【openwrt】/usr/lib/lua/luci/dispatcher.lua:569: bad argument #1 to 'pairs'解决办法

【openwrt】/usr/lib/lua/luci/dispatcher.lua:569: bad argument #1 to 'pairs'解决办法

刚才想安装webdav，登陆后台发现错误：

/usr/lib/lua/luci/dispatcher.lua:569: bad argument #1 to 'pairs' (table expected, got nil)
stack traceback:
[C]: in function 'pairs'
/usr/lib/lua/luci/dispatcher.lua:569: in function 'createtree'
/usr/lib/lua/luci/dispatcher.lua:238: in function 'dispatch'
/usr/lib/lua/luci/dispatcher.lua:121: in function [/usr/lib/lua/luci/dispatcher.lua:120

不知为何

解决办法：

ssh连接执行

rm -r /tmp/luci-indexcache