Hey, I'm new to Ros2 and ubuntu, but im following ros2 tutorials, and i'v a problem with colcon. i installed it as instructed but when i try to use $colcon build i get this ERROR:colcon.colconcore.entrypoint:Exception loading extension 'colconcore.environmentvariable.powershellcommand': (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'}) Traceback (most recent call last): File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 120, in loadentrypoints extensiontype = loadentrypoint(entrypoint) File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 166, in loadentrypoint return entrypoint.load() File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2444, in load self.require(args, *kwargs) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2467, in require items = workingset.resolve(reqs, env, installer, extras=self.extras) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 792, in resolve raise VersionConflict(dist, req).withcontext(dependentreq) pkg_resources.ContextualVersionConflict: (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'})

ERROR:colcon.colconcore.entrypoint:Exception loading extension 'colconcore.environmentvariable.defaults': (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'}) Traceback (most recent call last): File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 120, in loadentrypoints extensiontype = loadentrypoint(entrypoint) File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 166, in loadentrypoint return entrypoint.load() File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2444, in load self.require(args, *kwargs) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2467, in require items = workingset.resolve(reqs, env, installer, extras=self.extras) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 792, in resolve raise VersionConflict(dist, req).withcontext(dependentreq) pkgresources.ContextualVersionConflict: (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'})

ERROR:colcon.colconcore.entrypoint:Exception loading extension 'colconcore.environmentvariable.allshells': (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'}) Traceback (most recent call last): File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 120, in loadentrypoints extensiontype = loadentrypoint(entrypoint) File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 166, in loadentrypoint return entrypoint.load() File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2444, in load self.require(args, *kwargs) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2467, in require items = workingset.resolve(reqs, env, installer, extras=self.extras) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 792, in resolve raise VersionConflict(dist, req).withcontext(dependentreq) pkg_resources.ContextualVersionConflict: (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'})

ERROR:colcon.colconcore.entrypoint:Exception loading extension 'colconcore.environmentvariable.defaultexecutor': (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'}) Traceback (most recent call last): File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 120, in loadentrypoints extensiontype = loadentrypoint(entrypoint) File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 166, in loadentrypoint return entrypoint.load() File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2444, in load self.require(args, *kwargs) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2467, in require items = workingset.resolve(reqs, env, installer, extras=self.extras) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 792, in resolve raise VersionConflict(dist, req).withcontext(dependentreq) pkg_resources.ContextualVersionConflict: (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'})

ERROR:colcon.colconcore.entrypoint:Exception loading extension 'colconcore.environmentvariable.extensionblocklist': (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'}) Traceback (most recent call last): File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 120, in loadentrypoints extensiontype = loadentrypoint(entrypoint) File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 166, in loadentrypoint return entrypoint.load() File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2444, in load self.require(args, *kwargs) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2467, in require items = workingset.resolve(reqs, env, installer, extras=self.extras) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 792, in resolve raise VersionConflict(dist, req).withcontext(dependentreq) pkg_resources.ContextualVersionConflict: (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'})

ERROR:colcon.colconcore.entrypoint:Exception loading extension 'colconcore.environmentvariable.home': (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'}) Traceback (most recent call last): File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 120, in loadentrypoints extensiontype = loadentrypoint(entrypoint) File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 166, in loadentrypoint return entrypoint.load() File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2444, in load self.require(args, *kwargs) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2467, in require items = workingset.resolve(reqs, env, installer, extras=self.extras) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 792, in resolve raise VersionConflict(dist, req).withcontext(dependentreq) pkgresources.ContextualVersionConflict: (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'})

ERROR:colcon.colconcore.entrypoint:Exception loading extension 'colconcore.environmentvariable.loglevel': (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'}) Traceback (most recent call last): File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 120, in loadentrypoints extensiontype = loadentrypoint(entrypoint) File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 166, in loadentrypoint return entrypoint.load() File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2444, in load self.require(args, *kwargs) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2467, in require items = workingset.resolve(reqs, env, installer, extras=self.extras) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 792, in resolve raise VersionConflict(dist, req).withcontext(dependentreq) pkg_resources.ContextualVersionConflict: (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'})

ERROR:colcon.colconcore.entrypoint:Exception loading extension 'colconcore.environmentvariable.warnings': (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'}) Traceback (most recent call last): File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 120, in loadentrypoints extensiontype = loadentrypoint(entrypoint) File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 166, in loadentrypoint return entrypoint.load() File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2444, in load self.require(args, *kwargs) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2467, in require items = workingset.resolve(reqs, env, installer, extras=self.extras) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 792, in resolve raise VersionConflict(dist, req).withcontext(dependentreq) pkgresources.ContextualVersionConflict: (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'})

