I am in the middle of trying to implement a build/deploy job in Jenkins by which the latest version of source code is pulled from git, built and then deployed to GCP. So far i am able to retrieve the lastest code from GIT but have run into issues when tyring to build. The application being built/deployed is an Angular 7 web site using npm for package management. So the normal steps would be to run npm install to make sure the packages are installed and then ng build -- prod to build the app. My issue is that the version of npm/nodejs in the master node is out of date and not compatable with Angular 7. Even just trying the command to gert the current ng version fails:

+ /usr/bin/ng v
You are running version v8.1.4 of Node.js, which is not supported by Angular CLI v6.
The official Node.js version that is supported is 8.9 and greater.

I added a call to npm version to check the npm version is is trying to use:

+ echo current user
current user
+ whoami
+ npm -v

To investigate the issue i used putty to remote onto the jenkins box and ran npm -v and ng v to see what is installed and get:

jenkins@****-int1:~$ npm -v

Which is different to that reported by npm -v in the shell script.

jenkins@****:~$ ng v

     _                      _                 ____ _     ___
    / \   _ __   __ _ _   _| | __ _ _ __     / ___| |   |_ _|
   / △ \ | '_ \ / _` | | | | |/ _` | '__|   | |   | |    | |
  / ___ \| | | | (_| | |_| | | (_| | |      | |___| |___ | |
 /_/   \_\_| |_|\__, |\__,_|_|\__,_|_|       \____|_____|___|

Angular CLI: 7.1.4
Node: 11.6.0
OS: linux x64

Package                      Version
@angular-devkit/architect    0.11.4
@angular-devkit/core         7.1.4
@angular-devkit/schematics   7.1.4
@schematics/angular          7.1.4
@schematics/update           0.11.4
rxjs                         6.3.3
typescript                   3.1.6

So it should have nodejs 11.6, i ran node -v to double check:

jenkins@****:~$ node -v

BUT if i run nodejs -v i get:

jenkins@****:~$ nodejs -v

I thought that node and nodejs were the same thing? so why would i have two different versions installed and how to i fix this?

To double check what my Jenkins script is using i added a call to node -v in the script and as expected it reports the older version:

+ node -v

I should add that i'm not a devops person, i'm C# back end developer who's been lumbered with sorting this out due staff changes. I know very little about linux, Jenkins or this stuff in general :(

I tried to update the node installation via the Jenkins Shell script using

sudo npm cache clean -f
sudo npm install -g n
sudo n stable

But these were refused due to access rights (no sudo pwd i presume) and i don't know if that would've fixed the issue anyway.

Any help would be much appreciated....

  • I think the difference in node versions you can see is because the node is installed to Jenkins host using 1. Linux terminal and 2. node plugin in Jenkins. Maybe, try to update the Jenkins plugin for node or Angularjs. Beware of making changes in the production server carefully. – KlwntSingh Jan 6 at 23:03

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