build native pack of Torchsharp and libtorch for arm64 ubuntu

How to build native pack of Torchsharp and libtorch on arm64 ubuntu 24.04?

sudo apt update
sudo apt install -y git cmake build-essential python3 python3-pip \
libopenblas-dev libomp-dev python3.12-dev python3-venv

wget https://dotnet.microsoft.com/download/dotnet/scripts/v1/dotnet-install.sh
chmod +x dotnet-install.sh
./dotnet-install.sh --channel 8.0
export PATH=$PATH:$HOME/.dotnet

git clone --recursive https://github.com/pytorch/pytorch.git
cd pytorch

sudo apt install python3-venv python3-full
python3 -m venv ~/pytorch-env
source ~/pytorch-env/bin/activate

# === 1. Prepare environment ===
sudo apt update

pip install --upgrade pip setuptools wheel
pip install typing_extensions numpy pyyaml
pip install -r requirements.txt

# === 2. Clone PyTorch and install deps ===
git clone --recursive https://github.com/pytorch/pytorch.git
cd pytorch
git checkout 2.7.1

pip install -r requirements.txt

# Clean any old build
rm -rf build

# === 3. Build LibTorch for ARM64 ===
tmux new -s pytorch-build

python3 setup.py build | tee build.log

#if ssh closed use this for keept it
- If SSH disconnects, reconnect and run
tmux attach -t pytorch-build.

#for detach from tmux
Ctrl + b, then d

#Check logs if needed
tail -f ~/pytorch/build.log

# Generate LibTorch dir include bin,lib,share,...
cd /pytorch/build
cmake --install . --prefix ./install

# back to root
cd /

# === 4. Clone TorchSharp and integrate LibTorch ===
git clone https://github.com/dotnet/TorchSharp.git
cd TorchSharp

# Copy native libs into TorchSharp NativeDependencies
mkdir -p src/NativeDependencies/arm64-linux/libtorch
cp -r /pytorch/build/install/* /TorchSharp/src/Native/NativeDependencies/arm64-linux/libtorch

cd /TorchSharp/src/Native

cmake -DCMAKE_PREFIX_PATH=/TorchSharp/src/Native/NativeDependencies/arm64-linux/libtorch -DCMAKE_BUILD_TYPE=Release

# === 5. link TorchSharp to natively built libtorch ===
how to do that?
how to do that?
I'm stock here!!!!!!!!!

# === 6. Build and pack TorchSharp NuGet ===
dotnet build -c Release
dotnet pack -c Release

I'm stock at step 5 , when going to do step 6, it download libtorch set in
/TorchSharp/src/Redist/libtorch-cpu

and got this error:
build failed with 2 error(s) (0.9s)
collect2 : error : ld returned 1 exit status
/TorchSharp/src/Native/build.proj(40,5): error MSB3073: The command ""/TorchSharp/src/Native/build.sh" --configuration Release --arch arm64 --libtorchpath /TorchSharp/bin/obj/AnyCPU.Release/libtorch-cpu/libtorch-cxx11-abi-shared-with-deps-2.7.1cpu/libtorch/share/cmake/Torch" exited with code 2.

Build failed with 2 error(s) in 4.5s

please help

**Please complete the following information:**
- OS: [arm64 ubuntu 24.04
- Package Type [e.g. torchsharp-cpu-linux, torchsharp-cuda-linux]
- Version [e.g. 0.105.0]