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Building Nethermind

IDE (optional)

SDKs

To build Nethermind 1.9.* releases you will need .NET SDK 3.1. You can download it here (make sure you select correct platform and distribution):

{% embed url="https://dotnet.microsoft.com/download" caption=".NET SDK for Linux, macOS, Windows" %}

For Nethermind 1.10.* releases you are going to need .NET SDK 5.0 that can be downloaded from the url above.

Linux

{% tabs %} {% tab title="Linux (Ubuntu 18.04+/Debian 10)" %}

sudo apt-get update && sudo apt-get install libsnappy-dev libc6-dev libc6

{% endtab %}

{% tab title="Linux (Ubuntu 16.04)" %}

sudo apt-get update && sudo apt-get install libsnappy-dev libc6-dev libc6 && \
sudo add-apt-repository ppa:ubuntu-toolchain-r/test && \
sudo apt-get update && \
sudo apt-get install gcc-6 g++-6 && \
sudo apt install libzstd1

{% endtab %}

{% tab title="Linux (CentOS 8)" %} sudo yum install -y glibc-devel &&
sudo yum install -y bzip2-devel &&
sudo yum install -y libzstd &&
sudo ln -s find /usr/lib64/ -type f -name "libbz2.so.1*" /usr/lib64/libbz2.so.1.0 &&
sudo ln -s find /usr/lib64/ -type f -name "libsnappy.so.1*" /usr/lib64/libsnappy.so {% endtab %}

{% tab title="Linux (Fedora 31)" %} sudo yum install -y glibc-devel &&
sudo yum install -y snappy &&
sudo yum install -y libzstd &&
sudo ln -s find /usr/lib64/ -type f -name "libbz2.so.1*" /usr/lib64/libbz2.so.1.0 &&
sudo ln -s find /usr/lib64/ -type f -name "libsnappy.so.1*" /usr/lib64/libsnappy.so {% endtab %} {% endtabs %}

MacOS

brew install gmp snappy lz4 zstd

Windows

You may need to install https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads

All Platforms

{% hint style="warning" %} If dotnet command is not found then probably you forgot to install SDK (see instructions above) {% endhint %}

{% hint style="info" %} On Linux distributions we suggest that at this stage you start screen so you can go back to session with screen -rd command later on {% endhint %}

Clone the Nethermind repository and its submodules, then build Nethermind in Release or Debug mode.

git clone https://github.com/NethermindEth/nethermind.git --recursive
cd nethermind/src/Nethermind
dotnet build Nethermind.sln -c Release

Launch goerli testnet for quick sync and testing

cd Nethermind.Runner
dotnet run --no-build -c Release -- --config goerli

You can confirm the latest block of the Goerli tetsnet here:

{% embed url="https://blockscout.com/eth/goerli/" %}

or to run Ethereum Mainnet:

cd Nethermind.Runner
dotnet run --no-build -c Release -- --config mainnet

Potential Issues

If you have some previous pre-release versions of .NET Core installed they may cause conflicts. Your case might be quite unique so best to search for help online.