Error openwrt own bild for tl-wr740n-v5 lede-imagebuilder-17.01.7

hello, i try to bild my first own bild with curl for tl-wr740n-v5 with openwrt lede 17.01.7 and have error

i have LUBUNTU

i have made:

sudo apt-get install subversion build-essential libncurses5-dev zlib1g-dev gawk git ccache gettext libssl-dev xsltproc zip

i have download: https://archive.openwrt.org/releases/17.01.7/targets/ar71xx/generic/lede-imagebuilder-17.01.7-ar71xx-generic.Linux-x86_64.tar.xz

i have make

git clone https://git.lede-project.org/source.git

then enter directory /source

then coming soon


what have i do wrong and how to fix the errors?