Porting to Cloud Ends Framework 2.0 for App Engine

Question

Porting to Cloud Ends Framework 2.0 for App Engine

I'm currently trying to switch from Cloud Endpoints 1.0to Cloud Endpoints Frameworks 2.0.

I followed these steps: https://cloud.google.com/appengine/docs/java/endpoints/migrating?authuser=0

In mine, build.gradleI replaced:

compile 'com.google.appengine:appengine-endpoints:1.9.42'
compile 'com.google.appengine:appengine-endpoints-deps:1.9.42'

with:

compile 'com.google.endpoints:endpoints-framework:2.0.0-beta.5'
compile 'javax.inject:javax.inject:1'

And in web.xmlI replaced SystemServiceServletby EndpointsServletand /_ah/spi/*by /_ah/api/*.

However, when compiling, I get the following error:

Error:Execution failed for task ':myapp_backend:appengineEndpointsGetClientLibs'.
> There was an error running endpoints command get-client-lib: web.xml must have 1 (found:0) SystemServiceServlet servlet

Did I miss something?

Change as @saiyr requested, here is my build.gradlefile:

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.google.appengine:gradle-appengine-plugin:1.9.42'
    }
}

repositories {
    jcenter();
}

apply plugin: 'java'
apply plugin: 'war'
apply plugin: 'appengine'

sourceCompatibility = JavaVersion.VERSION_1_7
targetCompatibility = JavaVersion.VERSION_1_7

dependencies {
    // AppEngine
    appengineSdk 'com.google.appengine:appengine-java-sdk:1.9.42'
    compile 'javax.servlet:servlet-api:2.5'

    //  Cloud Endpoints
    compile 'com.google.appengine:appengine-endpoints:1.9.42'
    compile 'com.google.appengine:appengine-endpoints-deps:1.9.42'

    // Cloud Endpoints Frameworks
    // compile 'com.google.endpoints:endpoints-framework:2.0.0-beta.7'
    // compile 'javax.inject:javax.inject:1'

    // Project
    compile files('src/main/webapp/WEB-INF/lib/gson-2.3.1.jar')
    compile 'com.googlecode.objectify:objectify:5.1.9'
    compile 'com.ganyo:gcm-server:1.0.2'
    compile 'com.google.appengine.tools:appengine-gcs-client:0.5'
}

appengine {
    downloadSdk = true
    appcfg {
        oauth2 = true
    }
    endpoints {
        getClientLibsOnBuild = true
        getDiscoveryDocsOnBuild = true
    }
}