title: Spring Boot Samples FileNot found error
body: <p>I am folowing the examples about spring boot project. 
  I have compiled and created a jar file via maven but having an error while running attempt.</p>
  
  <p><a href="https://github.com/spring-projects/spring-boot/tree/master/spring-boot-samples/spring-boot-sample-simple" rel="nofollow noreferrer">https://github.com/spring-projects/spring-boot/tree/master/spring-boot-samples/spring-boot-sample-simple</a></p>
  
  <p>Project folders:
  <img src="https://i.stack.imgur.com/ySEGw.png" alt="enter image description here"></p>
  
  <p><strong>Error:</strong></p>
  
  <p>java -jar spring-boot-sample-simple-1.1.3.BUILD-SNAPSHOT.jar</p>
  
  <pre><code>014-06-25 09:10:00.653 ERROR 12028 --- [           main] o.s.boot.SpringApplication               : Application startup failed
  
  ava.lang.IllegalStateException: Unable to load configuration files
         at org.springframework.boot.context.config.ConfigFileApplicationListener.addPropertySources(ConfigFileApplicationListener.java:158)
         at org.springframework.boot.context.config.ConfigFileApplicationListener.onApplicationEnvironmentPreparedEvent(ConfigFileApplicationListener.j
  va:138)
         at org.springframework.boot.context.config.ConfigFileApplicationListener.onApplicationEnvironmentPreparedEvent(ConfigFileApplicationListener.j
  va:131)
         at org.springframework.boot.context.config.ConfigFileApplicationListener.onApplicationEvent(ConfigFileApplicationListener.java:120)
         at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:98)
         at org.springframework.boot.context.event.EventPublishingRunListener.publishEvent(EventPublishingRunListener.java:100)
         at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:59)
         at org.springframework.boot.SpringApplication.run(SpringApplication.java:277)
         at org.springframework.boot.SpringApplication.run(SpringApplication.java:944)
         at org.springframework.boot.SpringApplication.run(SpringApplication.java:933)
         at sample.simple.SampleSimpleApplication.main(SampleSimpleApplication.java:46)
         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
         at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
         at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
         at java.lang.reflect.Method.invoke(Unknown Source)
         at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:53)
         at java.lang.Thread.run(Unknown Source)
  aused by: java.io.FileNotFoundException: class path resource [application.properties] cannot be opened because it does not exist
         at org.springframework.core.io.ClassPathResource.getInputStream(ClassPathResource.java:172)
         at org.springframework.core.io.support.PropertiesLoaderUtils.fillProperties(PropertiesLoaderUtils.java:132)
         at org.springframework.core.io.support.PropertiesLoaderUtils.loadProperties(PropertiesLoaderUtils.java:121)
         at org.springframework.boot.env.PropertiesPropertySourceLoader.load(PropertiesPropertySourceLoader.java:44)
         at org.springframework.boot.env.PropertySourcesLoader.load(PropertySourcesLoader.java:126)
         at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.loadIntoGroup(ConfigFileApplicationListener.java:360)
         at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:349)
         at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:317)
         at org.springframework.boot.context.config.ConfigFileApplicationListener.addPropertySources(ConfigFileApplicationListener.java:155)
         ... 16 common frames omitted
  </code></pre>