What is the version of Ubuntu? and did you follow the procedure exactly like in the guide? (see below)

sudo apt -y update && sudo apt -y install build-essential libssl-dev libdb++-dev libboost-all-dev libcrypto++-dev libqrencode-dev libminiupnpc-dev libgmp-dev libgmp3-dev autoconf autogen automake libtool autotools-dev pkg-config bsdmainutils software-properties-common libzmq3-dev libminiupnpc-dev libssl-dev libevent-dev

sudo add-apt-repository ppa:bitcoin/bitcoin
sudo apt-get update
sudo apt-get install libdb4.8-dev libdb4.8++-dev -y

git clone https://github.com/sucremoneda/SucreCore.git

git clone https://github.com/dashpay/dash.git  # (to fix a bug in secp256k1)

rm -rf ~/SucreCore/src/secp256k1
cp -r ~/dash/src/secp256k1 ~/SucreCore/src/secp256k1

cd SucreCore
find . -name "*.sh" -exec sudo chmod 755 {} \;
./autogen.sh
./configure # or ./configure --without-gui
make