program.pas(17,6) Error: Identifier not found "thashedstringlist"program.pas(17,23) Error: Error in type definitionprogram.pas(20,9) Error: Identifier not found "TStringToStringTree"program.pas(20,28) Error: Error in type definitionprogram.pas(22,6) Error: Identifier not found "THashedStringList"program.pas(23,6) Error: Identifier not found "TString"program.pas(24,9) Error: Identifier not found "StringToStringList"program.pas(26,7) Error: Illegal qualifierprogram.pas(28,10) Error: Illegal qualifierprogram.pas(31,9) Error: Illegal qualifierprogram.pas(35,15) Error: Illegal qualifierprogram.pas(39,10) Error: Illegal qualifierprogram.pas(40,7) Error: Illegal qualifierprogram.pas(48) Fatal: There were 13 errors compiling module, stoppingFatal: Compilation abortedError: C:\lazarus\fpc\3.0.4\bin\x86_64-win64\ppcx64.exe returned an error exitcode
And where can I find which units to add in the future?