Command Reference2.  FPGA Express Shell Commands       error_info



_N_A_M_E
          error_info     Prints extended information on errors
                         from last command.


SYNTAX
          string error_info


DESCRIPTION
          The error_info command is used to display information
          after an error has occurred.  Tcl collects information
          showing the call stack of commands and procedures.
          When an error occurs, the error_info command can help
          you to focus on the exact line in a block which caused
          the error.



EXAMPLES
          This example shows how error_info can be used to trace
          an error.  The error is that the iterator variable "s"
          is not dereferenced in the 'if' statement. It should be
          '$s == "a" '.

               shell> foreach s $my_list {
               ?         if { s == "a" } {
               ?           echo "Found 'a'!"
               ?         }
               ?       }
               Error: syntax error in expression " s == "a" "
                      Use error_info for more info. (CMD-013)
               shell> error_info
               Extended error info:
               syntax error in expression " s == "a" "
                   while executing
               "if { s == a } {
                    echo "Found 'a'"
               }"
                   ("foreach" body line 2)
                   invoked from within
               "foreach s [list a b c] {
                  if { s == a } {
                    echo "Found 'a'"
               }
               }"
                -- End Extended Error Info

SEE ALSO
          None.





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