Sp-dev-docs: gulp servce cannot find module microsoft/sp-build-web

[sitipoi]

Category

• [x] Question

Expected or Desired Behavior

I should be able to follow https://docs.microsoft.com/en-us/sharepoint/dev/spfx/web-parts/get-started/build-a-hello-world-web-part
but I am having errors when entering gulp serve error is

module.js:540
throw err;
^

Error: Cannot find module 'microsoft/sp-build-web'
at Function.Module._resolveFilename (module.js:538:15)

i tried executing npm i but there seems to be an error

ERR! stack Error: unable to get local issuer certificate

[andrewconnell]

You usually hit that when you are behind a corporate proxy... does your (work?) network use a proxy?

See this for some help in configuring it if you are in fact behind a proxy:
https://jjasonclark.com/how-to-setup-node-behind-web-proxy/

_BTW, simple solution for this was to Google "npm ERR! stack Error: unable to get local issuer certificate" and all the first hits you see are related to proxies. _

[sitipoi]

hello, not sure if we have a corporate proxy. our IT guy has no idea and he said no but still need to confirm it.

while waiting, i tried this
set NODE_TLS_REJECT_UNAUTHORIZED=0

and ran
npm i

no error about the local issuer certificate

then i ran
gulp serve

and workbench successfully opened.

now my followup question is, will NODE_TLS_REJECT_UNAUTHORIZED=0 affect something, what does it do actually? thanks!

[andrewconnell]

Not familiar with that setting... while I see what it does, not something I'd recommend... it wasn't mentioned in the link I shared above so YMMV. Seems a bit risky tho.

[nickpape]

That option is not considered to be secure, but like @andrewconnell said, this is probably an issue with your proxy settings. It seems like the flag just bypasses certificate checks (which is definitely not a great idea). @sitipoi can you double check about the proxy settings with your IT department?

[sitipoi]

im still waiting for their reply if we have a proxy. while waiting, i have few questions

what should I ask them if they said yes, and I am really not sure what to ask them. in the link provided by @andrewconnell

there are 2 commands npm config set proxy http://proxy.company.com:8080 and npm config set https-proxy http://proxy.company.com:8080

should I request them the "proxy URL"? not sure if this is the correct term.

also upon looking at the comments again from the link f rom @andrewconnell , they are providing username and password, _of the proxy?_

sorry to have a lot of questions.

[sitipoi]

just got the answer, we do not have proxy, we just have firewall and bluecoat

[andrewconnell]

@sitipoi http://amibehindaproxy.com ;)

[andrewconnell]

If you don't have a proxy and you are still running into issues, I'd suggest starting over. Delete the project, then run these commands and report the results:

node -v
npm -v
npm list -g --depth=0

Now, create a new project with the Yeoman generator... just a no-JS CSWP.

Run npm install... if there are errors, save and post the WHOLE LOG (either here, or post a link to the gist where you uploaded the log.

Then, run gulp serve. Again... if there's an error, post the WHOLE LOG.

Piece-mail errors don't show everything that's going on and frequently with so much log output in the console, the issue is somewhere else.

[sitipoi]

@andrewconnell tried the link you provided - http://amibehindaproxy.com/ and it is blocked here in our network.

I did a lot of things and unfortunately didnt tracked it. I was able to run gulp serve successfully

I can't even recreate the issue anymore. will update you if I experience it again. thanks for the help!

[NareshSatti]

Hi,

i have successfully deployed sppkg file into my Share point site, after that i can't able to change the host location local to share point server, because when try run gulp server getting gulp server error. please provide solution thanks in advance.

[PrasantiKintali]

Hi,
We will get this error when the module 'sp-build-web' is missing in "node_modules/@microsoft" folder
install sp-build-web module to resolve this issue
command to install : npm install @microsoft/sp-build-web

Also for SPFX make sure that your node js version is >=8.9.4 <9.0.0 || >=10.13.0 <11.0.0