Question

TypeError: Cannot read properties of undefined (reading toString ) at C:UsersNeeda AnsariDesktopReact Projectsmyjewel ode_moduleswebpacklibcachePackFileCacheStrategy.js:1243:53
at async Promise.all (index 42)

Node.js v18.15.0[entergraph here (

如何解决这一错误? 错误是什么

store(identifier, etag, data) {
        if (this.readonly) return Promise.resolve();
        // the error is in the line below
        return this._getPack().then(pack => {
            pack.set(identifier, etag === null? null : etag.toString(), data);
        });
    }

Answer 1

try

etag === null || undefined ? null : etag.toString()

Answer 2

try typeof etag === undefined ? null : etag.toString()

Answer 3

There is no sense in editing PackFileCacheStrategy.js, as it is node_modules file and would be overwritten. Try following solutions from this discussion https://github.com/webpack/webpack/discussions/17101. For me upgrading semantic-ui-css worked.

Answer 4

I imported image in a css file of React App. That s why it was showing error. Removing the line used for importing the image, solved my error.

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