How to add Vertex Google Gemini 3 Flash Preview

Questions
1

I tried adding gemini-3-flash-preview from my vertex and it thew errors. I’m assuming its not a supported model yet? Is that the case?

Also tried gemini-3-pro-preview

Error: Cannot read properties of undefined (reading ‘Symbol(Symbol.asyncIterator)’)

If that is so, how long does it usually take to add new models?

I am running self-hosted n8n.

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2

it’s an region issue. Gemini3 only supports global so I found a way to workaround this. don’t use drop down to select the region. just switch expression and input global and it will be working .

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image1896×154 5.9 KB

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4

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