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MODULE_NOT_FOUND on Node-Red 2.2.0 with library version 5.21.0

See original GitHub issue

Problem

(X) bug report => please search github for a similar issue or PR and test Modbus problems with the modbus-serial package before submitting
( ) unexpected behavior => please visit the Wiki before

Current behavior After updating Node-RED to version 2.2.0 in Home Assistant, the module seems to be broken: all the modules report as “MODULE_NOT_FOUND”.

Expected behavior

Minimal reproduction of the problem with instructions

Installed latest version of Home Assistant
Installed the Node-Red addon, which installs Node-Red 2.2.0 with the latest nodered-contrib-modbus (5.21.0)
The module won’t work straight out of the box

Your Environment

Please tell us about your environment:

(X) I am using just the Node-RED package and got modbus-serial package installed with it
( ) I have installed modbus-serial package global from source (using git clone)
( ) I have installed modbus-serial as a global package (using npm i -g)

Yes, modbus-serial is the name but it does all, TCP and Serial. The node-modbus package is just for the Modbus Server node.

Device :
- ( ) macOS: v
- (X) Linux: v
- ( ) Windows: v
- (X) Raspbian: v
- ( ) Other:
  - Name:
  - Version:
Description of the connecting Modbus system:
- Name :
- Version:
- Vendor :
- Link : https://
node-red-contrib-modbus version: v5.21.0

Node: (v14.x) node --version = vX.X.X

Issue Analytics

State:
Created 2 years ago
Reactions:1
Comments:5 (1 by maintainers)

Top GitHub Comments

5reactions

a-n-lundgrencommented, Feb 14, 2022

Added “source-map-support” to the npm_packages configuration parameter, then got this:

15 Feb 00:01:13 - [warn] [node-red-contrib-modbus/Modbus-Flex-Sequencer] Error: Cannot find module ‘line-by-line’ Require stack:

/opt/node_modules/node-red-contrib-modbus/modbus/core/modbus-io-core.js
/opt/node_modules/node-red-contrib-modbus/modbus/modbus-flex-sequencer.js
/opt/node_modules/@node-red/registry/lib/loader.js
/opt/node_modules/@node-red/registry/lib/index.js
/opt/node_modules/@node-red/runtime/lib/nodes/index.js
/opt/node_modules/@node-red/runtime/lib/index.js
/opt/node_modules/node-red/lib/red.js
/opt/node_modules/node-red/red.js

Added line-by-line and everything seems to work. Final configuration that works for me:

npm_packages:
  - source-map-support
  - line-by-line

0reactions

biancodecommented, Feb 15, 2022

I had this packages global and did not see the problem in the test environment. Fixed with V5.21.2.

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