When i run “cd javaclient && mvn exec:exec”. I get a build failure, “failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.2.1:exec(default-cli) on project sample-java-client”

Im getting an error when starting Alexa Web Service..When I run companionService && npm start, i get an error “module.js:340 Error: Cannot find module ‘express’”

Hello receiving another error on the second terminal “Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.2.1:exec (default-cli) on project sample-java-client:Command execution failed.”

On the second terminal I’m getting a “Error: JAVA_HOME is not defined correctly.