Uniswap query lookup

[mtangular]

When the code reaches getPairsByIndexRange, I am getting the following error:
Error: Transaction reverted: function call to a non-contract account

I tried copying the same UniswapQuery code from Etherscan and pasting into my VSCode and running it as a separate contract and test with Hardhat but still getting the same error. But when I enter the 3 parameters in the Read Contract section on Etherscan I successfully get all the pairs.

Does this code from the repo only work on Mainnet or Mainnet-fork? Or should it still work on localhost (for example npx hardhat node)?

With the environment variable what does the Readme note below mean:
ETHEREUM_RPC_URL - Ethereum RPC endpoint. Can not be the same as FLASHBOTS_RPC_URL

I am using localhost:8545 as the ETHEREUM_RPC_URL (through npx hardhat node). But what is FLASHBOTS_RPC_URL? There is no such environment variable inside the code.

[TenzinCHW]

I found the answer. Only the Uniswap factory address exists on the goerli testnet, so when you try to access pair data from any of the other market factory addresses, the contract will fail. No clue what a workaround would be as I'm fairly new to this myself.

[dhensen]

You need to find that deployed contract address on Goerli. I am currently in the process of making this run on Goerli, just to understand this whole process and make all most mistakes on testnet before going to mainnet with this.
Check out my fork, I already fixed this issue there.