[yocto] Error: PATH contains '.' or '', which will break the build, please remove this.

[Elvis Dowson]

Hi,
     I just updated my yocto repos and tried a fresh build.

My bblayers.conf file looks like this:

# LAYER_CONF_VERSION is increased each time build/conf/bblayers.conf
# changes incompatibly
LCONF_VERSION = "4"

BBFILES ?= ""
BBLAYERS ?= " \
  /tool/yocto/poky/meta \
  /tool/yocto/poky/meta-yocto \
  /tool/yocto/meta-openembedded/meta-oe \
  /tool/yocto/meta-xilinx \
  "

And when I run the bitake core-image-minimal;bitbake meta-toolchain  I get the following errors:

$ bitbake core-image-minimal;bitbake meta-toolchain;
Pseudo is not present but is required, building this first before the main build
WARNING: Unable to get checksum for python-numpy SRC_URI entry config.h: file could not be found           | ETA:  00:00:49
WARNING: Unable to get checksum for python-numpy SRC_URI entry numpyconfig.h: file could not be found
WARNING: /tool/yocto/meta-openembedded/meta-oe/recipes-connectivity/networkmanager/networkmanager_0.9.2.0.bb: it is recommended to set SYSTEMD_PACKAGES as <existing-package>-systemd
WARNING: /tool/yocto/poky/meta/recipes-extended/lighttpd/lighttpd_1.4.30.bb: it is recommended to set SYSTEMD_PACKAGES as <existing-package>-systemd
Parsing recipes: 100% |####################################################################################| Time: 00:00:37
Parsing of 1186 .bb files complete (0 cached, 1186 parsed). 1524 targets, 40 skipped, 0 masked, 0 errors.
WARNING: BBPATH references the current directory, either through an empty entry, or a '.'.
	 This is unsafe and means your layer configuration is adding empty elements to BBPATH.
	 Please check your layer.conf files and other BBPATH settings to remove the current working directory references.
ERROR:  OE-core's config sanity checker detected a potential misconfiguration.
    Either fix the cause of this error or at your own risk disable the checker (see sanity.conf).
    Following is the list of potential problems / advisories:

    PATH contains '.' or '', which will break the build, please remove this.
ERROR: Execution of event handler 'check_sanity_eventhandler' failed
ERROR: Command execution failed: Exited with 1

Summary: There were 5 WARNING messages shown.
Summary: There were 3 ERROR messages shown, returning a non-zero exit code.
Pseudo is not present but is required, building this first before the main build
Loading cache: 100% |######################################################################################| ETA:  00:00:00
Loaded 1523 entries from dependency cache.
Parsing recipes: 100% |####################################################################################| Time: 00:00:07
Parsing of 1186 .bb files complete (1184 cached, 2 parsed). 1524 targets, 40 skipped, 0 masked, 0 errors.
WARNING: BBPATH references the current directory, either through an empty entry, or a '.'.
	 This is unsafe and means your layer configuration is adding empty elements to BBPATH.
	 Please check your layer.conf files and other BBPATH settings to remove the current working directory references.
ERROR:  OE-core's config sanity checker detected a potential misconfiguration.
    Either fix the cause of this error or at your own risk disable the checker (see sanity.conf).
    Following is the list of potential problems / advisories:

    PATH contains '.' or '', which will break the build, please remove this.
ERROR: Execution of event handler 'check_sanity_eventhandler' failed
ERROR: Command execution failed: Exited with 1

Summary: There was 1 WARNING message shown.
Summary: There were 3 ERROR messages shown, returning a non-zero exit code.


Best regards,

Elvis Dowson