Failed to deploy war on heroku - scala

Question

trying to deploy war to heroku
using maven 3.2.5
mvn clean heroku:deploy-war
getting this exception:
[ERROR] Failed to execute goal com.heroku.sdk:heroku-maven-plugin:0.3.0:deploy-war (default-cli) on project MyApp: Failed to deploy application: There was an exception invoking the remote service: HTTP(404): https://api.heroku.com/apps/MyApp/config-vars -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal com.heroku.sdk:heroku-maven-plugin:0.3.0:deploy-war (default-cli) on project MyApp: Failed to deploy application
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:212)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:120)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:355)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:155)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:584)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:216)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:160)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
Caused by: org.apache.maven.plugin.MojoFailureException: Failed to deploy application
at com.heroku.sdk.maven.DeployWarMojo.execute(DeployWarMojo.java:58)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:132)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)
... 19 more
Caused by: com.heroku.sdk.deploy.Curl$CurlException: There was an exception invoking the remote service: HTTP(404)
at com.heroku.sdk.deploy.Curl.handleResponse(Curl.java:94)
at com.heroku.sdk.deploy.Curl.get(Curl.java:22)
at com.heroku.sdk.deploy.App.getConfigVars(App.java:139)
at com.heroku.sdk.deploy.App.deploy(App.java:77)
at com.heroku.sdk.deploy.App.deploy(App.java:93)
at com.heroku.sdk.deploy.WarApp.deploy(WarApp.java:38)
at com.heroku.sdk.maven.DeployWarMojo.execute(DeployWarMojo.java:54)
... 21 more
Caused by: java.io.FileNotFoundException: https://api.heroku.com/apps/MyApp/config-vars
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1624)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:254)
at com.heroku.sdk.deploy.Curl.handleResponse(Curl.java:90)
... 27 more
this is how my pom looks like:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.avi</groupId>
<artifactId>MyApp</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<description>My GoTickets Web App</description>
<inceptionYear>2014</inceptionYear>
<properties>
<scala.version>2.11.4</scala.version>
<spray.version>1.3.1</spray.version>
<akka.version>2.3.8</akka.version>
</properties>
<repositories>
<repository>
<id>scala-tools.org</id>
<name>Scala-Tools Maven2 Repository</name>
<url>http://scala-tools.org/repo-releases</url>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>scala-tools.org</id>
<name>Scala-Tools Maven2 Repository</name>
<url>http://scala-tools.org/repo-releases</url>
</pluginRepository>
</pluginRepositories>
<dependencies>
<dependency>
<groupId>org.scala-lang</groupId>
<artifactId>scala-library</artifactId>
<version>${scala.version}</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.9</version>
<scope>test</scope>
</dependency>
<dependency>
<scope>test</scope>
<groupId>org.specs2</groupId>
<artifactId>specs2-core_2.11</artifactId>
<version>2.4.15</version>
</dependency>
<dependency>
<scope>test</scope>
<groupId>com.typesafe.akka</groupId>
<artifactId>akka-testkit_2.11</artifactId>
<version>${akka.version}</version>
</dependency>
<dependency>
<groupId>org.scalatest</groupId>
<artifactId>scalatest_2.11</artifactId>
<version>2.2.3</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.spray</groupId>
<artifactId>spray-can</artifactId>
<version>${spray.version}</version>
</dependency>
<dependency>
<groupId>io.spray</groupId>
<artifactId>spray-routing</artifactId>
<version>${spray.version}</version>
</dependency>
<dependency>
<groupId>io.spray</groupId>
<artifactId>spray-json_2.11</artifactId>
<version>${spray.version}</version>
</dependency>
<dependency>
<groupId>com.typesafe.akka</groupId>
<artifactId>akka-actor_2.11</artifactId>
<version>${akka.version}</version>
</dependency>
<dependency>
<groupId>com.typesafe.akka</groupId>
<artifactId>akka-slf4j_2.11</artifactId>
<version>${akka.version}</version>
</dependency>
<dependency>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.5</version>
</dependency>
</dependencies>
<build>
<sourceDirectory>src/main/scala</sourceDirectory>
<testSourceDirectory>src/test/scala</testSourceDirectory>
<plugins>
<plugin>
<groupId>net.alchim31.maven</groupId>
<artifactId>scala-maven-plugin</artifactId>
<version>3.2.0</version>
<executions>
<execution>
<goals>
<goal>compile</goal>
<goal>testCompile</goal>
</goals>
</execution>
</executions>
<configuration>
<scalaVersion>${scala.version}</scalaVersion>
</configuration>
</plugin>
<plugin>
<groupId>com.heroku.sdk</groupId>
<artifactId>heroku-maven-plugin</artifactId>
<version>0.3.0</version>
<configuration>
<appName>MyApp</appName>
</configuration>
</plugin>
</plugins>
</build>
</project>

Answer 1

Your appName is incorrect in the Heroku plugin configuration. Heroku apps must start with a letter and can only contain lowercase letters, numbers, and dashes. Therefore MyApp cannot be correct.
Check your apps page in the Heroku dashboard and find the name of your application then update the configuration accordingly. Here is an example of the plugin config with a randomly named Heroku app:
<plugin>
<groupId>com.heroku.sdk</groupId>
<artifactId>heroku-maven-plugin</artifactId>
<version>0.3.0</version>
<configuration>
<appName>hidden-badlands-1234</appName>
</configuration>
</plugin>