Frequently Asked Questions

1. What are the differences between using GTNetS on Windows and using GTNetS on Linux/OSX/Sun OS?

GTNetS on Windows
GTNetS on Linux/OSX/Sun OS
Does not support seeding from /dev/random
BGP not supported
BRITE not supported

2. I get the error LNK1104 : Cannot open file ‘.\Release\netihttp-distributions.obj’ in Visual Studio

Rebuilding the solution may help. Note: is a large file and takes time to compile.

3. Sometimes the build process gets suspended in Visual Studio

Canceling the build and rebuilding may help.

4. Can I make use of gnuplot if I use GTNetS in Windows?

Yes. There is a windows version of Gnuplot.

5. Is Windows Vista supported?

Some users have had success with Vista and some have not. It’s a work in progress

6. I get the following error message when I execute "cl.exe" The application has failed to start because mspdb80.dll was not found.

Search for the following files
  • msobj80.dll
  • mspdb80.dll
  • mspdbcore.dll
  • mspdbsrv.exe
They are usually under C:\Program Files\Microsoft Visual Studio 8\Common7\IDE. Copy the file and paste it to the folder containing "cl.exe" (usually C:\Program Files\Microsoft Visual Studio 8\Vc\bin)

7. I get the following error when trying build the static libraries NMAKE : fatal error U1077: '"c:\program files\microsoft visual studio 8\vc\bin\cl.EXE"' : return code '0xc0000135'

This could happen if "cl.exe" is not in your PATH, or mspdb80.dll is missing from the folder containing "cl.exe". Refer FAQ 6.

8. I get a compile-time error “StartAnimation not found” .

Make sure you have you Qt installed correctly. GTNetS animations are only enabled with the “HAVE_QT” preprocessor macro defined in the Makefile Compiler flags.

9. I get the error msvcprt.lib(MSVCP80.dll) : error LNK2005: "class std::basic_ostream > & __cdecl.....already defined in qt-mt.lib(qcolor.obj).

You may be using Visual studio 2003 instead of Visual Studio 2005, or you have built qt for msvc 2003 instead of msvc 2005. Perhaps even using /FORCE:MULTIPLE may help.

10. I get the error “fatal error C1902: Program database manager mismatch; please check your installation”

Reinstalling Visual Studio 2005 (after uninstalling it and deleting all folders from Program Files) may help. 

11. The Simulation runs slowly (Simulation Timer increases slowly)

Try disabling Animation and debug print statements

12. Qt3 installation on Ubuntu fails / GTNetS complains QT not found during installation

On Ubuntu you may need to install the following packages at the minimum.

libqt3-headers - Qt3 header files
libqt3-mt - Qt GUI Library (Threaded runtime version), Version 3
libqt3-mt-dev - Qt development files (Threaded)
qt3-dev-tools - Qt3 development tools
For a more exhaustive list of qt3 packages ,please try

apt-cache search qt | grep qt3

For specific queries, please contact us here.