nodejs-maven-plugin bundles npm 1.4.9 that seems to ignore npm install's --prefix directory


The plugin is configured with these settings:

1 2 3 <npmVersion>6.4.1</npmVersion> <nodeJsVersion>10.15.2</nodeJsVersion> <nodeJsDirectory>${project.basedir}/nodejsplugin-cache</nodeJsDirectory>

Running under Windows, the following happens:

The plugin downloads npm 1.4.9. It uses npm 1.4.9 to install the npm specified in the pom.xml, i.e. 6.4.1.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 [INFO] --- nodejs-maven-plugin:2.0.4:run (default-cli) @ nolio-core-ui --- [INFO] Installing specified npm version 6.4.1 [INFO] Running process: C:\project\nodejsplugin-cache\v-10.15.2\node.exe C:\project\nodejsplugin-cache\v-10.15.2\npm\bin\npm-cli.js install --prefix C:\project\nodejsplugin-cache npm@6.4.1 [INFO] [nodejs] npm http GET [INFO] [nodejs] npm http 304 [WARNING] [nodejs] npm WARN prefer global npm@6.4.1 should be installed with -g [WARNING] [nodejs] npm WARN package.json path-is-inside@1.0.2 No README data [WARNING] [nodejs] npm WARN package.json sorted-object@2.0.1 No README data [WARNING] [nodejs] npm WARN package.json punycode@1.4.1 punycode is also the name of a node core module. [WARNING] [nodejs] npm WARN package.json string_decoder@1.1.1 string_decoder is also the name of a node core module. [INFO] [nodejs] npm@6.4.1 node_modules\npm [INFO] Running process: C:\project\nodejsplugin-cache\v-10.15.2\node.exe C:\project\nodejsplugin-cache\node_modules\npm\bin\npm-cli.js install --prefix C:\project\nodejsplugin-cache\ grunt-cli [INFO] [nodejs] internal/modules/cjs/loader.js:583 [INFO] [nodejs] throw err; [INFO] [nodejs] ^ [INFO] [nodejs] [INFO] [nodejs] Error: Cannot find module 'C:\project\nodejsplugin-cache\node_modules\npm\bin\npm-cli.js' [INFO] [nodejs] at Function.Module._resolveFilename (internal/modules/cjs/loader.js:581:15) [INFO] [nodejs] at Function.Module._load (internal/modules/cjs/loader.js:507:25) [INFO] [nodejs] at Function.Module.runMain (internal/modules/cjs/loader.js:742:12) [INFO] [nodejs] at startup (internal/bootstrap/node.js:283:19) [INFO] [nodejs] at bootstrapNodeJSCore (internal/bootstrap/node.js:743:3) [INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------

What happens is, the plugin tries to install the new npm into --prefix directory, but without the -g option, the old npm doesn't install where you tell it to, it will instead walk up the hierarchy looking for a node_modules/ directory or a package.json file.

Branching from this commit:

1 2 3 commit 56810260cfe6ea8d7b9bb573ecff1eaba7fd2bff Author: sseifert <> Date: Wed Feb 8 23:15:46 2017 +0100

I changed

1 2 3 npmInstallTask.setArguments(new String[] { "--prefix", nodeJsDirectory.getAbsolutePath(), "-g", "npm@" + npmVersion });

To pass the "-g" argument and now it works as expected.





Stefan Seifert


Yuri Geinish




Fix versions

Affects versions

Node.js Maven Plugin 2.0.4