X3568的编译打包，出现的问题

lam007

source build/envsetup.sh
lunch rk3568_r-userdebug
./build.sh -AUCKu
最后执行
./mkimage.sh
出现如下提示：
请问怎么处理？
create vbmeta.img...
BOARD_AVB_ENABLE is false, use default vbmeta.img
create misc.img.... done.
create uboot.img...
u-boot/trust.img not fount! Please make it from u-boot first!
create loader...
create config.cfg...
[W][2021-11-15T14:59:21+0800][33900] void cmdline::logParams(nsjconf_t *)():250 Process will be UID/EUID=0 in the global user namespace, and will have user root-level access to files
[W][2021-11-15T14:59:21+0800][33900] void cmdline::logParams(nsjconf_t *)():260 Process will be GID/EGID=0 in the global user namespace, and will have group root-level access to files

lam007

u-boot/trust.img not fount! Please make it from u-boot first!
主要是这个问题。另外
x3568的uboot，kernel,android怎么单独编译？

lam007

收到。谢谢！

lam007

这个文件我已经看过。我编译：
./build.sh -U
还是提示trust.img编译不出来。
u-boot/trust.img not fount! Please make it from u-boot first!

lam007

搞清楚了。！