SAML Module with Mx 7.1

Has anyone been able to run the SAML module with 7.1?  I've downloaded the lastest version of the module (1.9) and I'm able to complete the configuration, but when trying to start the application, I get the below errors.  If I take out the saml.startup microflow from the application startup, I don't get the errors.  I'll also see the same error when trying to activate the saml configuration, even if the saml.startup microflow hasn't run.  Is the configuration different in 7?

java.lang.NoSuchMethodError: org.apache.commons.codec.digest.DigestUtils.sha1Hex([B)Ljava/lang/String;
saml20.implementation.security.SecurityHelper.addAllToKeyStore(SecurityHelper.java:289)
saml20.implementation.security.SecurityHelper.appendToIdPKeyStore(SecurityHelper.java:271)

Thanks!