View Compilation Error

0_0_15219414_26846.pas(20,29) Error: Identifier not found "writenln"
0_0_15219414_26846.pas(22,4) Fatal: There were 1 errors compiling module, stopping
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)