Build error lex.yy.cc

[fmrico]

I get this error when compiling:

g++ -c pddl+.cpp  -g -O2 -ggdb -DYYMAXDEPTH=25000    
In file included from pddl+.yacc:1423:0:
lex.yy.cc: In member function ‘virtual int yyFlexLexer::yylex()’:
lex.yy.cc:1169:9: error: no match for ‘operator=’ (operand types are ‘std::istream {aka std::basic_istream<char>}’ and ‘std::istream* {aka std::basic_istream<char>*}’)
    yyin = & std::cin;
         ^

This file is generated from pddl+.lex , but I can not see the problem ¿Versions of flex?

I am using Ubuntu 16.04 LTS

[pstaerk]

Same here.

[qq765490023]

same, i am using ubuntu18.04

[mormoassaf]

same, mac

[dgarcu]

Same here!

In the mean time, I am trying this...

[Juancams]

Try this