Init failed due to failure to install/detect required version of "bun"

[rwbot]

Describe the bug
Fails to detect/install its required version of a package called "bun"

To Reproduce
Following the installation tutorial, created a new venv, installed reflex and tried to run init
Steps to reproduce the behavior:

Expected behavior
Expected reflex to install itself and its required dependencies in the current venv

Output

can@ubuntu:~/dev/rx$ source .venv/bin/activate
(rx) can@ubuntu:~/dev/rx$ pip install reflex
Defaulting to user installation because normal site-packages is not writeable
Collecting reflex
  Downloading reflex-0.7.6-py3-none-any.whl (846 kB)
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 846.2/846.2 KB 2.9 MB/s eta 0:00:00
Collecting fastapi!=0.111.0,!=0.111.1,>=0.96.0
  Downloading fastapi-0.115.12-py3-none-any.whl (95 kB)
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 95.2/95.2 KB 4.1 MB/s eta 0:00:00
Collecting typer<1.0,>=0.15.1
  Downloading typer-0.15.2-py3-none-any.whl (45 kB)
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 45.1/45.1 KB 3.0 MB/s eta 0:00:00
Collecting sqlmodel<0.1,>=0.0.14
  Downloading sqlmodel-0.0.24-py3-none-any.whl (28 kB)
Requirement already satisfied: typing-extensions>=4.6.0 in /home/can/.local/lib/python3.10/site-packages (from reflex) (4.13.1)
Collecting python-socketio<6.0,>=5.7.0
  Downloading python_socketio-5.12.1-py3-none-any.whl (76 kB)
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 76.9/76.9 KB 2.7 MB/s eta 0:00:00
Collecting python-multipart<1.0,>=0.0.20
  Downloading python_multipart-0.0.20-py3-none-any.whl (24 kB)
Requirement already satisfied: uvicorn>=0.20.0 in /home/can/.local/lib/python3.10/site-packages (from reflex) (0.34.0)
Collecting rich<14.0,>=13.0.0
  Downloading rich-13.9.4-py3-none-any.whl (242 kB)
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 242.4/242.4 KB 3.0 MB/s eta 0:00:00
Collecting reflex-hosting-cli>=0.1.29
  Downloading reflex_hosting_cli-0.1.36-py3-none-any.whl (38 kB)
Collecting wrapt<2.0,>=1.17.0
  Downloading wrapt-1.17.2-cp310-cp310-manylinux_2_5_x86_64.manylinux1_x86_64.manylinux_2_17_x86_64.manylinux2014_x86_64.whl (82 kB)
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 82.8/82.8 KB 3.9 MB/s eta 0:00:00
Requirement already satisfied: httpx<1.0,>=0.25.1 in /home/can/.local/lib/python3.10/site-packages (from reflex) (0.28.1)
Requirement already satisfied: packaging<25.0,>=23.1 in /home/can/.local/lib/python3.10/site-packages (from reflex) (24.2)
Collecting redis<6.0,>=4.3.5
  Downloading redis-5.2.1-py3-none-any.whl (261 kB)
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 261.5/261.5 KB 4.9 MB/s eta 0:00:00
Requirement already satisfied: jinja2<4.0,>=3.1.2 in /home/can/.local/lib/python3.10/site-packages (from reflex) (3.1.6)
Collecting alembic<2.0,>=1.11.1
  Downloading alembic-1.15.2-py3-none-any.whl (231 kB)
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 231.9/231.9 KB 5.4 MB/s eta 0:00:00
Collecting granian[reload]>=2.2.0
  Downloading granian-2.2.2-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (3.0 MB)
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 3.0/3.0 MB 7.1 MB/s eta 0:00:00
Requirement already satisfied: pydantic<3.0,>=1.10.21 in /home/can/.local/lib/python3.10/site-packages (from reflex) (2.11.2)
Requirement already satisfied: psutil<8.0,>=5.9.4 in /home/can/.local/lib/python3.10/site-packages (from reflex) (7.0.0)
Collecting distro<2.0,>=1.8.0
  Downloading distro-1.9.0-py3-none-any.whl (20 kB)
Collecting gunicorn<24.0.0,>=23.0.0
  Downloading gunicorn-23.0.0-py3-none-any.whl (85 kB)
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 85.0/85.0 KB 5.1 MB/s eta 0:00:00
Requirement already satisfied: platformdirs<5.0,>=3.10.0 in /home/can/.local/lib/python3.10/site-packages (from reflex) (4.3.7)
Collecting SQLAlchemy>=1.4.0
  Downloading sqlalchemy-2.0.40-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (3.1 MB)
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 3.1/3.1 MB 8.7 MB/s eta 0:00:00
