title: error: could not find or load main class Hello.class
body: <p>Trying simplest kotlin hello world possible:</p>
  
  <pre><code>thufir@dur:~/kotlin$ 
  thufir@dur:~/kotlin$ ll
  total 32
  drwxr-xr-x  2 thufir thufir  4096 Oct 27 07:28 ./
  drwx------ 46 thufir thufir 16384 Oct 27 06:47 ../
  -rw-r--r--  1 thufir thufir   104 Oct 27 07:27 Hello.kt
  thufir@dur:~/kotlin$ 
  thufir@dur:~/kotlin$ kotlinc Hello.kt 
  WARNING: An illegal reflective access operation has occurred
  WARNING: Illegal reflective access by com.intellij.util.text.StringFactory to constructor java.lang.String(char[],boolean)
  WARNING: Please consider reporting this to the maintainers of com.intellij.util.text.StringFactory
  WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
  WARNING: All illegal access operations will be denied in a future release
  thufir@dur:~/kotlin$ 
  thufir@dur:~/kotlin$ kotlin Hello.class 
  error: could not find or load main class Hello.class
  thufir@dur:~/kotlin$ 
  thufir@dur:~/kotlin$ cat Hello.kt 
  class Hello {
  
  
  
      fun main(args: Array&lt;String&gt;) {
          println("Hello, world!" + args[0])
      }
  }
  thufir@dur:~/kotlin$ 
  thufir@dur:~/kotlin$ kotlinc -version
  info: kotlinc-jvm 1.1.51 (JRE 9.0.0.15+181)
  thufir@dur:~/kotlin$ 
  </code></pre>
  
  <p>How do I run that from the CLI?</p>
  
  <p>desired output:</p>
  
  <pre><code>thufir@dur:~/kotlin$ 
  thufir@dur:~/kotlin$ kotlinc
  Welcome to Kotlin version 1.1.51 (JRE 9.0.0.15+181)
  Type :help for help, :quit for quit
  &gt;&gt;&gt; 
  &gt;&gt;&gt; println("hello world");
  WARNING: An illegal reflective access operation has occurred
  WARNING: Illegal reflective access by com.intellij.util.text.StringFactory to constructor java.lang.String(char[],boolean)
  WARNING: Please consider reporting this to the maintainers of com.intellij.util.text.StringFactory
  WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
  WARNING: All illegal access operations will be denied in a future release
  hello world
  &gt;&gt;&gt; 
  &gt;&gt;&gt; :quit
  thufir@dur:~/kotlin$ 
  </code></pre>