ERROR:colcon.colconcore.entrypoint:Exception loading extension 'colconcore.environmentvariable.cmakecommand': (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'}) Traceback (most recent call last): File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 120, in loadentrypoints extensiontype = loadentrypoint(entrypoint) File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 166, in loadentrypoint return entrypoint.load() File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2444, in load self.require(args, *kwargs) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2467, in require items = workingset.resolve(reqs, env, installer, extras=self.extras) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 792, in resolve raise VersionConflict(dist, req).withcontext(dependentreq) pkg_resources.ContextualVersionConflict: (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'})

ERROR:colcon.colconcore.entrypoint:Exception loading extension 'colconcore.environmentvariable.ctestcommand': (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'}) Traceback (most recent call last): File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 120, in loadentrypoints extensiontype = loadentrypoint(entrypoint) File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 166, in loadentrypoint return entrypoint.load() File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2444, in load self.require(args, *kwargs) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2467, in require items = workingset.resolve(reqs, env, installer, extras=self.extras) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 792, in resolve raise VersionConflict(dist, req).withcontext(dependentreq) pkg_resources.ContextualVersionConflict: (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'})

ERROR:colcon.colconcore.entrypoint:Exception loading extension 'colconcore.environmentvariable.argcompletetiming': (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'}) Traceback (most recent call last): File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 120, in loadentrypoints extensiontype = loadentrypoint(entrypoint) File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 166, in loadentrypoint return entrypoint.load() File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2444, in load self.require(args, *kwargs) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2467, in require items = workingset.resolve(reqs, env, installer, extras=self.extras) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 792, in resolve raise VersionConflict(dist, req).withcontext(dependentreq) pkg_resources.ContextualVersionConflict: (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'})

ERROR:colcon.colconcore.entrypoint:Exception loading extension 'colconcore.argumentparser.colcon': (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'}) Traceback (most recent call last): File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 120, in loadentrypoints extensiontype = loadentrypoint(entrypoint) File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 166, in loadentrypoint return entrypoint.load() File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2444, in load self.require(args, *kwargs) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2467, in require items = workingset.resolve(reqs, env, installer, extras=self.extras) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 792, in resolve raise VersionConflict(dist, req).withcontext(dependentreq) pkgresources.ContextualVersionConflict: (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'})

ERROR:colcon.colconcore.entrypoint:Exception loading extension 'colconcore.argumentparser.argcomplete': (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'}) Traceback (most recent call last): File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 120, in loadentrypoints extensiontype = loadentrypoint(entrypoint) File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 166, in loadentrypoint return entrypoint.load() File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2444, in load self.require(args, *kwargs) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2467, in require items = workingset.resolve(reqs, env, installer, extras=self.extras) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 792, in resolve raise VersionConflict(dist, req).withcontext(dependentreq) pkgresources.ContextualVersionConflict: (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'})

ERROR:colcon.colconcore.entrypoint:Exception loading extension 'colconcore.verb.test-result': (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'}) Traceback (most recent call last): File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 120, in loadentrypoints extensiontype = loadentrypoint(entrypoint) File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 166, in loadentrypoint return entrypoint.load() File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2444, in load self.require(args, *kwargs) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2467, in require items = workingset.resolve(reqs, env, installer, extras=self.extras) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 792, in resolve raise VersionConflict(dist, req).withcontext(dependentreq) pkg_resources.ContextualVersionConflict: (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'})

ERROR:colcon.colconcore.entrypoint:Exception loading extension 'colconcore.verb.graph': (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'}) Traceback (most recent call last): File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 120, in loadentrypoints extensiontype = loadentrypoint(entrypoint) File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 166, in loadentrypoint return entrypoint.load() File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2444, in load self.require(args, *kwargs) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2467, in require items = workingset.resolve(reqs, env, installer, extras=self.extras) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 792, in resolve raise VersionConflict(dist, req).withcontext(dependentreq) pkg_resources.ContextualVersionConflict: (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'})

ERROR:colcon.colconcore.entrypoint:Exception loading extension 'colconcore.verb.info': (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'}) Traceback (most recent call last): File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 120, in loadentrypoints extensiontype = loadentrypoint(entrypoint) File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 166, in loadentrypoint return entrypoint.load() File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2444, in load self.require(args, *kwargs) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2467, in require items = workingset.resolve(reqs, env, installer, extras=self.extras) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 792, in resolve raise VersionConflict(dist, req).withcontext(dependentreq) pkg_resources.ContextualVersionConflict: (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'})

ERROR:colcon.colconcore.entrypoint:Exception loading extension 'colconcore.verb.list': (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'}) Traceback (most recent call last): File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 120, in loadentrypoints extensiontype = loadentrypoint(entrypoint) File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 166, in loadentrypoint return entrypoint.load() File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2444, in load self.require(args, *kwargs) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2467, in require items = workingset.resolve(reqs, env, installer, extras=self.extras) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 792, in resolve raise VersionConflict(dist, req).withcontext(dependentreq) pkg_resources.ContextualVersionConflict: (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'})

