Use BUILD_NUGET_PACKAGE to build nuget package.

platforms/nuget/Emgu.CV.Models/CMakeLists.txt

@@ -4,11 +4,14 @@
 
 IF ((TARGET Emgu.CV.Models.NetStandard) AND (TARGET Emgu.CV.Models.IOS))
   PROJECT(Emgu.CV.Models.nuget)
-  ADD_CUSTOM_TARGET(
-    ${PROJECT_NAME} ALL
-    COMMAND ${DOTNET_EXECUTABLE} pack -c ${DEFAULT_CS_CONFIG} "${CMAKE_CURRENT_SOURCE_DIR}/../../../Emgu.CV.Models/Emgu.CV.Models.NetStandard/Emgu.CV.Models.NetStandard.csproj" -p:NuspecFile="${CMAKE_CURRENT_SOURCE_DIR}/Package.nuspec" -o "${CMAKE_CURRENT_SOURCE_DIR}/../"
-    WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
-    )
+
+  BUILD_NUGET_PACKAGE(
+    ${PROJECT_NAME} 
+	"${CMAKE_CURRENT_SOURCE_DIR}/../../../Emgu.CV.Models/Emgu.CV.Models.NetStandard/Emgu.CV.Models.NetStandard.csproj"  #csproj_file 
+	"${CMAKE_CURRENT_SOURCE_DIR}/Package.nuspec" #nuspec_file 
+	"${CMAKE_CURRENT_SOURCE_DIR}/../" #output_dir 
+	"${CMAKE_CURRENT_SOURCE_DIR}" #working_dir
+	) 
   
   ADD_DEPENDENCIES(${PROJECT_NAME} Emgu.CV.Models.NetStandard)
   ADD_DEPENDENCIES(${PROJECT_NAME} Emgu.CV.Models.IOS)