Requirement already satisfied: Mako in /usr/lib/python3/dist-packages (from alembic<2.0,>=1.11.1->reflex) (1.1.3)
Requirement already satisfied: starlette<0.47.0,>=0.40.0 in /home/can/.local/lib/python3.10/site-packages (from fastapi!=0.111.0,!=0.111.1,>=0.96.0->reflex) (0.46.1)
Requirement already satisfied: click>=8.0.0 in /usr/lib/python3/dist-packages (from granian[reload]>=2.2.0->reflex) (8.0.3)
Collecting watchfiles~=1.0
  Downloading watchfiles-1.0.5-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (454 kB)
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 454.9/454.9 KB 5.6 MB/s eta 0:00:00
Requirement already satisfied: httpcore==1.* in /home/can/.local/lib/python3.10/site-packages (from httpx<1.0,>=0.25.1->reflex) (1.0.7)
Requirement already satisfied: anyio in /home/can/.local/lib/python3.10/site-packages (from httpx<1.0,>=0.25.1->reflex) (4.9.0)
Requirement already satisfied: certifi in /usr/lib/python3/dist-packages (from httpx<1.0,>=0.25.1->reflex) (2020.6.20)
Requirement already satisfied: idna in /usr/lib/python3/dist-packages (from httpx<1.0,>=0.25.1->reflex) (3.3)
Requirement already satisfied: h11<0.15,>=0.13 in /home/can/.local/lib/python3.10/site-packages (from httpcore==1.*->httpx<1.0,>=0.25.1->reflex) (0.14.0)
Requirement already satisfied: MarkupSafe>=2.0 in /usr/lib/python3/dist-packages (from jinja2<4.0,>=3.1.2->reflex) (2.0.1)
Requirement already satisfied: annotated-types>=0.6.0 in /home/can/.local/lib/python3.10/site-packages (from pydantic<3.0,>=1.10.21->reflex) (0.7.0)
Requirement already satisfied: pydantic-core==2.33.1 in /home/can/.local/lib/python3.10/site-packages (from pydantic<3.0,>=1.10.21->reflex) (2.33.1)
Requirement already satisfied: typing-inspection>=0.4.0 in /home/can/.local/lib/python3.10/site-packages (from pydantic<3.0,>=1.10.21->reflex) (0.4.0)
Collecting python-engineio>=4.11.0
  Downloading python_engineio-4.11.2-py3-none-any.whl (59 kB)
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 59.2/59.2 KB 3.4 MB/s eta 0:00:00
Collecting bidict>=0.21.0
  Downloading bidict-0.23.1-py3-none-any.whl (32 kB)
Collecting async-timeout>=4.0.3
  Downloading async_timeout-5.0.1-py3-none-any.whl (6.2 kB)
Collecting tabulate<0.10.0,>=0.9.0
  Downloading tabulate-0.9.0-py3-none-any.whl (35 kB)
Collecting charset-normalizer<4.0.0,>=3.3.2
  Downloading charset_normalizer-3.4.1-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (146 kB)
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 146.1/146.1 KB 7.6 MB/s eta 0:00:00
Requirement already satisfied: pyyaml<7.0.0,>=6.0.2 in /home/can/.local/lib/python3.10/site-packages (from reflex-hosting-cli>=0.1.29->reflex) (6.0.2)
Collecting markdown-it-py>=2.2.0
  Downloading markdown_it_py-3.0.0-py3-none-any.whl (87 kB)
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 87.5/87.5 KB 5.4 MB/s eta 0:00:00
Requirement already satisfied: pygments<3.0.0,>=2.13.0 in /home/can/.local/lib/python3.10/site-packages (from rich<14.0,>=13.0.0->reflex) (2.19.1)
Collecting shellingham>=1.3.0
  Downloading shellingham-1.5.4-py2.py3-none-any.whl (9.8 kB)
Collecting mdurl~=0.1
  Downloading mdurl-0.1.2-py3-none-any.whl (10.0 kB)
Collecting simple-websocket>=0.10.0
  Downloading simple_websocket-1.1.0-py3-none-any.whl (13 kB)
Collecting greenlet>=1
  Downloading greenlet-3.1.1-cp310-cp310-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl (599 kB)
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 599.5/599.5 KB 7.6 MB/s eta 0:00:00
Requirement already satisfied: sniffio>=1.1 in /home/can/.local/lib/python3.10/site-packages (from anyio->httpx<1.0,>=0.25.1->reflex) (1.3.1)
Requirement already satisfied: exceptiongroup>=1.0.2 in /home/can/.local/lib/python3.10/site-packages (from anyio->httpx<1.0,>=0.25.1->reflex) (1.2.2)
Collecting wsproto
  Downloading wsproto-1.2.0-py3-none-any.whl (24 kB)
Installing collected packages: wsproto, wrapt, tabulate, shellingham, python-multipart, mdurl, gunicorn, greenlet, granian, distro, charset-normalizer, bidict, async-timeout, watchfiles, SQLAlchemy, simple-websocket, redis, markdown-it-py, sqlmodel, rich, python-engineio, fastapi, alembic, typer, python-socketio, reflex-hosting-cli, reflex
