Simple Demo Fail MT5

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I tried to test following example:
Buy when there is no trade

And received via MT5 100 errors...?

Help!

'FirstExpert.mq5' FirstExpert.mq5 1 1
'OP_BUY' - undeclared identifier FirstExpert.mq5 3854 16
'OP_BUY' - constant expected FirstExpert.mq5 3854 16
'RefreshRates' - function not defined FirstExpert.mq5 300 30
'iTime' - function not defined FirstExpert.mq5 819 15
'TimeYear' - function not defined FirstExpert.mq5 842 20
'TimeMonth' - function not defined FirstExpert.mq5 842 44
'TimeDay' - function not defined FirstExpert.mq5 842 69
'TimeHour' - function not defined FirstExpert.mq5 843 20
'TimeMinute' - function not defined FirstExpert.mq5 843 45
'TimeSeconds' - function not defined FirstExpert.mq5 843 72
'TimeDayOfWeek' - function not defined FirstExpert.mq5 859 21
'SELECT_BY_POS' - undeclared identifier FirstExpert.mq5 533 27
'MODE_TRADES' - undeclared identifier FirstExpert.mq5 533 42
'OrderSelect' - wrong parameters count FirstExpert.mq5 533 10
'AccountBalance' - function not defined FirstExpert.mq5 973 27
'MODE_LOTSTEP' - undeclared identifier FirstExpert.mq5 981 37
'MarketInfo' - function not defined FirstExpert.mq5 981 19
'MODE_LOTSIZE' - undeclared identifier FirstExpert.mq5 982 37
'MarketInfo' - function not defined FirstExpert.mq5 982 19
'MODE_MINLOT' - undeclared identifier FirstExpert.mq5 983 37
'MarketInfo' - function not defined FirstExpert.mq5 983 19
'MODE_MAXLOT' - undeclared identifier FirstExpert.mq5 984 37
'MarketInfo' - function not defined FirstExpert.mq5 984 19
'MODE_MARGINREQUIRED' - undeclared identifier FirstExpert.mq5 985 45
'MarketInfo' - function not defined FirstExpert.mq5 985 27
'MODE_POINT' - undeclared identifier FirstExpert.mq5 1025 36
'MarketInfo' - function not defined FirstExpert.mq5 1025 18
'MODE_DIGITS' - undeclared identifier FirstExpert.mq5 1026 41
'MarketInfo' - function not defined FirstExpert.mq5 1026 23
'OP_BUYSTOP' - undeclared identifier FirstExpert.mq5 1034 16
'OP_BUYLIMIT' - undeclared identifier FirstExpert.mq5 1035 16
'OP_SELL' - undeclared identifier FirstExpert.mq5 1041 13
'OP_SELLSTOP' - undeclared identifier FirstExpert.mq5 1042 16
'OP_SELLLIMIT' - undeclared identifier FirstExpert.mq5 1043 16
'OP_SELL' - undeclared identifier FirstExpert.mq5 1053 30
'MODE_ASK' - undeclared identifier FirstExpert.mq5 1055 37
'MarketInfo' - function not defined FirstExpert.mq5 1055 19
'MODE_BID' - undeclared identifier FirstExpert.mq5 1056 37
'MarketInfo' - function not defined FirstExpert.mq5 1056 19
'MODE_STOPLEVEL' - undeclared identifier FirstExpert.mq5 1078 38
'MarketInfo' - function not defined FirstExpert.mq5 1078 20
'MODE_FREEZELEVEL' - undeclared identifier FirstExpert.mq5 1080 44
'MarketInfo' - function not defined FirstExpert.mq5 1080 26
'DoubleToStr' - function not defined FirstExpert.mq5 1102 13
'DoubleToStr' - function not defined FirstExpert.mq5 1117 13
'DoubleToStr' - function not defined FirstExpert.mq5 1119 13
'DoubleToStr' - function not defined FirstExpert.mq5 1121 13
'DoubleToStr' - function not defined FirstExpert.mq5 1123 13
'MODE_TICKSIZE' - undeclared identifier FirstExpert.mq5 1133 41
'MarketInfo' - function not defined FirstExpert.mq5 1133 22
'MODE_POINT' - undeclared identifier FirstExpert.mq5 1156 37
'MarketInfo' - function not defined FirstExpert.mq5 1156 19
