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Discussion on: The Complete Guide to Full Stack Ethereum Development

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Niroshan Sooriyakumar • Edited

Not sure if this will help but I had the same error while working on my own project. I used this blog post as a starting point and my code is slightly different but I was also getting this error on a read-only transaction. The code was working the day before and I was really consued.

After some failed googling, I saw that metamask was still pointing to mainnet (I had switched away from localhost to mainnet later that day). After switching back to localhost things just started working!

Not sure if this will help your particular issue but thought I'd post this here if someone else is also googling this error. Hopes this helps someone out there!

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