Successfully installed SQLAlchemy-2.0.40 alembic-1.15.2 async-timeout-5.0.1 bidict-0.23.1 charset-normalizer-3.4.1 distro-1.9.0 fastapi-0.115.12 granian-2.2.2 greenlet-3.1.1 gunicorn-23.0.0 markdown-it-py-3.0.0 mdurl-0.1.2 python-engineio-4.11.2 python-multipart-0.0.20 python-socketio-5.12.1 redis-5.2.1 reflex-0.7.6 reflex-hosting-cli-0.1.36 rich-13.9.4 shellingham-1.5.4 simple-websocket-1.1.0 sqlmodel-0.0.24 tabulate-0.9.0 typer-0.15.2 watchfiles-1.0.5 wrapt-1.17.2 wsproto-1.2.0
(rx) can@ubuntu:~/dev/rx$ reflex init
─────────────────────────────────── Initializing rx ───────────────────────────────────
Info: Using custom Bun path: /home/can/.nvm/versions/node/v22.14.0/bin/bun
Reflex requires bun version 1.2.8 or higher to run, but the detected version is 1.2.7. 
If you have specified a custom bun path in your config, make sure to provide one that 
satisfies the minimum version requirement.
(rx) can@ubuntu:~/dev/rx$ reflex init --loglevel debug
Debug: Overriding config value loglevel with env var LOGLEVEL=debug
───────────────────────────────────── System Info ─────────────────────────────────────
Debug: Config file: 
'/home/can/dev/rx/.venv/lib/python3.10/site-packages/reflex/config.py'
Debug: Config: app_name='' app_module_import=None loglevel=<LogLevel.DEBUG: 'debug'> 
frontend_port=None frontend_path='' backend_port=None api_url='http://localhost:8000' 
deploy_url='http://localhost:3000' backend_host='0.0.0.0' db_url='sqlite:///reflex.db' 
async_db_url=None redis_url=None telemetry_enabled=True 
bun_path=PosixPath('/home/can/.local/share/reflex/bun/bin/bun') 
static_page_generation_timeout=60 cors_allowed_origins=['*'] tailwind={'plugins': 
['@tailwindcss/typography']} timeout=None next_compression=True 
next_dev_indicators=False react_strict_mode=True frontend_packages=[] 
gunicorn_worker_class='uvicorn.workers.UvicornH11Worker' gunicorn_workers=None 
gunicorn_max_requests=None gunicorn_max_requests_jitter=None 
state_manager_mode=<StateManagerMode.DISK: 'disk'> redis_lock_expiration=10000 
redis_lock_warning_threshold=1000 redis_token_expiration=3600 env_file=None 
show_built_with_reflex=None is_reflex_cloud=False extra_overlay_function=None
Debug: Running command: [PosixPath('/home/can/.nvm/versions/node/v22.14.0/bin/node'), 
'-v']
Debug: Running command: ['/home/can/.nvm/versions/node/v22.14.0/bin/bun', '-v']
Debug: [Reflex 0.7.6 with Python 3.10.12 (PATH: /home/can/dev/rx/.venv/bin/python)]
Debug: [Node 22.14.0 (Minimum: 18.18.0) 
(PATH:/home/can/.nvm/versions/node/v22.14.0/bin/node)]
Debug: [Bun 1.2.7 (Minimum: 1.2.8) (PATH: 
/home/can/.nvm/versions/node/v22.14.0/bin/bun)]
Debug: [OS Linux Ubuntu 22.04.5 LTS]
Debug: Using package installer at: ['/home/can/.nvm/versions/node/v22.14.0/bin/bun', 
'/home/can/.nvm/versions/node/v22.14.0/bin/npm']
Debug: Running command: [PosixPath('/home/can/.nvm/versions/node/v22.14.0/bin/node'), 
'-v']
Debug: Using package executer at: [['/home/can/.nvm/versions/node/v22.14.0/bin/bun'], 
['/home/can/.nvm/versions/node/v22.14.0/bin/npm']]
Debug: Unzip path: /usr/bin/unzip
─────────────────────────────────── Initializing rx ───────────────────────────────────
Debug: Checking for the latest version of reflex...
Debug: Sending HTTPS request to https://pypi.org/pypi/reflex/json
Debug: Received response from https://pypi.org/pypi/reflex/json in 0.126 seconds
Debug: Latest version of reflex: 0.7.6
Debug: Creating /home/can/.local/share/reflex
Debug: Ensuring reflex installation id.
Debug: Creating /home/can/.local/share/reflex
Debug: Validating frontend dependencies.
Info: Using custom Bun path: /home/can/.nvm/versions/node/v22.14.0/bin/bun
Debug: Running command: ['/home/can/.nvm/versions/node/v22.14.0/bin/bun', '-v']
Reflex requires bun version 1.2.8 or higher to run, but the detected version is 1.2.7. 
If you have specified a custom bun path in your config, make sure to provide one that 
satisfies the minimum version requirement.

