Hi Friends,
I am new to this technology, please let me know if i missed any detail that is required to make my query more understandable . I am trying standard test on target device using TEST_TARGET = "simpleremote" ,
i have followed following steps on the given link - https://wiki.yoctoproject.org/wiki/BSP_Test_Plan
I am building core-image-weston on imx6 device.
I am building "core-image-weston" on "imx6" I ran command -- bitbake core-image-weston -c testimage
I got following logs---

NOTE: ----------------------------------------------------------------------
NOTE: Ran 61 tests in 438.855s
NOTE: FAILED
NOTE:  (failures=2, errors=1, skipped=16)
ERROR: Error executing a python function in exec_python_func() autogenerated:

The stack trace of python calls that resulted in this exception/failure was:
File: 'exec_python_func() autogenerated', lineno: 2, function: <module>
     0001:
 *** 0002:do_testimage(d)
     0003:
File: '/home/ss/imx6/yocto/OS_Linux_imx6/sources/poky/meta/classes/testimage.bbclass', lineno: 114, function: do_testimage
     0110:    netstat -an
     0111:}
     0112:
     0113:python do_testimage() {
 *** 0114:   testimage_main(d)
     0115:}
     0116:
     0117:addtask testimage
     0118:do_testimage[nostamp] = "1"
File: '/home/ss/imx6/yocto/OS_Linux_imx6/sources/poky/meta/classes/testimage.bbclass', lineno: 320, function: testimage_main
     0316:
     0317:    # Show results (if we have them)
     0318:    if not results:
     0319:        bb.fatal('%s - FAILED - tests were interrupted during execution' % pn, forcelog=True)
 *** 0320:    configuration = get_testimage_configuration(d, 'runtime', machine)
     0321:    results.logDetails(get_testimage_json_result_dir(d),
     0322:                       configuration,
     0323:                       get_testimage_result_id(configuration),
     0324:                       dump_streams=d.getVar('TESTREPORT_FULLLOGS'))
File: '/home/ss/imx6/yocto/OS_Linux_imx6/sources/poky/meta/classes/testimage.bbclass', lineno: 139, function: get_testimage_configuration
     0135:                    'IMAGE_BASENAME': d.getVar("IMAGE_BASENAME"),
     0136:                    'IMAGE_PKGTYPE': d.getVar("IMAGE_PKGTYPE"),
     0137:                    'STARTTIME': d.getVar("DATETIME"),
     0138:                    'HOST_DISTRO': oe.lsb.distro_identifier().replace(' ', '-'),
 *** 0139:                    'LAYERS': get_layers(d.getVar("BBLAYERS"))}
     0140:    return configuration
     0141:get_testimage_configuration[vardepsexclude] = "DATETIME"
     0142:
     0143:def get_testimage_json_result_dir(d):
File: '/home/ss/imx6/yocto/OS_Linux_imx6/sources/poky/meta/lib/oeqa/utils/metadata.py', lineno: 97, function: get_layers
     0093:    """Returns layer information in dict format"""
     0094:    layer_dict = OrderedDict()
     0095:    for layer in layers.split():
     0096:        layer_name = os.path.basename(layer)
 *** 0097:        layer_dict[layer_name] = git_rev_info(layer)
     0098:    return layer_dict
     0099:
     0100:def write_metadata_file(file_path, metadata):
     0101:    """ Writes metadata to a XML file in directory. """
File: '/home/ss/imx6/yocto/OS_Linux_imx6/sources/poky/meta/lib/oeqa/utils/metadata.py', lineno: 84, function: git_rev_info
     0080:    try:
     0081:        repo = Repo(path, search_parent_directories=True)
     0082:    except (InvalidGitRepositoryError, NoSuchPathError):
     0083:        return info
 *** 0084:    info['commit'] = repo.head.commit.hexsha
     0085:    info['commit_count'] = repo.head.commit.count()
     0086:    try:
     0087:        info['branch'] = repo.active_branch.name
     0088:    except TypeError:
File: '/usr/lib/python3/dist-packages/git/refs/symbolic.py', lineno: 197, function: _get_commit
     0193:        """
     0194:        :return:
     0195:            Commit object we point to, works for detached and non-detached
     0196:            SymbolicReferences. The symbolic reference will be dereferenced recursively."""
 *** 0197:        obj = self._get_object()
     0198:        if obj.type == 'tag':
     0199:            obj = obj.object
     0200:        # END dereference tag
     0201:
File: '/usr/lib/python3/dist-packages/git/refs/symbolic.py', lineno: 190, function: _get_object
     0186:            The object our ref currently refers to. Refs can be cached, they will
     0187:            always point to the actual object as it gets re-created on each query"""
    0188:        # have to be dynamic here as we may be a tag which can point to anything
     0189:        # Our path will be resolved to the hexsha which will be used accordingly
 *** 0190:        return Object.new_from_sha(self.repo, hex_to_bin(self.dereference_recursive(self.repo, self.path)))
     0191:
     0192:    def _get_commit(self):
     0193:        """
     0194:        :return:
File: '/usr/lib/python3/dist-packages/git/refs/symbolic.py', lineno: 132, function: dereference_recursive
     0128:        :return: hexsha stored in the reference at the given ref_path, recursively dereferencing all
     0129:            intermediate references as required
     0130:        :param repo: the repository containing the reference at ref_path"""
     0131:        while True:
 *** 0132:            hexsha, ref_path = cls._get_ref_info(repo, ref_path)
     0133:            if hexsha is not None:
     0134:                return hexsha
     0135:        # END recursive dereferencing
     0136:
File: '/usr/lib/python3/dist-packages/git/refs/symbolic.py', lineno: 181, function: _get_ref_info
     0177:    def _get_ref_info(cls, repo, ref_path):
     0178:        """Return: (str(sha), str(target_ref_path)) if available, the sha the file at
     0179:        rela_path points to, or None. target_ref_path is the reference we
     0180:        point to, or None"""
 *** 0181:        return cls._get_ref_info_helper(repo, ref_path)
     0182:
     0183:    def _get_object(self):
     0184:        """
     0185:        :return:
File: '/usr/lib/python3/dist-packages/git/refs/symbolic.py', lineno: 164, function: _get_ref_info_helper
     0160:                break
     0161:            # END for each packed ref
     0162:        # END handle packed refs
     0163:        if tokens is None:
 *** 0164:            raise ValueError("Reference at %r does not exist" % ref_path)
     0165:
     0166:        # is it a reference ?
     0167:        if tokens[0] == 'ref:':
     0168:            return (None, tokens[1])
Exception: ValueError: Reference at 'refs/heads/yocto_imx6_rel' does not exist

DEBUG: Python function do_testimage finished




I tried to resolve the problem but errors, and warming kept increasing. than I found , a testimage.bbclass - http://cgit.openembedded.org/openembedded-core/tree/meta/classes/testimage.bbclass?h=pyro
which had diffrence wrt my testimage.bbclass diffrence was - i
nherit meta_scm
python () {
       if oe.types.boolean(d.getVar("TESTIMAGE_AUTO") or "False"):
            bb.build.addtask("testimage", "do_build", "do_image_complete", d)
}

Later ,
i swap my testimage.bbclass with http://cgit.openembedded.org/openembedded-core/tree/meta/classes/testimage.bbclass?h=pyro
i know that the diffrence may be due to different version but still i tested.
now after running the task -                               bitbake core-image-weston -c testimage
do_testimage task have stopped at 99% , no, I am not getting any log, later i Swaped the earlier testimage.bbclass and still it gets stuck at 99%. I am not getting any logs in both cases ,


may i please get your help to resolve this issue, and cause of error