'MODE_DIGITS' - undeclared identifier FirstExpert.mq5 1157 42
'MarketInfo' - function not defined FirstExpert.mq5 1157 24
'OP_BUYSTOP' - undeclared identifier FirstExpert.mq5 1164 16
'OP_BUYLIMIT' - undeclared identifier FirstExpert.mq5 1165 16
'OP_SELL' - undeclared identifier FirstExpert.mq5 1171 13
'OP_SELLSTOP' - undeclared identifier FirstExpert.mq5 1172 16
'OP_SELLLIMIT' - undeclared identifier FirstExpert.mq5 1173 16
'OP_SELL' - undeclared identifier FirstExpert.mq5 1183 30
'MODE_ASK' - undeclared identifier FirstExpert.mq5 1185 37
'MarketInfo' - function not defined FirstExpert.mq5 1185 19
'MODE_BID' - undeclared identifier FirstExpert.mq5 1186 37
'MarketInfo' - function not defined FirstExpert.mq5 1186 19
'MODE_STOPLEVEL' - undeclared identifier FirstExpert.mq5 1208 38
'MarketInfo' - function not defined FirstExpert.mq5 1208 20
'MODE_FREEZELEVEL' - undeclared identifier FirstExpert.mq5 1210 44
'MarketInfo' - function not defined FirstExpert.mq5 1210 26
'DoubleToStr' - function not defined FirstExpert.mq5 1231 13
'DoubleToStr' - function not defined FirstExpert.mq5 1246 13
'DoubleToStr' - function not defined FirstExpert.mq5 1248 13
'DoubleToStr' - function not defined FirstExpert.mq5 1250 13
'DoubleToStr' - function not defined FirstExpert.mq5 1252 13
'MODE_TICKSIZE' - undeclared identifier FirstExpert.mq5 1261 41
'MarketInfo' - function not defined FirstExpert.mq5 1261 22
'SELECT_BY_POS' - undeclared identifier FirstExpert.mq5 1371 29
'MODE_TRADES' - undeclared identifier FirstExpert.mq5 1371 44
'OrderSelect' - wrong parameters count FirstExpert.mq5 1371 12
'OrderMagicNumber' - function not defined FirstExpert.mq5 1372 11
'OrderSymbol' - function not defined FirstExpert.mq5 1373 11
implicit conversion from 'number' to 'string' FirstExpert.mq5 1373 11
'OrderOpenTime' - function not defined FirstExpert.mq5 1374 27
'OrderExpiration' - function not defined FirstExpert.mq5 1375 7
'OrderExpiration' - function not defined FirstExpert.mq5 1375 32
'OrderCloseTime' - function not defined FirstExpert.mq5 1375 53
'OrderLots' - function not defined FirstExpert.mq5 1378 15
'OrderClosePrice' - function not defined FirstExpert.mq5 1381 16
'OrderOpenPrice' - function not defined FirstExpert.mq5 1381 34
'OrderSymbol' - function not defined FirstExpert.mq5 1382 53
implicit conversion from 'number' to 'string' FirstExpert.mq5 1382 53
'OrdersHistoryTotal' - function not defined FirstExpert.mq5 1397 13
'SELECT_BY_POS' - undeclared identifier FirstExpert.mq5 1400 31
'MODE_HISTORY' - undeclared identifier FirstExpert.mq5 1400 46
'OrderSelect' - wrong parameters count FirstExpert.mq5 1400 14
'OrderMagicNumber' - function not defined FirstExpert.mq5 1401 14
'OrderSymbol' - function not defined FirstExpert.mq5 1402 14
implicit conversion from 'number' to 'string' FirstExpert.mq5 1402 14
'OrderType' - function not defined FirstExpert.mq5 1403 8
'OP_SELL' - undeclared identifier FirstExpert.mq5 1403 22
'OrderLots' - function not defined FirstExpert.mq5 1406 18
'OrderClosePrice' - function not defined FirstExpert.mq5 1409 19
'OrderOpenPrice' - function not defined FirstExpert.mq5 1409 37
implicit conversion from 'number' to 'string' FirstExpert.mq5 1410 56
100 error(s), 4 warning(s) 100 5

[fxDreema]

All examples are MQL4 only. If you generate .mq4 file and simply rename it to .mq5, it will most probably not work correctly.