【MSCE C++】无法用CreateProcessA来启动microstation

    auto working_dir = std::experimental::filesystem::current_path().string(); 
    STARTUPINFO startup_info {};
    startup_info.cb = sizeof(STARTUPINFO);
    PROCESS_INFORMATION processor_information
    {};

    auto microstation_command_line = "(C:\\Program Files\\Bentley\\MicroStation CONNECT Edition\\MicroStation\\microstation.exe -R \")" + dgn_file + "\"";
    auto a = std::string(R"(C:\Program Files\Bentley\MicroStation CONNECT Edition\MicroStation\microstation.exe)");
    CreateProcessA(
            nullptr,
            &a[0],
            nullptr,
            nullptr,
            FALSE,
            NORMAL_PRIORITY_CLASS | CREATE_NEW_CONSOLE | DEBUG_ONLY_THIS_PROCESS,
            nullptr,
            &working_dir[0],
            &startup_info,
            &processor_information);

以上是代码示例。我用别的程序（chrome.exe）试可以启动