{"id":1392,"date":"2025-10-08T12:49:00","date_gmt":"2025-10-08T10:49:00","guid":{"rendered":"https:\/\/nilsrooijmans.com\/daily\/?p=1392"},"modified":"2025-10-09T09:05:47","modified_gmt":"2025-10-09T07:05:47","slug":"when-gpt-returns-invalid-code-how-to-fix-it","status":"publish","type":"post","link":"https:\/\/nilsrooijmans.com\/daily\/when-gpt-returns-invalid-code-how-to-fix-it","title":{"rendered":"When GPT returns invalid code: how to fix it"},"content":{"rendered":"\n

Long-time member of the list and script fanatic Alberto Esteves Correia (name shared with permission) asked:<\/p>\n\n\n\n

\n

“Some people think GPT will do everything for them, even if they know nothing about programming or scripting.<\/em><\/p>\n\n\n\n

When GPT returns invalid code, how to get out of it?”<\/em><\/p>\n<\/blockquote>\n\n\n\n

It’s true: most LLMs still hallucinate a lot when it comes to Google Ads Scripts and often return code that is broken.<\/p>\n\n\n\n

Here’s how to fix that and learn some things along the way (works for any LLM):<\/p>\n\n\n\n

1. Assign ChatGPT the role of a Google Ads Script developer tasked with debugging the code.
2. Copy-paste the code. Then, ask ChatGPT to explain the code that shows the issue.
3. Copy-paste the error. Then, ask ChatGPT to explain the error message.
4. Ask ChatGPT to fix the code and explain the fix.
5. If a new error message pops up: rinse and repeat steps 2, 3, and 4.
6. If the same error message pops up:\u00a0
\u00a0 6.1: Ask ChatGPT to find supporting documentation on the Google Ads Scripts Developer documentation site.
\u00a0 6.2: Copy-paste the documentation into ChatGPT.
\u00a0 6.3: Repeat steps 2, 3, and 4.

If all that doesn’t work, post your issue on the Google Ads Scripts Developer Forum: https:\/\/groups.google.com\/g\/adwords-scripts<\/a><\/p>\n\n\n\n

Want to learn the exact prompts I use to get the most out of ChatGPT script development?<\/strong><\/p>\n\n\n\n

Sign up for my next 5-Day ChatGPT and Google Ads Scripts Challenge.<\/p>\n\n\n\n

Link:\u00a0https:\/\/nilsrooijmans.com\/5-day-chatgpt-and-google-ads-scripts-challenge-2025\/<\/a><\/p>\n\n\n\n

– Nils<\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

Long-time member of the list and script fanatic Alberto Esteves Correia (name shared with permission) asked: “Some people think GPT will do everything for them, even if they know nothing about programming or scripting. 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