taskdef class com.sun.tools.ws.ant.WsImport cannot be found Following “The java web services tutorial”

Question

I saw the same issue in many different locations and even after a good portion of googling, I could not resolve it. What I am trying to do (the bigger picture) is to go through

Answer 1

I had the same problem after testing Netbeans 11 and then going back to Netbeans 8.2. The solution was the file

ProjectName\nbproject\private\private.properties

that one had an entry

user.properties.file=XXXX\\AppData\\Roaming\\NetBeans\\11.0\\build.properties

changing it back to the correct installation

user.properties.file=XXXX\\AppData\\Roaming\\NetBeans\\8.2\\build.properties

solved the problem. For some projects Netbeans popped up a dialogbox "The project ProjectName uses build.properties from another Netbeans installation", then click "Use this installation".