Installation of modbus

hello forum
I have problem to install the node-red contrib modbus . Is there someone else who has the same problems ? How to solve ? my nodered is updated. I'm suspecting a problem with the serial link module..
Any advise ? Thx

It would be helpful if you explained what the problem is.

Hello

I’m getting thsi in the logs:

10 Dec 14:35:03 - [warn] ------------------------------------------
10 Dec 14:35:03 - [warn] gyp WARN install got an error, rolling back install
gyp ERR! configure error
gyp ERR! stack Error: self signed certificate in certificate chain
gyp ERR! stack at TLSSocket.onConnectSecure (_tls_wrap.js:1501:34)
gyp ERR! stack at TLSSocket.emit (events.js:315:20)
gyp ERR! stack at TLSSocket._finishInit (_tls_wrap.js:936:8)
gyp ERR! stack at TLSWrap.ssl.onhandshakedone (_tls_wrap.js:710:12)
gyp ERR! System Windows_NT 10.0.19043
gyp ERR! command "C:\\Program Files\\nodejs\\node.exe" "C:\\Users\\i00204714\\AppData\\Roaming\\npm\\node_modules\\npm\\node_modules\\node-gyp\\bin\\node-gyp.js" "configure" "build"
gyp ERR! cwd C:\Users\i00204714\.node-red\node_modules\fs-ext
gyp ERR! node -v v12.18.3
gyp ERR! node-gyp -v v5.1.0
gyp ERR! not ok
prebuild-install WARN install self signed certificate in certificate chain
gyp WARN install got an error, rolling back install
gyp ERR! configure error
gyp ERR! stack Error: self signed certificate in certificate chain
gyp ERR! stack at TLSSocket.onConnectSecure (_tls_wrap.js:1501:34)
gyp ERR! stack at TLSSocket.emit (events.js:315:20)
gyp ERR! stack at TLSSocket._finishInit (_tls_wrap.js:936:8)
gyp ERR! stack at TLSWrap.ssl.onhandshakedone (_tls_wrap.js:710:12)
gyp ERR! System Windows_NT 10.0.19043
gyp ERR! command "C:\\Program Files\\nodejs\\node.exe" "C:\\Users\\i00204714\\AppData\\Roaming\\npm\\node_modules\\npm\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild"
gyp ERR! cwd C:\Users\i00204714\.node-red\node_modules\@serialport\bindings
gyp ERR! node -v v12.18.3
gyp ERR! node-gyp -v v5.1.0
gyp ERR! not ok
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: [fsevents@2.3.2](mailto:fsevents@2.3.2) (node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for [fsevents@2.3.2](mailto:fsevents@2.3.2): wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: [fs-ext@0.5.0](mailto:fs-ext@0.5.0) (node_modules\fs-ext):
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: [fs-ext@0.5.0](mailto:fs-ext@0.5.0) install: `node-gyp configure build`
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: Exit status 1
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! @serialport/bindings@9.2.8 install: `prebuild-install --tag-prefix @serialport/bindings@ || node-gyp rebuild`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the @serialport/bindings@9.2.8 install script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\i00204714\AppData\Roaming\npm-cache\_logs\2021-12-10T13_35_03_230Z-debug.log

10 Dec 14:35:03 - [warn] ------------------------------------------

Error: Install failed

at C:\Users\i00204714\AppData\Roaming\npm\node_modules\node-red\node_modules\@node-red\registry\lib\installer.js:285:25

at processTicksAndRejections (internal/process/task_queues.js:97:5)

10 Dec 14:35:03 - [error] Error: Install failed

Best regards I Freundliche Grüsse

Patrick Frey

Are you behind a company proxy network or a firewall ?

gyp ERR! stack Error: self signed certificate in certificate chain
gyp ERR! stack at TLSSocket.onConnectSecure (_tls_wrap.js:1501:34)

Dont know much about networking but i was reading about these errors on node-gyp github

People there have been suggesting to run from the command prompt

Set NODE_TLS_REJECT_UNAUTHORIZED=0
or
npm config set strict-ssl false

then try to re-install the node

ps. dont know the implications in security for making those changes