View Compilation Error

0_0_15107699_12310.pas(3,18) Error: Identifier not found "longist"
0_0_15107699_12310.pas(3,18) Error: Error in type definition
0_0_15107699_12310.pas(7,2) Error: Illegal type conversion: "<erroneous type>" to "Real"
0_0_15107699_12310.pas(7,9) Error: Illegal expression
0_0_15107699_12310.pas(12,10) Error: Can't read or write variables of this type
0_0_15107699_12310.pas(13,15) Fatal: Syntax error, ")" expected but ":=" found
Fatal: Compilation aborted
Error: Pascel\bin\i386-win32\ppc386.exe returned an error exitcode (normal if you did not specify a source file to be compiled)