I build the AGL image for x86 by forllowing the AGL Document, but meet error at:

time bitbake agl-demo-platform

Below is the log,

Parsing recipes: 100% |#####################################################################################################################################################################| Time: 0:01:55
Parsing of 2932 .bb files complete (0 cached, 2932 parsed). 4423 targets, 274 skipped, 6 masked, 0 errors.
NOTE: Resolving any missing task queue dependencies

Build Configuration:
BB_VERSION = "1.46.0"
BUILD_SYS = "x86_64-linux"
NATIVELSBSTRING = "ubuntu-20.04"
TARGET_SYS = "x86_64-agl-linux"
MACHINE = "qemux86-64"
DISTRO = "poky-agl"
DISTRO_VERSION = "12.1.1"
TUNE_FEATURES = "m64 corei7"
TARGET_FPU = ""
meta-pipewire = "HEAD:e1a973f86e60615466b05c7a41d4331f0129e43d"
meta-security = "HEAD:b76698c788cb8ca632077a972031899ef15025d6"
meta-perl = "HEAD:ab9fca485e13f6f2f9761e1d2810f87c2e4f060a"
meta-app-framework = "HEAD:e1a973f86e60615466b05c7a41d4331f0129e43d"
meta-iot-cloud = "HEAD:5431f91969087d631972d73cd03b16eed0a61987"
meta-qt5 = "HEAD:b4d24d70aca75791902df5cd59a4f4a54aa4a125"
meta-python2 = "HEAD:b901080cf57d9a7f5476ab4d96e56c30db8170a8"
meta-agl-demo = "HEAD:12ad591d3038db609db5290d8bbe809a34c743de"
meta-networking
meta-python
meta-filesystems
meta-oe = "HEAD:ab9fca485e13f6f2f9761e1d2810f87c2e4f060a"
meta-agl-core
meta-agl-core-test
meta-agl-bsp = "HEAD:e1a973f86e60615466b05c7a41d4331f0129e43d"
meta
meta-poky = "HEAD:bba323389749ec3e306509f8fb12649f031be152"

