ローカルでは問題ないが、Hugo をCloudflare Pages で自動デプロイするとき、エラーが発生する。

実現したいこと

Cloudflare Pages で、Hugo のサイトを自動デプロイしたい

発生している問題・分からないこと

しかし、npm run build コマンドの処理の途中で

Specified input file ./themes/vnovel/assets/css/main.css does not exist.

となる。

エラーメッセージ

error
113:13:04.625	Cloning repository...
213:13:05.885	From https://xxx (自サイトのURLです)
313:13:05.886	 * branch            44866c0edca4e95589437ce456a9c07da2fcf7aa -> FETCH_HEAD
413:13:05.886	
513:13:07.002	HEAD is now at 44866c0 bug
613:13:07.003	
713:13:07.133	
813:13:07.134	Using v2 root directory strategy
913:13:07.221	Success: Finished cloning repository files
1013:13:08.543	Detected the following tools from environment: hugo@extended_0.123.8, npm@9.6.7, nodejs@18.17.1
1113:13:08.544	Installing hugo extended_0.123.8
1213:13:08.727	* Downloading hugo release extended_0.123.8...
1313:13:10.498	hugo extended_0.123.8 installation was successful!
1413:13:10.972	Installing project dependencies: npm clean-install --progress=false
1513:13:23.307	
1613:13:23.307	added 173 packages, and audited 174 packages in 11s
1713:13:23.307	
1813:13:23.307	47 packages are looking for funding
1913:13:23.308	  run `npm fund` for details
2013:13:23.308	
2113:13:23.309	found 0 vulnerabilities
2213:13:24.478	Executing user command: npm run build
2313:13:25.215	
2413:13:25.215	> vnovel@0.0.1 build
2513:13:25.216	> tailwindcss -i ./themes/vnovel/assets/css/main.css -o ./themes/vnovel/assets/css/style.css && hugo --minify
2613:13:25.216	
2713:13:25.636	Specified input file ./themes/vnovel/assets/css/main.css does not exist.
2813:13:25.653	Failed: Error while executing user command. Exited with error code: 9
2913:13:25.664	Failed: build command exited with code: 1
3013:13:26.672	Failed: error occurred while running build command