Introduction

I haven't used Magento a whole lot in my career and this was my first time setting up a Magento website from scratch. After getting all the dependencies setup, including Elasticsearch, I tried to install the application. This is where I was encountering this error:

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So for the next couple hours I searched for answers. But nothing I tried worked until I came across this answer on Stack Exchange. After following the steps laid out in this answer the installation finally completed without any errors. Here are the steps:

Install the official Magento 2 Elasticsearch 8 Module

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Run the install command and disable modules

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Re-enable the modules, except Magento_OpenSearch

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Change default search engine to Elasticsearch 8

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Start Magento setup

The ElasticSearch 8 service should be running while starting the setup again.

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Rerun full install command

After all that, I reran the install command from the Magento docs and it ran without any issues!

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Final Thoughts

I was pretty close to curling up in a ball and crying before finding Tu Van's answer. So thank you to him!