title: Springboot Application threw a java.lang.IllegalStateException
body: <p>I don't know how this SpringBoot Application reports me that</p>
  <pre><code>java.lang.IllegalStateException: Failed to load property source from 'file:/E:/Workspaces/FME_BSKY/bpsoft-service-bll/server/target/classes/application.yml' (classpath:/application.yml)
  </code></pre>
  <p>Some say that means the app is encoded by <code>UTF-8</code> and my <code>application.yml</code> is in <code>GBK</code>, but I checked over it for over a hundred times, they are all encoded by <code>UTF-8</code>.</p>