how to solve this conflict


when i build hello.cpp, it show following conflict:

Did you upgrade your C++ front-end to the 1.1 version? The 1.0 version
has many problems. If so, please give more information, such as where you
got the C++ front-end (precompiled, source), what version it is, what
version of the LLVM tools you are using, etc. I am not seeing this error
with the 1.1 front-end running CVS tools on X86-linux.