Specifics (please complete the following information):

(rx) can@ubuntu:~/dev/rx$ reflex -v
0.7.6
(rx) can@ubuntu:~/dev/rx$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 22.04.5 LTS
Release:        22.04
Codename:       jammy
(rx) can@ubuntu:~/dev/rx$ python -V
Python 3.10.12
(rx) can@ubuntu:~/dev/rx$ pip -V
pip 22.0.2 from /usr/lib/python3/dist-packages/pip (python 3.10)

Additional context
Add any other context about the problem here.

[linear]

ENG-5466 Init failed due to failure to install/detect required version of "bun"

[adhami3310]

the behavior is a bit weird, we can improve on it

1. reflex finds bun inside of your global environment and no locally installed by reflex

2. reflex then decides that it should use the bun inside of your global environment, even though it's outdated

3. reflex gets mad at the outdated version without much helpful suggestion

we can do multiple things here (not mutually exclusive):

1. suggest that the developer upgrades their global bun, with bun upgrade

2. only warn the user instead of erroring

3. if the global bun is outdated, install a local one that's updated

as a workaround for now, update your global bun version

[rwbot]

@adhami3310 appreciate the speedy response! wasn't sure what bun was, and tried doing pip install --upgrade bun which was successful, but didn't fix it. saw the mismatch in version numbers and after some googling, realized it wasn't a python package. eventually got to bun upgrade which successfully fixed the issue.

i initially made the issue because i thought it was weird that reflex init didn't install it's required bun version into the venv, but upon realizing it wasn't a python requirement, that brought up another question - does reflex install all the javascript deps in a virtual js env similar to python? or do the js packages install globally?

[adhami3310]

bun is what we use to compile/run the frontend. it's not a python package but a system package (written in zig, but it's a javascript tool)

you did have bun installed in your system (for whatever reason), reflex didn't install that one

if reflex doesn't find bun in your host system, it will install one inside of a local dir that will be shared between all of your reflex apps (so not per env)

[rwbot]

@adhami3310 gotcha, thanks for the clarification