run 后出现这种提示，啥意思？

charliema

target sim
load
一切正常，但run后提示：
.........
GDB-ARMulator: applet not found
pid 8: failed 256
Command: /bin/expand /etc/ramfs.img /dev/ram0
Command: mount -t proc proc /proc
Command: mount -t ext2 /dev/ram0 /var
Command: mkdir /var/tmp
tmp: applet not found
pid 12: failed 256
Command: mkdir /var/log
log: applet not found
pid 13: failed 256
Command: mkdir /var/run
run: applet not found
pid 14: failed 256
Command: mkdir /var/lock
lock: applet not found
pid 15: failed 256
Command: cat /etc/motd
motd: applet not found
pid 16: failed 256
Execution Finished, Exiting
init: Booting to single user mode

Sash command shell (version 1.1.1)
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请问这是啥意思？applet not found什么意思阿？