Why Error 110 error LNK2005:?

@Armando,
can you provide with a Minimal Working Example (MWE)? Which version of ITK are you using? Which version of CMake are you using? Which CMake flags have you enabled?

If we could have your CMakeLists.txt, your code if shareable and if self-contained, and concise, fellows would be in a better position to try to answer with a fix.

Also, note that if you are using ITK master, or any release tagged after ITK 5.0 Alpha 1, you will not be able to use a Visual Studio older than 2015.

Also, note that VS 2010 is almost 10 years old, and many folks are likely not to have access to such version. Also, full-feature, community-edition VS are released regularly since a few years now, and other excellent choices, such as CLion, exist, so you may want to upgrade or switch to other more modern IDE/builder.

JON HAITZ