The first error is most likely caused by JAR file dependencies that are overlapping.
If you open this project in eclipse, it will be much easier to see the errors and resolve them.
- First error (unreported exception COSVisitorException): https://forum.mendix.com/link/questions/86046
- The other error/errors seem to be related to a strange thing that can happen when importing Java actions in Mendix. Sometimes, input parameters to java actions can change names (for example from myVariable to myVariableParameter1). If you look at javasource\ldap\actions\ImportLdapGroups_Path.java and ImportLdapGroups_Group.java, you'll see the parameters passed into the action may or may not have "Parameter1" at the end of their name, and very likely elsewhere in the action those variables are referenced the other way. Change the references in the rest of the action to match whatever they're called in the declaration.