KLC add free

Signed-off-by: xiehuc <xiehuc@gmail.com>
update try resolve to find more solve

try resolve尽量的去寻找依赖.一直到找不到为止.
优化输出,更加直观

Signed-off-by: xiehuc <xiehuc@gmail.com>

Signed-off-by: xiehuc <xiehuc@gmail.com>