Fetcher failure

[ananda91]

Got the following error when I tried running bitbake optee-image

NOTE: Preparing RunQueue
NOTE: Executing SetScene Tasks
NOTE: Executing RunQueue Tasks
WARNING: Failed to fetch URL ftp://ftp.debian.org/debian/pool/main/n/netbase/netbase_5.3.tar.xz, attempting MIRRORS if available
WARNING: Failed to fetch URL http://distfiles.gentoo.org/distfiles/coreutils-8.24-man.tar.xz;name=manpages, attempting MIRRORS if available
WARNING: Failed to fetch URL git://github.com/linaro-swg/linux.git;branch=optee, attempting MIRRORS if available
ERROR: Fetcher failure: Unable to find revision a11f5a881d7f891ac4c12c45b76895d4d48f93e8 in branch optee even from upstream
ERROR: Function failed: Fetcher failure for URL: 'git://github.com/linaro-swg/linux.git;branch=optee'. Unable to fetch URL from any source.
ERROR: Logfile of failure stored in: /home/s1/Documents/oe-optee/build/tmp-glibc/work/qemu_optee32-oe-linux-gnueabi/linux-optee/4.5+gitAUTOINC+a11f5a881d-r0/temp/log.do_fetch.5121
ERROR: Task 45 (/home/s1/Documents/oe-optee/openembedded-core/../meta-optee/recipes-kernel/linux/linux-optee_git.bb, do_fetch) failed with exit code '1'
NOTE: Tasks Summary: Attempted 1130 tasks of which 404 didn't need to be rerun and 1 failed.
Waiting for 0 running tasks to finish:

Summary: 1 task failed:
/home/s1/Documents/oe-optee/openembedded-core/../meta-optee/recipes-kernel/linux/linux-optee_git.bb, do_fetch
Summary: There were 3 WARNING messages shown.
Summary: There were 2 ERROR messages shown, returning a non-zero exit code.

Note: I ran apt-get update and upgrade prior to running bitbake.
Can someone help me understand where it is going wrong?

[vchong]

This isn't maintained anymore. Please use https://layers.openembedded.org/layerindex/branch/master/layer/meta-optee.

[vchong]

Actually, you can maybe try changing the branch name in https://github.com/linaro-swg/oe-optee/blob/master/meta-optee/recipes-kernel/linux/linux-optee_git.bb#L9 from optee to OPTEE_V13_LINUX_V4.5.