之前是好的，不知道问题出现在哪里？请高手指导。按道理这个文件是标识文件，系统会自动生成。.stamp_target_installed
报错信息如下：
>>> rkwifibt 1.0.0 Installing to target
mkdir -p /home/kang/RK/RK3308/buildroot/output/rockchip_rk3308_release/target/usr/lib/modules
mkdir -p /home/kang/RK/RK3308/buildroot/output/rockchip_rk3308_release/target/system/etc/firmware
/usr/bin/install -D -m 0644 /home/kang/RK/RK3308/buildroot/output/rockchip_rk3308_release/build/rkwifibt-1.0.0/firmware/broadcom/AW-CM256/wifi/* /home/kang/RK/RK3308/buildroot/output/rockchip_rk3308_release/target/system/etc/firmware
/usr/bin/install -D -m 0644 /home/kang/RK/RK3308/buildroot/output/rockchip_rk3308_release/build/rkwifibt-1.0.0/firmware/broadcom/AW-CM256/bt/* /home/kang/RK/RK3308/buildroot/output/rockchip_rk3308_release/target/system/etc/firmware
/usr/bin/install -D -m 0755 /home/kang/RK/RK3308/buildroot/output/rockchip_rk3308_release/build/rkwifibt-1.0.0/brcm_tools/brcm_patchram_plus1 /home/kang/RK/RK3308/buildroot/output/rockchip_rk3308_release/target/usr/bin/brcm_patchram_plus1
/usr/bin/install -D -m 0755 /home/kang/RK/RK3308/buildroot/output/rockchip_rk3308_release/build/rkwifibt-1.0.0/brcm_tools/dhd_priv /home/kang/RK/RK3308/buildroot/output/rockchip_rk3308_release/target/usr/bin/dhd_priv
sed -i 's/MODULE_PATH//usr/lib/modules/bcmdhd.ko/g' /home/kang/RK/RK3308/buildroot/output/rockchip_rk3308_release/build/rkwifibt-1.0.0/S66load_wifi_modules
/usr/bin/install -D -m 0755 /home/kang/RK/RK3308/buildroot/output/rockchip_rk3308_release/build/rkwifibt-1.0.0/S66load_wifi_modules /home/kang/RK/RK3308/buildroot/output/rockchip_rk3308_release/target/etc/init.d
sed -i 's/BTFIRMWARE_PATH//system/etc/firmware/BCM4345C0.hcd/g' /home/kang/RK/RK3308/buildroot/output/rockchip_rk3308_release/build/rkwifibt-1.0.0/bt_load_broadcom_firmware
sed -i 's/BT_TTY_DEV//dev/ttyS4/g' /home/kang/RK/RK3308/buildroot/output/rockchip_rk3308_release/build/rkwifibt-1.0.0/bt_load_broadcom_firmware
/usr/bin/install -D -m 0755 /home/kang/RK/RK3308/buildroot/output/rockchip_rk3308_release/build/rkwifibt-1.0.0/bt_load_broadcom_firmware /home/kang/RK/RK3308/buildroot/output/rockchip_rk3308_release/target/usr/bin/bt_load_broadcom_firmware
/usr/bin/install -D -m 0755 /home/kang/RK/RK3308/buildroot/output/rockchip_rk3308_release/build/rkwifibt-1.0.0/bin/arm64/* /home/kang/RK/RK3308/buildroot/output/rockchip_rk3308_release/target/usr/bin/
/usr/bin/install -D -m 0755 /home/kang/RK/RK3308/buildroot/output/rockchip_rk3308_release/build/rkwifibt-1.0.0/wpa_supplicant.conf /home/kang/RK/RK3308/buildroot/output/rockchip_rk3308_release/target/etc
/usr/bin/install -D -m 0755 /home/kang/RK/RK3308/buildroot/output/rockchip_rk3308_release/build/rkwifibt-1.0.0/wifi_start.sh /home/kang/RK/RK3308/buildroot/output/rockchip_rk3308_release/target/usr/bin
rm -rf /home/kang/RK/RK3308/buildroot/output/rockchip_rk3308_release/target/usr/bin/bt_PCBa_test rm -rf /home/kang/RK/RK3308/buildroot/output/rockchip_rk3308_release/target/usr/bin/bt_init.sh
cp -r /home/kang/RK/RK3308/buildroot/output/rockchip_rk3308_release/target/usr/bin/bt_load_broadcom_firmware /home/kang/RK/RK3308/buildroot/output/rockchip_rk3308_release/target/usr/bin/bt_pcba_test
cp -r /home/kang/RK/RK3308/buildroot/output/rockchip_rk3308_release/target/usr/bin/bt_load_broadcom_firmware /home/kang/RK/RK3308/buildroot/output/rockchip_rk3308_release/target/usr/bin/bt_init.sh
/bin/sed -i -e "/load wifi modules/a\ insmod /system/lib/modules/cywdhd.ko"
/bin/sed: no input files
package/pkg-generic.mk:328: recipe for target '/home/kang/RK/RK3308/buildroot/output/rockchip_rk3308_release/build/rkwifibt-1.0.0/.stamp_target_installed' failed
make[1]: *** [/home/kang/RK/RK3308/buildroot/output/rockchip_rk3308_release/build/rkwifibt-1.0.0/.stamp_target_installed] Error 4
/home/kang/RK/RK3308/buildroot/output/rockchip_rk3308_release/Makefile:16: recipe for target '_all' failed
make: *** [_all] Error 2
Command exited with non-zero status 1
you take 2:48:55 to build builroot
====Build buildroot failed!====
