title: CMake Error at CMakeLists.txt (target_link_libraries)
body: <p>I have a problem with CMake. I have wrote a CMakeList.txt file. But when I run it with Cmake I got a strange error "CMake Error at CMakeLists.txt:17 (target_link_libraries):
    Cannot specify link libraries for target "debug" which is not built by this
    project.".</p>
  
  <p>Is it possible to create a Cmake file that can build a project file for Debug and Release mode at the same time? Or is there a simple way to fix this error?</p>
  
  <p>My CMakeLists.txt looks like this:</p>
  
  <pre><code>  cmake_minimum_required (VERSION 2.8)
  
  project (SimuVille)
  
  # Import required CMake files
  set (CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake/Modules")
  
  file(GLOB_RECURSE files
      "*.cpp"
  )
  
  add_executable(debug ${files})
  
  # Find the find Modules
  set(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake_modules" ${CMAKE_MODULE_PATH})
  
  #Find any version 2.X of SFML
  #See the FindSFML.cmake file for additional details and instructions
  find_package(SFML 2 REQUIRED system window graphics network audio)
  if(SFML_FOUND)
      include_directories(${SFML_INCLUDE_DIR})
      target_link_libraries(${EXECUTABLE_NAME} ${SFML_LIBRARIES})
  endif()
  
  
  #Find SfeMovie
  find_package(sfeMovie REQUIRED)
  if(SFEMOVIE_FOUND)
      include_directories(${SFEMOVIE_INCLUDE_DIR})
      target_link_libraries(${EXECUTABLE_NAME} ${SFEMOVIE_LIBRARY})
  endif()
  
  #Find Assimp
  find_package(ASSIMP REQUIRED)
  if(ASSIMP_FOUND)
      include_directories(${ASSIMP_INCLUDE_DIR})
      target_link_libraries(${EXECUTABLE_NAME} ${ASSIMP_LIBRARY})
  endif()
  
  #Find DevIL
  find_package(DevIL REQUIRED)
  if(IL_FOUND)
      include_directories(${IL_INCLUDE_DIR})
      target_link_libraries(${EXECUTABLE_NAME} ${IL_LIBRARY})
      target_link_libraries(${EXECUTABLE_NAME} ${ILU_LIBRARY})
      target_link_libraries(${EXECUTABLE_NAME} ${ILUT_LIBRARY})
  endif()
  
  #Find opengl libs
  find_package(OpenGL REQUIRED)
  include_directories(${OpenGL_INCLUDE_DIRS})
  link_directories(${OpenGL_LIBRARY_DIRS})
  add_definitions(${OpenGL_DEFINITIONS})
  if(NOT OPENGL_FOUND)
      message(ERROR " OPENGL not found!")
  endif(NOT OPENGL_FOUND)
  
  #file(GLOB_RECURSE hfiles
  #    "*.h"
  #)
  
  #add_executable(SimuVille ${hfiles})
  
  
  LINK_DIRECTORIES(${CMAKE_SOURCE_DIR}/Game)
  LINK_DIRECTORIES(${CMAKE_SOURCE_DIR}/GameEngine)
  LINK_DIRECTORIES(${CMAKE_SOURCE_DIR}/GameEngine/SfmlObject)
  LINK_DIRECTORIES(${CMAKE_SOURCE_DIR}/GameEngine/Camera)
  LINK_DIRECTORIES(${CMAKE_SOURCE_DIR}/GameEngine/OpenglObject)
  LINK_DIRECTORIES(${CMAKE_SOURCE_DIR}/GameEngine/Playable)
  </code></pre>
  
  <p>Edit: Added new source code.</p>