can not install mininet

Error is shown as below:
    make[2]: **\* [nbpflcompiler/CMakeFiles/nbpflcompiler.dir/parser.cpp.o] 错误 1
    make[1]: **\* [nbpflcompiler/CMakeFiles/nbpflcompiler.dir/all] 错误 2
    make: **\* [all] 错误 2
the installation command is "util/install.sh -3nfxL". At Mininet's office site, I see the command is "install.sh -fnl", and which one is right ?
