embedded linux - Yocto Jethro: no package provider for gdbserver -

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i using freescale.github.io freescale community bsp.

in local.conf, machine ?? = "wandboard", have added extra_image_features += "tools-debug"

this add gdb, gdbserver , other tools rootfs. 

summary = "debugging tools" license = "mit"  inherit packagegroup  pr = "r3"  mtrace = "" mtrace_libc-glibc = "libc-mtrace"  rdepends_${pn} = "\     gdb \     gdbserver \     strace \     ${mtrace} \     "

however, got error bitbake cannot find pn gdbserver.

computing transaction...error: can't install packagegroup-core-tools-debug-1.0-r3@all: no package provides gdbserver

is gdbserver removed bsp? why removed? if not, locate gdbserver?

try rebuilding gdb, there's rare bug in gdb makefiles means appears not build gdbserver. clean , force rebuild:

bitbake gdb -cclean ; bitbake gdb -c unpack

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