# Problemas no npm ao executar o rfbrowser init **URL:** \ **Category:** Browser\ **Created:** [18 November 2023 22:44 UTC](https://forum.robotframework.org/t/problemas-no-npm-ao-executar-o-rfbrowser-init/6489 "2023-11-18T22:44:58Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Josiane](https://avatars.discourse-cdn.com/v4/letter/j/58f4c7/32.png) [@Josiane](https://forum.robotframework.org/u/Josiane)\ **Post date:** [18 November 2023 22:44 UTC](https://forum.robotframework.org/t/problemas-no-npm-ao-executar-o-rfbrowser-init/6489/1 "2023-11-18T22:44:58Z")
Boa noite pessoal! Gostaria de saber se alguém consegue me ajudar com este problema… Após instalar a biblioteca Browser, quando executo o rfbrowser init está retornando o seguinte problema: File “C:\Python312\Lib\subprocess.py”, line 571, in run raise CalledProcessError(retcode, process.args, subprocess.CalledProcessError: Command ‘[‘npm’, ‘-v’]’ returned non-zero exit status 1. Acima tem a parte do erro específico (para facilitar), aqui abaixo vou colocar o retorno completo. $ rfbrowser init 2023-11-18 19:33:02,936 [INFO] ============================================================================================================== 2023-11-18 19:33:02,936 [INFO] Installing node dependencies… O sistema não pode encontrar o caminho especificado. 2023-11-18 19:33:03,378 [INFO] Couldn’t execute npm. Please ensure you have node.js and npm installed and in PATH.See [https://nodejs.org/](https://nodejs.org/) for documentation 2023-11-18 19:33:03,379 [INFO] ============================================================================================================== 2023-11-18 19:33:03,381 [INFO] Traceback (most recent call last): File “C:\Python312\Lib\site-packages\Browser\entry.py”, line 324, in init \_rfbrowser\_init(skip\_browsers, silent\_mode, with\_deps, browser) File “C:\Python312\Lib\site-packages\Browser\entry.py”, line 131, in \_rfbrowser\_init \_check\_npm() File “C:\Python312\Lib\site-packages\Browser\entry.py”, line 123, in \_check\_npm raise exception File “C:\Python312\Lib\site-packages\Browser\entry.py”, line 111, in \_check\_npm subprocess.run( File “C:\Python312\Lib\subprocess.py”, line 571, in run raise CalledProcessError(retcode, process.args, subprocess.CalledProcessError: Command ‘[‘npm’, ‘-v’]’ returned non-zero exit status 1. Agradeço desde já. ---
**Author:** ![HelioGuilherme66](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.robotframework.org/helioguilherme66/32/34_2.png) [@HelioGuilherme66](https://forum.robotframework.org/u/HelioGuilherme66)\ **Post date:** [18 November 2023 23:11 UTC](https://forum.robotframework.org/t/problemas-no-npm-ao-executar-o-rfbrowser-init/6489/2 "2023-11-18T23:11:34Z")
Josiane, the communication here is in English. But I can already say something: - Your problem is related to the rfbrowser installer not finding NodeJS `npm` (`npm` is the command to install and run node modules) - Other thing might be the version of Python. I don’t know if Browser is compatible with Python 3.12 - You should move this message to the Topic #Browser Boa Sorte ---
**Author:** ![Josiane](https://avatars.discourse-cdn.com/v4/letter/j/58f4c7/32.png) [@Josiane](https://forum.robotframework.org/u/Josiane)\ **Post date:** [18 November 2023 23:24 UTC](https://forum.robotframework.org/t/problemas-no-npm-ao-executar-o-rfbrowser-init/6489/3 "2023-11-18T23:24:35Z")
Thanks. I Will try The indicated solutions. ---
**Author:** ![Josiane](https://avatars.discourse-cdn.com/v4/letter/j/58f4c7/32.png) [@Josiane](https://forum.robotframework.org/u/Josiane)\ **Post date:** [21 November 2023 17:27 UTC](https://forum.robotframework.org/t/problemas-no-npm-ao-executar-o-rfbrowser-init/6489/4 "2023-11-21T17:27:10Z")
Good afternoon! I redid the installation of node and python, both with compatible versions, but the error still persists. Python is installed in the c: folder, outside the programs folder and node is installed in the c://programas folder. I tried to put them both on the same route (just c:// or just c://programs) but the same thing persists. Do you have any other instructions that could help me please? Thanks. ---
**Author:** ![HelioGuilherme66](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.robotframework.org/helioguilherme66/32/34_2.png) [@HelioGuilherme66](https://forum.robotframework.org/u/HelioGuilherme66)\ **Post date:** [21 November 2023 20:51 UTC](https://forum.robotframework.org/t/problemas-no-npm-ao-executar-o-rfbrowser-init/6489/5 "2023-11-21T20:51:15Z")
I am not an expert on Browser. Maybe @mkorpela or @aaltat can help you. Are you sure Browser is compatible with Python 3.12? ---
**Author:** ![Josiane](https://avatars.discourse-cdn.com/v4/letter/j/58f4c7/32.png) [@Josiane](https://forum.robotframework.org/u/Josiane)\ **Post date:** [21 November 2023 22:14 UTC](https://forum.robotframework.org/t/problemas-no-npm-ao-executar-o-rfbrowser-init/6489/6 "2023-11-21T22:14:56Z")
Yes it is compatible. Thank you for your help. @mkorpela or @aaltat Can you help me with this problem please? ---
**Author:** ![damies13](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.robotframework.org/damies13/32/623_2.png) [@damies13](https://forum.robotframework.org/u/damies13)\ **Post date:** [21 November 2023 23:41 UTC](https://forum.robotframework.org/t/problemas-no-npm-ao-executar-o-rfbrowser-init/6489/7 "2023-11-21T23:41:17Z")
Hi Josiane, From your error ```python Couldn’t execute npm. Please ensure you have node.js and npm installed and in PATH ``` Since it appears you are using windows, try typing ```python echo %PATH% ``` and see if the node folder is in the path? Also you can try running ```python npm -? ``` This should give you the npm help screen: ```python npm Usage: npm install install all the dependencies in your project npm install add the dependency to your project npm test run this project's tests npm run run the script named npm -h quick help on npm -l display usage info for all commands npm help search for help on npm help npm more involved overview ``` If it doesn’t then the issue is not a browser library issue. Also a tip, if you had the command line window open before you installed NodeJS, then the path update that NodeJS installer should have done won’t have been applied to your command window (this is how windows works), you should keep all the command windows closed when installing NodeJS and python, then open a new command window after the installs are finished to get the path updates. Hope that helps, Dave.