dagger2在AndroidX如何使用

[hanwentong]

dagger2的版本修改为2.19,项目就运行不起来了，提示错误如下：
错误: [ComponentProcessor:MiscError] dagger.internal.codegen.ComponentProcessor was unable to process this interface because not all of its dependencies could be resolved. Check for compilation errors or a circular dependency with generated code.
public interface AppComponent {
^

[hanwentong]

如果使用原项目的dagger2版本2.15，则fragmentationx使用不了