ERROR:colcon.colconcore.entrypoint:Exception loading extension 'colconcore.verb.metadata': (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'}) Traceback (most recent call last): File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 120, in loadentrypoints extensiontype = loadentrypoint(entrypoint) File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 166, in loadentrypoint return entrypoint.load() File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2444, in load self.require(args, *kwargs) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2467, in require items = workingset.resolve(reqs, env, installer, extras=self.extras) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 792, in resolve raise VersionConflict(dist, req).withcontext(dependentreq) pkg_resources.ContextualVersionConflict: (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'})

ERROR:colcon.colconcore.entrypoint:Exception loading extension 'colconcore.verb.extension-points': (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'}) Traceback (most recent call last): File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 120, in loadentrypoints extensiontype = loadentrypoint(entrypoint) File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 166, in loadentrypoint return entrypoint.load() File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2444, in load self.require(args, *kwargs) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2467, in require items = workingset.resolve(reqs, env, installer, extras=self.extras) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 792, in resolve raise VersionConflict(dist, req).withcontext(dependentreq) pkg_resources.ContextualVersionConflict: (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'})

ERROR:colcon.colconcore.entrypoint:Exception loading extension 'colconcore.verb.extensions': (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'}) Traceback (most recent call last): File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 120, in loadentrypoints extensiontype = loadentrypoint(entrypoint) File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 166, in loadentrypoint return entrypoint.load() File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2444, in load self.require(args, *kwargs) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2467, in require items = workingset.resolve(reqs, env, installer, extras=self.extras) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 792, in resolve raise VersionConflict(dist, req).withcontext(dependentreq) pkg_resources.ContextualVersionConflict: (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'})

ERROR:colcon.colconcore.entrypoint:Exception loading extension 'colconcore.verb.version-check': (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'}) Traceback (most recent call last): File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 120, in loadentrypoints extensiontype = loadentrypoint(entrypoint) File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 166, in loadentrypoint return entrypoint.load() File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2444, in load self.require(args, *kwargs) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2467, in require items = workingset.resolve(reqs, env, installer, extras=self.extras) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 792, in resolve raise VersionConflict(dist, req).withcontext(dependentreq) pkg_resources.ContextualVersionConflict: (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'})

ERROR:colcon.colconcore.entrypoint:Exception loading extension 'colconcore.verb.build': (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'}) Traceback (most recent call last): File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 120, in loadentrypoints extensiontype = loadentrypoint(entrypoint) File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 166, in loadentrypoint return entrypoint.load() File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2444, in load self.require(args, *kwargs) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2467, in require items = workingset.resolve(reqs, env, installer, extras=self.extras) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 792, in resolve raise VersionConflict(dist, req).withcontext(dependentreq) pkg_resources.ContextualVersionConflict: (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'})

ERROR:colcon.colconcore.entrypoint:Exception loading extension 'colconcore.verb.test': (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'}) Traceback (most recent call last): File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 120, in loadentrypoints extensiontype = loadentrypoint(entrypoint) File "/home/mark/.local/lib/python3.8/site-packages/colconcore/entrypoint.py", line 166, in loadentrypoint return entrypoint.load() File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2444, in load self.require(args, *kwargs) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 2467, in require items = workingset.resolve(reqs, env, installer, extras=self.extras) File "/usr/lib/python3/dist-packages/pkgresources/init.py", line 792, in resolve raise VersionConflict(dist, req).withcontext(dependentreq) pkg_resources.ContextualVersionConflict: (pytest 4.6.9 (/usr/lib/python3/dist-packages), Requirement.parse('pytest>=5.3'), {'pytest-rerunfailures'})

Traceback (most recent call last): File "/home/mark/.local/bin/colcon", line 8, in sys.exit(main()) File "/home/mark/.local/lib/python3.8/site-packages/colconcore/command.py", line 118, in main return _main(commandname=commandname, argv=argv) File "/home/mark/.local/lib/python3.8/site-packages/colconcore/command.py", line 148, in main subparser = createsubparser( File "/home/mark/.local/lib/python3.8/site-packages/colconcore/command.py", line 379, in createsubparser assert verb_extensions, 'No verb extensions' AssertionError: No verb extensions

i installed it correctly and it said ark@MarkLinux:~/dev_ws$ sudo apt install python3-colcon-common-extensions Reading package lists... Done Building dependency tree
Reading state information... Done python3-colcon-common-extensions is already the newest version (0.3.0-1). 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

what am i doing wrong?