`pipenv install` throws `--system is intended to be used for pre-existing Pipfile installation`

Issue description

Running pipenv install in a new project throws an error, if there was a project created before with the same directory path.

Expected result

pipenv should be able to handle this situation without error. Not sure what the best approach would be here.

Steps to replicate

1. Create a pipenv project:

$ mkdir foo
$ cd foo
$ pipenv install

1. Delete the pipenv project:

$ cd ..
$ rm -rf foo

1. Create a new project again:

$ mkdir foo
$ pipenv install

1. You get an error:

Usage: pipenv install [OPTIONS] [PACKAGES]...

ERROR:: --system is intended to be used for pre-existing Pipfile installation, not installation of specific packages. Aborting.

$ pipenv --support

Pipenv version: '2022.4.8'

Pipenv location: '/opt/homebrew/Cellar/pipenv/2022.4.8/libexec/lib/python3.10/site-packages/pipenv'

Python location: '/opt/homebrew/Cellar/pipenv/2022.4.8/libexec/bin/python3.10'

Python installations found:

• 3.9.12: /opt/homebrew/bin/python3
• 3.9.12: /opt/homebrew/bin/python3.9
• 3.8.9: /usr/bin/python3

PEP 508 Information:

{'implementation_name': 'cpython',
 'implementation_version': '3.10.2',
 'os_name': 'posix',
 'platform_machine': 'arm64',
 'platform_python_implementation': 'CPython',
 'platform_release': '21.4.0',
 'platform_system': 'Darwin',
 'platform_version': 'Darwin Kernel Version 21.4.0: Fri Mar 18 00:47:26 PDT '
                     '2022; root:xnu-8020.101.4~15/RELEASE_ARM64_T8101',
 'python_full_version': '3.10.2',
 'python_version': '3.10',
 'sys_platform': 'darwin'}

System environment variables:

• PATH
• MANPATH
• NIX_PROFILES
• TERM_PROGRAM
• _P9K_TTY
• SHELL
• TERM
• HOMEBREW_REPOSITORY
• TMPDIR
• PYPI_SERVER_PASSWORD
• TERM_PROGRAM_VERSION
• PIPENV_SYSTEM
• TERM_SESSION_ID
• USER
• SSH_AUTH_SOCK
• _
• __CFBundleIdentifier
• PWD
• JAVA_HOME
• P9K_SSH
• BASE16_THEME
• P9K_TTY
• XPC_FLAGS
• NIX_SSL_CERT_FILE
• XPC_SERVICE_NAME
• PYPI_SERVER_USER
• SHLVL
• HOME
• HOMEBREW_PREFIX
• LOGNAME
• LC_CTYPE
• INFOPATH
• HOMEBREW_CELLAR
• __CF_USER_TEXT_ENCODING
• PIP_SHIMS_BASE_MODULE
• PIP_DISABLE_PIP_VERSION_CHECK
• PIP_PYTHON_PATH
• PYTHONDONTWRITEBYTECODE
• PYTHONFINDER_IGNORE_UNSUPPORTED

Pipenv–specific environment variables:

• PIPENV_SYSTEM: 0

Debug–specific environment variables:

• PATH: /opt/homebrew/Cellar/pipenv/2022.4.8/libexec/tools:/Users/ajeet.dsouza/.deno/bin:/Users/ajeet.dsouza/.local/bin:/opt/homebrew/bin:/opt/homebrew/sbin:/Users/ajeet.dsouza/.nix-profile/bin:/nix/var/nix/profiles/default/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Users/ajeet.dsouza/.cargo/bin:/Users/ajeet.dsouza/.local/bin
• SHELL: /bin/zsh
• PWD: /Users/ajeet.dsouza/ws/bot-detection

---

[MdShihabAhmed]

There exists another folder having same name of the deleted folder in the beginning, under ‘.virtualenvs’ folder.

pipenv --venv

This command will find the path of that folder. Then deleting that folder fixed the issue.

[Alireza-RST]

I solve this by removing the previous virtualenv.