'SvelteKit: 'npm run build' error in AWS CodeBuild

I have a SvelteKit app that I'm deploying using AWS CodePipeline.

My pipeline gets triggered on pushes to CodeCommit. But CodeBuild fails with the following error messages:

npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] build: `svelte-kit build`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the [email protected] build script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
[Container] 2021/11/30 14:45:25 Command did not exit successfully npm run build exit status 1

I tried cloning the repository and building it in a clean environment on my PC and it builds without any errors. I cannot reproduce the problem outside of CodeBuild.

buildspec.yml

    version: 0.2
    
    phases: 
        install:
            commands:
                - echo "Entered the install phase..."
                - npm install
        pre_build:
            commands: 
                - echo "Entered the pre_build phase..."
        build:
            commands:
                - echo "Entered the build phase..."
                - echo "Build started on `date`"
                - npm run build
        post_build:
            commands:
                - echo "Entered the post_build phase..."
                - echo "Build completed on `date`"
    
    artifacts:
      files:
        - '**/*'
      name: project-title

package.json

{
  "name": "project-title",
  "version": "0.0.1",
  "scripts": {
    "dev": "svelte-kit dev",
    "build": "svelte-kit build",
    "preview": "svelte-kit preview",
    "lint": "prettier --ignore-path .gitignore --check --plugin-search-dir=. . && eslint --ignore-path .gitignore .",
    "format": "prettier --ignore-path .gitignore --write --plugin-search-dir=. ."
  },
  "devDependencies": {
    "@sveltejs/adapter-static": "^1.0.0-next.21",
    "@sveltejs/kit": "next",
    "autoprefixer": "^10.4.0",
    "eslint": "^7.32.0",
    "eslint-config-prettier": "^8.3.0",
    "eslint-plugin-svelte3": "^3.2.1",
    "prettier": "^2.4.1",
    "prettier-plugin-svelte": "^2.4.0",
    "svelte": "^3.42.6",
    "tailwindcss": "^2.2.19"
  },
  "type": "module"
}

svelte.config.js

import adapter from '@sveltejs/adapter-static';

export default {
    kit: {
        adapter: adapter({
            // default options are shown
            pages: 'build',
            assets: 'build',
            fallback: null
        })
    }
};

CodeBuild project environment: