[Boost-users] directory_iterator TypeLoadException

Hello, I tried to run SimpleLs program, but got a TypeLoadException at the line below. I use boost-1.30.2, MSVC++7.0 Any idea what could be causing the problem? for ( fs::directory_iterator dir_itr( full_path ); dir_itr != end_iter; ++dir_itr ) // exception thrown here Output: In directory: C:\src\cpp Unhandled Exception: System.TypeLoadException: Could not load type boost.filesystem.dir_itr_imp from assembly Filesystem Demo, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null. at boost.==(shared_ptrboost::filesystem::directory_iterator::dir_itr_imp* a, shared_ptr* b) at boost.filesystem.!=(directory_iterator* x, directory_iterator* y) in c:\lib\cpp\boost-1.30.2\boost\filesystem\oper ations.hpp:line 93 at main(Int32 argc, SByte** argv) in c:\src\cpp\boost\filesystemdemo\simplels.cpp:line 44