Runtimeerror failed to load Pipfile.lock

hello, when I try to install mysqlclient on my Django project, I am facing this error. since I am a complete beginner for python-jango, could someone help me out on solving this issue?

(demoproject) chandanm@Chandans-MacBook-Air demoproject % pipenv install mysqlserver

Installing mysqlserver… Resolving mysqlserver… Added mysqlserver to Pipfile’s [packages] … :heavy_check_mark: Installation Succeeded Pipfile.lock (e35515) out of date, updating to (8070c0)… Locking [packages] dependencies… Building requirements… Resolving dependencies… ✘ Locking Failed! ⠹ Locking…False CRITICAL:pipenv.patched.pip._internal.resolution.resolvelib.factory:Could not find a version that satisfies the requirement mysqlserver (from versions: none) [ResolutionFailure]: File “/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pipenv/resolver.py”, line 645, in _main [ResolutionFailure]: resolve_packages( [ResolutionFailure]: File “/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pipenv/resolver.py”, line 612, in resolve_packages [ResolutionFailure]: results, resolver = resolve( [ResolutionFailure]: ^^^^^^^^ [ResolutionFailure]: File “/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pipenv/resolver.py”, line 592, in resolve [ResolutionFailure]: return resolve_deps( [ResolutionFailure]: ^^^^^^^^^^^^^ [ResolutionFailure]: File “/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pipenv/utils/resolver.py”, line 908, in resolve_deps [ResolutionFailure]: results, hashes, internal_resolver = actually_resolve_deps( [ResolutionFailure]: ^^^^^^^^^^^^^^^^^^^^^^ [ResolutionFailure]: File “/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pipenv/utils/resolver.py”, line 681, in actually_resolve_deps [ResolutionFailure]: resolver.resolve() [ResolutionFailure]: File “/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pipenv/utils/resolver.py”, line 442, in resolve [ResolutionFailure]: raise ResolutionFailure(message=str(e)) [pipenv.exceptions.ResolutionFailure]: Warning: Your dependencies could not be resolved. You likely have a mismatch in your sub-dependencies. You can use $ pipenv run pip install <requirement_name> to bypass this mechanism, then run $ pipenv graph to inspect the versions actually installed in the virtualenv. Hint: try $ pipenv lock --pre if it is a pre-release dependency. ERROR: No matching distribution found for mysqlserver

Traceback (most recent call last): File “/Library/Frameworks/Python.framework/Versions/3.12/bin/pipenv”, line 8, in sys.exit(cli()) ^^^^^ File “/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pipenv/vendor/click/core.py”, line 1157, in call return self.main(*args, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^ File “/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pipenv/cli/options.py”, line 58, in main return super().main(*args, **kwargs, windows_expand_args=False) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File “/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pipenv/vendor/click/core.py”, line 1078, in main rv = self.invoke(ctx) ^^^^^^^^^^^^^^^^ File “/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pipenv/vendor/click/core.py”, line 1688, in invoke return _process_result(sub_ctx.command.invoke(sub_ctx)) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File “/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pipenv/vendor/click/core.py”, line 1434, in invoke return ctx.invoke(self.callback, **ctx.params) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File “/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pipenv/vendor/click/core.py”, line 783, in invoke return __callback(*args, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^ File “/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pipenv/vendor/click/decorators.py”, line 92, in new_func return ctx.invoke(f, obj, *args, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File “/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pipenv/vendor/click/core.py”, line 783, in invoke return __callback(*args, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^ File “/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pipenv/cli/command.py”, line 209, in install do_install( File “/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pipenv/routines/install.py”, line 297, in do_install raise e File “/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pipenv/routines/install.py”, line 281, in do_install do_init( File “/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pipenv/routines/install.py”, line 648, in do_init do_lock( File “/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pipenv/routines/lock.py”, line 65, in do_lock venv_resolve_deps( File “/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pipenv/utils/resolver.py”, line 849, in venv_resolve_deps c = resolve(cmd, st, project=project) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File “/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pipenv/utils/resolver.py”, line 718, in resolve raise RuntimeError(“Failed to lock Pipfile.lock!”) RuntimeError: Failed to lock Pipfile.lock!

it worked. what I did was, I tried to install the previous version of mysqlclient. that is pipenv install mysqlclient==2.1.1

and it worked.

Hello, try this: mysqlclient · PyPI it worked for me