问题
I am trying to install django-crispy-forms using pipenv.
It installs because when I run "pip freeze" command I see it.
when it is time to Locking [packages] dependencies…
It faces to lock and I get this error.
[pipenv.exceptions.ResolutionFailure]: File "c:/users/rapture c.
godson/appdat
a/local/programs/python/python37-32/lib/site-
packages/pipenv/resolver.py", line
69, in resolve
[pipenv.exceptions.ResolutionFailure]: req_dir=requirements_dir
[pipenv.exceptions.ResolutionFailure]: File "c:\users\rapture c.
godson\appdat
a\local\programs\python\python37-32\lib\site-packages\pipenv\utils.py",
line 726
, in resolve_deps
[pipenv.exceptions.ResolutionFailure]: req_dir=req_dir,
[pipenv.exceptions.ResolutionFailure]: File "c:\users\rapture c.
godson\appdat
a\local\programs\python\python37-32\lib\site-packages\pipenv\utils.py",
line 480
, in actually_resolve_deps
[pipenv.exceptions.ResolutionFailure]: resolved_tree =
resolver.resolve()
[pipenv.exceptions.ResolutionFailure]: File "c:\users\rapture c.
godson\appdat
a\local\programs\python\python37-32\lib\site-packages\pipenv\utils.py",
line 395
, in resolve
[pipenv.exceptions.ResolutionFailure]: raise
ResolutionFailure(message=str
(e))
[pipenv.exceptions.ResolutionFailure]:
pipenv.exceptions.ResolutionFailure
: ERROR: ERROR: Could not find a version that matches install
[pipenv.exceptions.ResolutionFailure]: No versions found
[pipenv.exceptions.ResolutionFailure]: Warning: Your dependencies could
not be resolved. You likely have a mismatch in your sub-dependencies.
First try clearing your dependency cache with $ pipenv lock --clear, then
try the original command again. Alternatively, you can use $ pipenv
install --skip-lock to bypass this mechanism, then run $ pipenv graph to
inspect the situation.
Hint: try $ pipenv lock --pre if it is a pre-release dependency.ERROR:
ERROR: Could not find a version that matches install
No versions found
Was https://pypi.org/simple reachable?
I have tried running the following commands suggest[pipenv install --skip-lock and pipenv install --skip-lock] but I still get the same error.
how can this be fixed because I want to deploy the project on Heroku and I don't know if this will prevents the project from deploying?
回答1:
Try to remove from pipfile the library that gives you the problem, check if you have a typo.
pipenv install "any-library" will insert "any-library" to the pipfile even if it does not exist, that could be one reason for the error,
example: $ pipenv install any-library
ERROR: ERROR: Could not find a version that matches any-library
来源：https://stackoverflow.com/questions/54494286/how-to-fix-error-could-not-find-a-version-that-matches-install