[xmlsec] Error Win32

[hans altaner]

Hello, I have the following error 
I not to be written correctly in English, I am Spanish


E:\Proyectos\Temp\XMlSIGN\xmlsec-0.0.13\win32\binaries>xmlsec
sign  --privkey:si
gned c:\key.pem c:\xml.xml >c:\xml.signed
 (..\src\keys.c:518): error 17: key not found :
 (..\src\xmldsig.c:1437): error 17: key not found :
 (..\src\xmldsig.c:1175): error 2: xmlsec operation
failed : xmlSecSignedInfoRea
d - -1
 (..\src\xmldsig.c:796): error 2: xmlsec operation
failed : xmlSecSignatureRead
- -1
Error: xmlSecDSigGenerate() failed
Error: operation failed

that it can be what this happening 
Greetings
Hag

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