NOTE: Fetching uninative binary shim http://downloads.yoctoproject.org/releases/uninative/3.4/x86_64-nativesdk-libc.tar.xz;sha256sum=126f4f7f6f21084ee140dac3eb4c536b963837826b7c38599db0b512c3377ba2 (will check PREMIRRORS first)
WARNING: Failed to fetch URL http://downloads.yoctoproject.org/releases/uninative/3.4/x86_64-nativesdk-libc.tar.xz;sha256sum=126f4f7f6f21084ee140dac3eb4c536b963837826b7c38599db0b512c3377ba2, attempting MIRRORS if available
ERROR: Fetcher failure for URL: 'http://downloads.yoctoproject.org/releases/uninative/3.4/x86_64-nativesdk-libc.tar.xz'. The fetch command returned success for url http://downloads.yoctoproject.org/releases/uninative/3.4/x86_64-nativesdk-libc.tar.xz but $HOME/downloads//uninative/126f4f7f6f21084ee140dac3eb4c536b963837826b7c38599db0b512c3377ba2/x86_64-nativesdk-libc.tar.xz doesn't exist?!
WARNING: Disabling uninative as unable to fetch uninative tarball: Fetcher failure for URL: 'http://downloads.yoctoproject.org/releases/uninative/3.4/x86_64-nativesdk-libc.tar.xz;sha256sum=126f4f7f6f21084ee140dac3eb4c536b963837826b7c38599db0b512c3377ba2'. Unable to fetch URL from any source.
WARNING: To build your own uninative loader, please bitbake uninative-tarball and set UNINATIVE_TARBALL appropriately.
Initialising tasks: 100% |##################################################################################################################################################################| Time: 0:00:06
Sstate summary: Wanted 3960 Found 0 Missed 3960 Current 0 (0% match, 0% complete)
NOTE: Executing Tasks
WARNING: quilt-native-0.66-r0 do_fetch: Failed to fetch URL https://download.savannah.gnu.org/releases/quilt/quilt-0.66.tar.gz, attempting MIRRORS if available
ERROR: quilt-native-0.66-r0 do_fetch: Fetcher failure for URL: 'https://download.savannah.gnu.org/releases/quilt/quilt-0.66.tar.gz'. The fetch command returned success for url https://download.savannah.gnu.org/releases/quilt/quilt-0.66.tar.gz but $HOME/downloads/quilt-0.66.tar.gz doesn't exist?!
ERROR: quilt-native-0.66-r0 do_fetch: Bitbake Fetcher Error: FetchError('Unable to fetch URL from any source.', 'https://download.savannah.gnu.org/releases/quilt/quilt-0.66.tar.gz')
ERROR: Logfile of failure stored in: /home/wangjh/work/agl/lamprey2/qemux86-64/tmp/work/x86_64-linux/quilt-native/0.66-r0/temp/log.do_fetch.45217
ERROR: Task (/home/wangjh/work/agl/lamprey2/external/poky/meta/recipes-devtools/quilt/quilt-native_0.66.bb:do_fetch) failed with exit code '1'
WARNING: gnu-config-native-20200117+gitAUTOINC+5256817ace-r0 do_fetch: Failed to fetch URL git://git.savannah.gnu.org/config.git;branch=master, attempting MIRRORS if available
ERROR: gnu-config-native-20200117+gitAUTOINC+5256817ace-r0 do_fetch: Fetcher failure: Fetch command export PSEUDO_DISABLED=1; export DBUS_SESSION_BUS_ADDRESS="unix:path=/run/user/1000/bus"; export SSH_AGENT_PID="1727"; export SSH_AUTH_SOCK="/run/user/1000/keyring/ssh"; export all_proxy="socks://192.168.1.112:7890/"; export ALL_PROXY="socks://192.168.1.112:7890/"; export no_proxy="localhost,127.0.0.0/8,::1"; export NO_PROXY="localhost,127.0.0.0/8,::1"; export ftp_proxy="http://192.168.1.112:7890/"; export FTP_PROXY="http://192.168.1.112:7890/"; export https_proxy="http://192.168.1.112:7890/"; export HTTPS_PROXY="http://192.168.1.112:7890/"; export http_proxy="http://192.168.1.112:7890/"; export HTTP_PROXY="http://192.168.1.112:7890/"; export PATH="/home/wangjh/work/agl/lamprey2/external/poky/scripts/native-intercept:/home/wangjh/work/agl/lamprey2/qemux86-64/tmp/work/x86_64-linux/gnu-config-native/20200117+gitAUTOINC+5256817ace-r0/recipe-sysroot-native/usr/bin/tar-native:/home/wangjh/work/agl/lamprey2/external/poky/scripts:/home/wangjh/work/agl/lamprey2/qemux86-64/tmp/work/x86_64-linux/gnu-config-native/20200117+gitAUTOINC+5256817ace-r0/recipe-sysroot-native/usr/bin/x86_64-linux:/home/wangjh/work/agl/lamprey2/qemux86-64/tmp/work/x86_64-linux/gnu-config-native/20200117+gitAUTOINC+5256817ace-r0/recipe-sysroot-native/usr/bin:/home/wangjh/work/agl/lamprey2/qemux86-64/tmp/work/x86_64-linux/gnu-config-native/20200117+gitAUTOINC+5256817ace-r0/recipe-sysroot-native/usr/sbin:/home/wangjh/work/agl/lamprey2/qemux86-64/tmp/work/x86_64-linux/gnu-config-native/20200117+gitAUTOINC+5256817ace-r0/recipe-sysroot-native/usr/bin:/home/wangjh/work/agl/lamprey2/qemux86-64/tmp/work/x86_64-linux/gnu-config-native/20200117+gitAUTOINC+5256817ace-r0/recipe-sysroot-native/sbin:/home/wangjh/work/agl/lamprey2/qemux86-64/tmp/work/x86_64-linux/gnu-config-native/20200117+gitAUTOINC+5256817ace-r0/recipe-sysroot-native/bin:/home/wangjh/work/agl/lamprey2/external/poky/bitbake/bin:/home/wangjh/work/agl/lamprey2/qemux86-64/tmp/hosttools"; export HOME="/home/wangjh"; git -c core.fsyncobjectfiles=0 remote
ERROR: gnu-config-native-20200117+gitAUTOINC+5256817ace-r0 do_fetch: Bitbake Fetcher Error: FetchError('Unable to fetch URL from any source.', 'git://git.savannah.gnu.org/config.git;branch=master')
ERROR: Logfile of failure stored in: /home/wangjh/work/agl/lamprey2/qemux86-64/tmp/work/x86_64-linux/gnu-config-native/20200117+gitAUTOINC+5256817ace-r0/temp/log.do_fetch.45218
ERROR: Task (virtual:native:/home/wangjh/work/agl/lamprey2/external/poky/meta/recipes-devtools/gnu-config/gnu-config_git.bb:do_fetch) failed with exit code '1'
NOTE: Tasks Summary: Attempted 2 tasks of which 0 didn't need to be rerun and 2 failed.

Summary: 2 tasks failed:
/home/wangjh/work/agl/lamprey2/external/poky/meta/recipes-devtools/quilt/quilt-native_0.66.bb:do_fetch
virtual:native:/home/wangjh/work/agl/lamprey2/external/poky/meta/recipes-devtools/gnu-config/gnu-config_git.bb:do_fetch
Summary: There were 5 WARNING messages shown.
Summary: There were 5 ERROR messages shown, returning a non-zero exit code.

real 7m40.410s
user 0m1.008s
sys 0m0.319s