Initialize USB Supoport for Andriod and Desktop

windows/CMakeLists.txt

@@ -89,9 +89,11 @@ endif()
 
 # Copy the native assets provided by the build.dart from all packages.
 set(NATIVE_ASSETS_DIR "${PROJECT_BUILD_DIR}native_assets/windows/")
-install(DIRECTORY "${NATIVE_ASSETS_DIR}"
-   DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
-   COMPONENT Runtime)
+if(EXISTS "${NATIVE_ASSETS_DIR}")
+  install(DIRECTORY "${NATIVE_ASSETS_DIR}"
+    DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+    COMPONENT Runtime)
+endif()
 
 # Fully re-copy the assets directory on each build to avoid having stale files
 # from a previous install.

windows/flutter/generated_plugins.cmake

@@ -9,6 +9,7 @@ list(APPEND FLUTTER_PLUGIN_LIST
 )
 
 list(APPEND FLUTTER_FFI_PLUGIN_LIST
+  flserial
   flutter_local_notifications_windows
 )