8. Compilation Errors
8.1. Types of Errors
When you create a (La)TeX source file you will make mistakes:
- Those that (La)TeX notices
 
- 
  (La)TeX will report an error and stop to await instruction, for
  example
  
 | 
  LaTeX error.  See LaTeX manual for explanation.
                Type  H <return>  for immediate help.
  ! Environment itemie undefined.
  \@latexerr ...for immediate help.}\errmessage {#1}
                                                    \endgroup
  l.140 \begin{itemie}
  ? | 
 
- Those that it doesn't
 
- 
  Your document won't look as you intended!  
 
8.2. The Error Message
- The third line (beginning with a "!") is the error 
    indicator (what the error is).  
 - Next two lines tell what (La)TeX was doing.
 - Next, the error locator 
    
    - Sometimes (La)TeX has passed the true error...
    
 
 
8.3. Your Options
- Type "X" or "x" and "return" to stop compilation.
 - Hit "return" to allow the compiler to continue...
    
    - Isolated errors...
    
 - Error cascades...