Errors building Ubuntu Touch

No private recovery resources for TARGET_DEVICE sirius
No recovery.fstab for TARGET_DEVICE sirius
build/core/tasks/kernel.mk:103: ***************************************************************
build/core/tasks/kernel.mk:104: * Using prebuilt kernel binary instead of source              *
build/core/tasks/kernel.mk:105: * THIS IS DEPRECATED, AND WILL BE DISCONTINUED                *
build/core/tasks/kernel.mk:106: * Please configure your device to download the kernel         *
build/core/tasks/kernel.mk:107: * source repository to kernel/sony/sirius
build/core/tasks/kernel.mk:108: * See http://wiki.cyanogenmod.org/w/Doc:_integrated_kernel_building
build/core/tasks/kernel.mk:109: * for more information                                        *
build/core/tasks/kernel.mk:110: ***************************************************************
build/core/tasks/kernel.mk:272: warning: overriding recipe for target '/media/khophi/Data/phablet/out/target/product/sirius/kernel'
build/core/Makefile:32: warning: ignoring old recipe for target '/media/khophi/Data/phablet/out/target/product/sirius/kernel'

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Target Ubuntu Touch ram disk: /media/khophi/Data/phablet/out/target/product/sirius/ramdisk.img
build/tools/generate-notice-files.py  /media/khophi/Data/phablet/out/target/product/sirius/obj/NOTICE.txt  /media/khophi/Data/phablet/out/target/product/sirius/obj/NOTICE.html "Notices for files contained in the filesystem images in this directory:" /media/khophi/Data/phablet/out/target/product/sirius/obj/NOTICE_FILES/src
Combining NOTICE files into HTML
Combining NOTICE files into text
Downloading ubuntu-touch-generic-initrd version 0.94
14610 blocks
----- Making recovery image ------
Target boot image for Ubuntu Touch: /media/khophi/Data/phablet/out/target/product/sirius/boot.img
Copying baseline ramdisk...
usage: mkbootimg
       --kernel <filename>
       --ramdisk <filename>
       [ --second <2ndbootloader-filename> ]
       [ --cmdline <kernel-commandline> ]
       [ --board <boardname> ]
       [ --base <address> ]
       [ --pagesize <pagesize> ]
       -o|--output <filename>
build/core/Makefile:489: recipe for target '/media/khophi/Data/phablet/out/target/product/sirius/boot.img' failed
make: *** [/media/khophi/Data/phablet/out/target/product/sirius/boot.img] Error 1
make: *** Waiting for unfinished jobs....
Modifying ramdisk contents...
mkdir -p /media/khophi/Data/phablet/out/target/product/sirius/recovery/root/system/bin
Modifying default.prop
sed -i 's/ro.build.date.utc=.*/ro.build.date.utc=0/g' /media/khophi/Data/phablet/out/target/product/sirius/recovery/root/default.prop
sed -i 's/ro.adb.secure=1//g' /media/khophi/Data/phablet/out/target/product/sirius/recovery/root/default.prop
----- Made recovery filesystem --------/media/khophi/Data/phablet/out/target/product/sirius/recovery/root