Hi to all, Sorry if this topic is already solved, i was looking for the solution but couldnt find one. I am trying to install node " node-red-contrib-serial-modbus" but unsuccessfully. Below is the error i get. Any help is much appreciated. C:\Users\vkrtolica>npm install node-red-contrib-serial…

I tried running npm install --global windows-build-tools but again it cant do it. C:\Windows\System32>npm install --global windows-build-tools npm warn deprecated inflight@1.0.6: This module is not supported, and leaks memory. Do not use it. Check out lru-cache if you want a good and tested way to …

[image] vlado.krtolica: C:\Users\vkrtolica>npm install node-red-contrib-serial-modbus Why are you installing that? It is very seriously out of date. The better & more up-to-date package is node-red-contrib-modbus You are NOT in the right directory. You are in the user directory. Typically i…

Hi Steve, My goal is to use node-red app as Modbus RTU master, to poll data from some ModbusRTU slave devices. I understood that node-red-contrib-modbus can act only as ModbusRTU slave. I did also installation of Node.js with selected Automatically install the necessary tools, still the result is…

[image] vlado.krtolica: I understood that node-red-contrib-modbus can act only as ModbusRTU slave. It can be a server/slave or a client/master. The most typical use for node-red-contrib-modbus is to read values from modbus server/slave. [image] vlado.krtolica: I run command prompt as Ad…

I selected Run as Administrator to run the command prompt. Since you said i could use node-red-contrib-modbus to act as ModbusRTU master and read the data from slaves, I will investigate this option further. I thought it can act only as a slave. Thanks a lot for you for your assistance Steve! …

[image] vlado.krtolica: I run command prompt as Administrator. You should not be doing that for Windows installations.

[image] TotallyInformation: [image] vlado.krtolica: I run command prompt as Administrator. You should not be doing that for Windows installations By default, npm global installation require admin privileges. but for the local .node-red installs, no, the OP should not. The reason the O…

[image] Steve-Mcl: By default, npm global installation require admin privileges. It is different in Windows: [image] You don't need and should not typically run a global npm install from an admin PowerShell.

[image] TotallyInformation: [image] Steve-Mcl: By default, npm global installation require admin privileges. It is different in Windows: Ah, yes. I was mixing it up with linux. On systems I used to look after, we moved npm global to be truly global (and protected)

[image] Steve-Mcl: Ah, yes. I was mixing it up with linux. On systems I used to look after, we moved npm global to be truly global (and protected) Indeed, and you do need sudo for a global install on a properly configured Linux/MacOS box. Doing so on Windows will likely result in odd permissi…

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Cant install node-red-contrib-serial-modbus on Windows

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TotallyInformation 19 March 2025 11:08 7

You should not be doing that for Windows installations.

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Cant install node-red-contrib-serial-modbus on Windows

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