Issue with webcomponents-lite.js file

Encountering this particular error message in the console while attempting to run the application:

webcomponents-lite.js:64Uncaught TypeError: Cannot read property 'getAttribute' of null
    at webcomponents-lite.js:64
    at Object.549 (webcomponents-lite.js:74)
    at __webpack_require__ (bootstrap a218042…:52)
    at Object.1242 (webcomponents.bundle.js:8)
    at __webpack_require__ (bootstrap a218042…:52)
    at webpackJsonpCallback (bootstrap a218042…:23)
    at webcomponents.bundle.js:2

This is the method I am using to load the script with webpack:

entry: {
               'polyfills': './src/polyfills.browser.ts',
               'vendor': './src/vendor.browser.ts',
               'main': './src/main.browser.ts',
               'webcomponents': './bower_components/webcomponentsjs/webcomponents-lite.js',
 },

This issue arises when using the webpack entry object, yet it functions without errors if I include the following directly in my index.html page:

<script src="/webcomponentsjs/webcomponents-lite.js"></script>

Has anyone encountered and resolved a similar problem?

EDIT::::


Both my coworker and I have identical versions of bower_components and node_components, having uninstalled and reinstalled everything. Strangely, his setup works whereas mine did not. Upon inspecting the bower_components directory, we noticed discrepancies in files and folders between our setups (for reasons unknown). After exchanging the bower_components folder from their working project to mine and replacing my existing files with theirs, the application functioned correctly.

Answer №1

It appears that the version of webcomponents-lite.js you are using is incorrect. Following @Bobort's advice, the current branch may not be functional. Please uninstall your current version and then download and install the latest release.

You can also obtain it through bower:

> bower install -S webcomponentsjs

There could be a discrepancy between the version you are importing in your HTML tag and the one you are utilizing in Webpack.

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