function failed:name=SignatureMethod
func=xmlSecDSigCtxProcessSignedInfoNode:file=xmldsig.c:line=742:obj=unknown:subj=xmlSecTransformCtxNodeRead:error=1:xmlsec
library function failed:node=SignatureMethod
func=xmlSecDSigCtxProcessSignatureNode:file=xmldsig.c:line=547:obj=unknown:subj=xmlSecDSigCtxProcessSignedInfoNode:error=1:xmlsec
library function failed:
func=xmlSecDSigCtxSign:file=xmldsig.c:line=303:obj=unknown:subj=xmlSecDSigCtxSigantureProcessNode:error=1:xmlsec
library function failed:
Error: signature failed
Error: failed to sign file "projects/xsdl/osstmm/tests/xsdl_osstmm_lc_test.xml

The following markup is composed for signing:
<Signature xmlns="http://www.w3.org/2000/09/xmldsig#">
        <SignedInfo>
            <CanonicalizationMethod
Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315"/>
            <SignatureMethod
Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256"/>
            <Reference URI="#test">
                <DigestMethod
Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/>
                <DigestValue></DigestValue>
            </Reference>
        </SignedInfo>
        <SignatureValue></SignatureValue>
        <KeyInfo>
            <KeyName></KeyName>
        </KeyInfo>
    </Signature>

The Reference URI is valid and points to the root node that is parent
to everything in the document. What is the problem?

Thanks.