error: Unexpected error: Illegal name .$HelloControllerDefinition

问题

I have followed the Getting Started. First start of Application was Ok. Then I added a Controller as described (HelloController.java in src/main/java/helloworld. When I restart the server, I get the following error:

c:\dev\micronaut\helloworld>gradlew run

Task :compileJava FAILED Note: Creating bean classes for 1 type elements error: Unexpected error: Illegal name .$HelloControllerDefinition 1 error

I am under Windows 10 with jdk 1.8_171

回答1:

As Graeme Rocher mentioned, the class is missing it's package. If you add the line I've added below, it should work.

package helloworld;

import io.micronaut.http.annotation.*;

@Controller("/hello")
public class HelloController {
    @Get
    public String index() {
        return "Hello World";
    }
}

来源：https://stackoverflow.com/questions/51057886/error-unexpected-error-illegal-name-hellocontrollerdefinition