Jetty 6 Maven Plugin fails to start on Intellij -

i'm moving eclipse intellij, , switching tomcat jetty in dev environment. tomcat plugin works fine, when start jetty outputs following error:

failed execute goal org.mortbay.jetty:maven-jetty-plugin:6.1.2:run (default-cli) on project projeto: webapp source directory c:\users\evcash - blue\workspace\projeto\src\main\webapp not exist -> [help 1]  org.apache.maven.lifecycle.lifecycleexecutionexception: failed execute goal org.mortbay.jetty:maven-jetty-plugin:6.1.2:run (default-cli) on project projeto: webapp source directory c:\users\evcash - blue\workspace\projeto\src\main\webapp not exist 

here pom.xml:

    <build>       <plugins>         <plugin>             <groupid>org.mortbay.jetty</groupid>             <artifactid>maven-jetty-plugin</artifactid>             <version>6.1.2</version>             <configuration>                 <connectors>                     <connector implementation="org.mortbay.jetty.nio.selectchannelconnector">                         <port>8080</port>                     </connector>                 </connectors>                 <scanintervalseconds>10</scanintervalseconds>             </configuration>         </plugin>         ...      </plugins>    </build> 

and run configuration:

jetty:run -e 

i tried using jetty-runner plugin, requires jdk 1.8 , must use 1.7 version.

any ideas? in advance