java - Annotation exception with Dagger 2 -

i'm trying integrate dagger 2 dependency injection framework vaadin. looks there possible conflict guava version included vaadin , dagger's guava dependency. i've narrowed down build command vaadin:compile in intellij results in following:

[error] failed execute goal org.apache.maven.plugins:maven-compiler-plugin:3.0:compile (default-compile) on project vaadin: compilation failure [error] failure executing javac, not parse error: [error]  [error]  [error] annotation processor threw uncaught exception. [error] consult following stack trace details. [error] java.lang.nosuchmethoderror: com.google.common.collect.multimaps.filterkeys(lcom/google/common/collect/setmultimap;lcom/google/common/base/predicate;)lcom/google/common/collect/setmultimap; 

i've tried changing scope of dagger compiler in build path provided still encounters issue.

is there way resolve compile time issue between vaadin , dagger?

so can happen when mobile dev using dagger , try switching web app development maven. failed understand / read instructions using dagger 2 maven:

in maven project, 1 include runtime in dependencies section of pom.xml, , dagger-compiler artifact dependency of compiler plugin:

using gradle, place imports in same place in build.gradle. realized needed add compiler separate section of pom.xml maven plugin compiler:

<plugin>     <groupid>org.apache.maven.plugins</groupid>     <artifactid>maven-compiler-plugin</artifactid>         <dependencies>             <dependency>                 <groupid>org.codehaus.plexus</groupid>                 <artifactid>plexus-compiler-javac</artifactid>                 <version>1.8.6</version>             </dependency>             **<dependency>                 <groupid>com.google.dagger</groupid>                 <artifactid>dagger-compiler</artifactid>                 <version>2.0</version>                 <optional>true</optional>             </dependency>**         </dependencies>     </plugin> 

lesson learned.