Did the following several times by using downloaded openwrt from May 7th and today (May 14th), same result every time:
Did a fresh install on APU2E4 with openwrt 19.07.2 squashfs (via sysupgrade -n ... or via luci, no difference)
Every time I install luci-app-openvpn or luci-app-ddns it does not want to install, indicating luci-compat was missing or luci-base was already part of.
When installing the luci (opkg install luci) I can install luci-app-openvpn or luci-app-ddns.
=> However after a reboot luci is broken (just /lib/... many errors).
=> It states also to be incompatible versions between luci and the luci-app packages.
After a fresh install, I did
opkg install luci
opkg install luci-base
opkg install luci-compat
to update to the latest (I did not install anything else).
After a reboot, instead of getting the Luci webinterface, I get the following:
/usr/lib/lua/luci/template.lua:97: Failed to execute template 'sysauth'.
A runtime error occurred: /usr/lib/lua/luci/template.lua:97: Failed to execute template 'header'.
A runtime error occurred: /usr/lib/lua/luci/template.lua:97: Failed to execute template 'themes/bootstrap/header'.
A runtime error occurred: [string "/usr/lib/lua/luci/view/themes/bootstrap/hea..."]:20: attempt to call field 'node_childs' (a nil value)
stack traceback:
[string "/usr/lib/lua/luci/view/themes/bootstrap/hea..."]:20: in main chunk
stack traceback:
[C]: in function 'error'
/usr/lib/lua/luci/template.lua:97: in function 'render'
/usr/lib/lua/luci/dispatcher.lua:755: in function 'include'
[string "/usr/lib/lua/luci/view/header.htm"]:3: in main chunk
stack traceback:
[C]: in function 'error'
/usr/lib/lua/luci/template.lua:97: in function 'render'
/usr/lib/lua/luci/dispatcher.lua:755: in function 'include'
[string "/usr/lib/lua/luci/view/sysauth.htm"]:1: in main chunk
stack traceback:
[C]: in function 'error'
/usr/lib/lua/luci/template.lua:97: in function </usr/lib/lua/luci/template.lua:85>
(tail call): ?
(tail call): ?
/usr/lib/lua/luci/dispatcher.lua:979: in function 'dispatch'
/usr/lib/lua/luci/dispatcher.lua:478: in function </usr/lib/lua/luci/dispatcher.lua:477>