When starting Tomcat with Cargo then start fails if in Tomcat server.xml is no AJP-Connector specified. The following error occurs:
It isn't possible to deactivate the replacement of the AJP-Connector. AJP is only need when running behind mod_jk and if you don't want to open the AJP-Port with Tomcat this isn't possible with cargo.
The replacement is specified in Tomcat5xStandaloneLocalConfiguration.java
I think the error could be ignored if not possible to replace the value.
XmlReplacementDetails.java has already the option to ignore such errors.