OSB-6: Fix CMake macro

CMake/NPMInstall.cmake

@@ -69,13 +69,13 @@ function(npm_install NPM_PACKAGE_SPECIFICATION)
 	get_filename_component(NPM_BINARY_DIR "${CMAKE_CURRENT_BINARY_DIR}" REALPATH)
 	
 	add_custom_target(copy_src_public ALL SOURCES "public" "src" COMMENT "Copying src and public directory into build directory")
-	add_custom_target(download_npm_dependencies ALL SOURCES "node_modules" "package-lock.json" DEPENDS copy_src_public COMMENT "Attempt downloading of required npm dependencies")
+	add_custom_target(download_npm_dependencies ALL SOURCES "node_modules" "package-lock.json" DEPENDS copy_src_public package_json COMMENT "Attempt downloading of required npm dependencies")
 	add_custom_target(packing_javascript_files ALL SOURCES build COMMENT "Attempt packing of javascript files")
 	add_custom_target(start_development_server_${PACKAGE_NAME} SOURCES "node_modules" "package-lock.json" COMMENT "Start start_development_server for ${PACKAGE_NAME}")
 	
 	add_custom_command(
-	OUTPUT "package.json"
-	COMMAND ${CMAKE_COMMAND} -E copy_if_different
+	OUTPUT package_json
+ 	COMMAND ${CMAKE_COMMAND} -E copy_if_different
       ${JSON_PACKAGE_SPECIFICATION} ${NPM_BINARY_DIR}/package.json
 	COMMENT "Copying package.json")