[BUG] - Fresh build of 1.14.1 causes Could not resolve dependencies exception

[sionsmith]

Internal/Exernal
Internal if an IOHK staff member.
External otherwise.

Summary
A clean install of 1.14.1 causes Could not resolve dependencies exception

Steps to reproduce
Steps to reproduce the behavior:

1. On a branch new AWS Amazon Linux 2: git clone https://github.com/input-output-hk/cardano-node.git
2. git checkout tags/1.14.1
3. cabal install cardano-node cardano-cli --installdir="$HOME/.local/bin"
4. See error

Expected behavior
A fresh build with no errors.

System info (please complete the following information):

• OS: Amazon Linux 2
• Version ami-032598fcc7e9d1c7a
• Node version: 1.14.1

Screenshots and attachments
Exception:

[root@ip-10-20-1-115 cardano-node]# cabal install cardano-node cardano-cli --installdir="$HOME/.local/bin"
cabal: Could not resolve dependencies:
[__0] next goal: cardano-crypto-class (user goal)
[__0] rejecting: cardano-crypto-class-2.0.0 (conflict: pkg-config package
libsodium-any, not found in the pkg-config database)
[__0] fail (backjumping, conflict set: cardano-crypto-class)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: cardano-crypto-class

Additional context
Add any other context about the problem here.

[matiwinnetou]

Isn't something which is solved by installing additional library, which they mention? Quote:

Dependencies:
libsodum
libsodium-dev
For ease of use create a cabal.project.local at the toplevel with:

package cardano-crypto-praos
  flags: -external-libsodium-vrf
There are two choices for building cardano-crypto-praos, selected via a cabal flag external-libsodium-vrf:

+external-libsodium-vrf Which requires a special fork of libsodium with the VRF code to be installed on the system
-external-libsodium-vrf Which uses a bundled version of the VRF C code and uses the vanilla system libsodium The second option is currently only suitable for development -- but not deployment -- because it uses the libsodium C code in an unsupported configuration

[kevinhammond]

Yes, I found that installing libsodium-dev at the system level resolved this on Ubuntu (try snap on AWS). The documentation could be improved.

[sionsmith]

Ok cool, thanks fo the update. Took me a while to collect all the information needed to get the build to succeed. I have updated the documentation for Amazon Linux and created a PR: input-output-hk/cardano-tutorials#221

[ianoble]

@sionsmith Even after following the changes you made in the docs, it's still not letting me install v1.14.x. The cardano-crypto-class dependency still exists.

[banescusebi]

@sionsmith Even after following the changes you made in the docs, it's still not letting me install v1.14.x. The cardano-crypto-class dependency still exists.

Same here. I still get the error on AWS after following the tutorial PR: input-output-hk/cardano-tutorials#221

The problem is that when running sudo yum install libsodium-devel, I get the error:

No package libsodium-dev available.

Needed to install libsodium like so:

git clone https://github.com/input-output-hk/libsodium
cd libsodium
git checkout 66f017f1
./autogen.sh
./configure
make
sudo make install

export LD_LIBRARY_PATH="/usr/local/lib:$LD_LIBRARY_PATH"
export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig

Afterwards cabal install cardano-node cardano-cli worked

[ianoble]

Well that sort of worked. I got another error though:

<command line>: can't load .so/.DLL for: /home/ec2-user/cardano-node/dist-newstyle
/build/x86_64-linux/ghc-8.6.5/cardano-crypto-class-2.0.0/build/libHScardano-crypto
-class-2.0.0-inplace-ghc8.6.5.so (libsodium.so.23: cannot open shared object file:
 No such file or directory)

And then when running script:

cabal: Failed to build byron-spec-ledger-0.1.0.0 (which is required by
exe:cardano-node from cardano-node-1.14.2).

[erikd]

@ianoble Did you apt install libsodium libsodium-dev ?

[sionsmith]

Hi @ianoble

As things stand there are still changes happening to the build / release process its becoming harder and harder to get up to date build instructions. I am using Packer and Ansibe to build and configure my AMI. I have pushed the role here:
https://github.com/osodevops/ansible-role-cardano-node

Also found on the Ansible Galaxy:
https://galaxy.ansible.com/sionsmith/cardano_node

[erikd]

The problem is that this code is still in a state of heavy development and build instructions that work today can be invalidated tomorrow. While things are still in such a state of flux, it is inadvisable to depend on anything much more than cabal build.