Hi, when I compile TUDOS/lEnv tree downloaded form svn.tudo.org , many errors apear in /todu/dice/src/parser/idl: {{{ g++ -DHAVE_CONFIG_H -I. -I. -I../../.. -I../../../src -Wall -I../../../src -g -O2 -MT idl-parser.tab.o -MD -MP -MF .deps/idl-parser.tab.Tpo -c -o idl-parser.tab.o idl-parser.tab.cc In file included from idl-parser.yy:109:0: idl-parser-driver.hh:62:1: error： ‘token_type’ in ‘class yy::idl_parser’ does not name a type idl-parser.tab.cc: in function‘virtual int yy::idl_parser::parse()’: idl-parser.tab.cc:352:42: error： ‘idllex' not declared in this scope make[7]: *** [idl-parser.tab.o] Error 1 make[7]: Leaving directory ‘/todu/dice/src/parser/idl’ make[6]: *** [all-recursive] Error 1 make[6]: Leaving directory ‘todu/dice/src/parser’ }}} Any help is appreciated yuqing wang