I'm getting this exception both on my local environment and in CircleCI.
> [email protected] postinstall /home/vallo/project/node_modules/core-js > node -e "try{require('./postinstall')}catch(e){}" npm ERR! Cannot read property 'length' of undefined npm ERR! A complete log of this run can be found in: npm ERR! /home/vallo/.npm/_logs/2020-01-16T20_12_00_564Z-debug.log /home/vallo/.npm/_logs/2020-01-16T20_12_00_564Z-debug.log last lines:
11424 info lifecycle @babel/[email protected]~postinstall: @babel/[email protected]
11425 info lifecycle undefined@undefined~install: undefined@undefined
11426 verbose stack TypeError: Cannot read property 'length' of undefined
11426 verbose stack at _incorrectWorkingDirectory (/home/vallo/.nvm/versions/node/v12.14.0/lib/node_modules/npm/node_modules/npm-lifecycle/index.js:114:60)
11426 verbose stack at /home/vallo/.nvm/versions/node/v12.14.0/lib/node_modules/npm/node_modules/npm-lifecycle/index.js:86:44
11426 verbose stack at /home/vallo/.nvm/versions/node/v12.14.0/lib/node_modules/npm/node_modules/npm-lifecycle/index.js:218:12
11426 verbose stack at callback (/home/vallo/.nvm/versions/node/v12.14.0/lib/node_modules/npm/node_modules/graceful-fs/polyfills.js:295:20)
11426 verbose stack at FSReqCallback.oncomplete (fs.js:159:5)
11427 verbose cwd /home/vallo/project
11428 verbose Linux 5.3.0-26-generic
11429 verbose argv "/home/vallo/.nvm/versions/node/v12.14.0/bin/node" "/home/vallo/.nvm/versions/node/v12.14.0/bin/npm" "ci"
11430 verbose node v12.14.0
11431 verbose npm v6.13.6
11432 error Cannot read property 'length' of undefined
11433 verbose exit [ 1, true ]
This is my package.json:
{ "private": true, "scripts": { "install": "npx babel-node scripts/npm/install.js", "test": "npx babel-node scripts/npm/test.js", "lambda-test": "lambda/serverUnit.sh", "lint": "node_modules/.bin/eslint .", "flow": "flow; test $? -eq 0 -o $? -eq 2" }, "devDependencies": { "@babel/cli": "^7.4.4", "@babel/core": "^7.4.4", "@babel/node": "^7.2.2", "@babel/plugin-proposal-object-rest-spread": "^7.5.5", "@babel/plugin-transform-modules-commonjs": "^7.4.4", "@babel/plugin-transform-runtime": "^7.4.4", "@babel/polyfill": "^7.4.4", "@babel/preset-env": "^7.4.4", "@babel/preset-flow": "^7.0.0", "@babel/register": "^7.4.4", "@sanjo/jasmine-expect": "^1.0.1", "@sanjo/jasmine-spy": "^1.0.1", "@share911/babel-plugin-root-slash-import": "^1.2.0", "aws-sdk": "^2.521.0", "babel-eslint": "^10.0.3", "babel-loader": "^8.0.5", "babel-plugin-meteor-imports": "^1.0.3", "babelify": "^10.0.0", "browserify": "^16.2.3", "chai": "^4.2.0", "commander": "2.9.0", "eslint": "^6.3.0", "eslint-config-standard": "^14.1.0", "eslint-plugin-flowtype": "^4.3.0", "eslint-plugin-import": "^2.18.2", "eslint-plugin-node": "^10.0.0", "eslint-plugin-promise": "^4.2.1", "eslint-plugin-react": "^7.14.3", "eslint-plugin-standard": "^4.0.1", "flow-bin": "^0.106.3", "jsdom": "^15.1.1", "jsdom-global": "^3.0.2", "json-loader": "^0.5.4", "karma": "^4.1.0", "karma-browserify": "^6.0.0", "karma-chrome-launcher": "^2.2.0", "karma-mocha": "^1.3.0", "meteor": "./modules/meteor/", "meteor-promise": "^0.8.0", "mocha": "^6.1.4", "phantomjs-prebuilt": "^2.1.15", "proxyquire": "^1.7.10", "proxyquireify": "^3.2.0", "serverless": "^1.51.0", "sinon": "^7.3.2", "standard": "^12.0.1", "tingodb": "^0.6.1", "wallabify": "0.0.14", "watchify": "^3.11.1", "webpack": "^4.30.0", "webpack-node-externals": "^1.7.2" }, "dependencies": { "@babel/runtime": "^7.4.5", "aws-xray-sdk-core": "^2.3.5", "chai-as-promised": "^7.1.1", "json-to-pretty-yaml": "^1.2.2", "obj-resolve": "^1.0.4", "winston": "^3.2.1" } } I'm running node 12.14.0 and npm 6.13.6
nameproperty to my package.json. This is a bug from NPM I guess. Answer posted.