opt: build the rust sdk while running the flutter program

scripts/build_sdk.sh

@@ -3,4 +3,14 @@
 echo 'Start building rust sdk'
 rustup show
 
-cargo make desktop
+#Env check
+#1. rustc --version will be the same as cargo --version
+#2. override the toolchain if the current toolchain not equal to the rust-toolchain file specified.
+#    rustup override set nightly-2021-04-24
+#3. Check your cargo env using the same source by: which cargo
+#   1. ~/.bash_profile,
+#   2. ~/.bashrc
+#   3. ~/.profile
+#   4. ~/.zshrc
+cargo make desktop
+

scripts/makefile/desktop.toml

@@ -16,6 +16,7 @@ condition = { env_true = ["RELEASE"] }
 env = { DESKTOP_TARGET = "x86_64-apple-darwin" }
 private = true
 run_task = "desktop-build"
+
 [tasks.desktop-build]
 category = "Build"
 condition = { platforms = ["mac"], env_true = ["DEV"] }