Sending transaction to a Web3 contract object in Truffle test produces 'file import callback not supported'

External question — Ethereum Stack Exchange Author: slider Original post: https://ethereum.stackexchange.com/questions/83999 License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/ Adaptation: HTML converted to plain text; contact email addresses removed. I need to send a state-changing transaction to a Web3 contract object in my Truffle tests, which is hitting a fork of Kovan in my local ganache chain ( ganache-cli --fork https://kovan.infura.io/v3/[api_key]@latest ). The contract I'm sending a transaction to is a Web3 contract object of an already-deployed contract on Kovan. const theirContractABI = require("./abi/TheirContract"); const theirContractAddress = "0x123456789..."; const theirContract = new web3.eth.Contract(theirContractABI, theirContractAddress); contract("MyContract", accounts => { it("can update a TheirContract property", async () => { await theirContract.methods.someFunction().send({ from: accounts[0] }); ... assert(some condition); }); } When I run this specific test, all I get is Error: Returned error: VM Exception while processing transaction: revert , and it's not produced by a falsified require statement. So, I tried using @0x/sol-trace . When I run yarn trace , I get error InitializableAdminUpgradeabilityProxy.sol:3:1: ParserError: Source "/Users/slider/Desktop/myProject/node_modules/@openzeppelin/upgrades/contracts/upgradeability/BaseAdminUpgradeabilityProxy.sol" not found: File import callback not supported import './BaseAdminUpgradeabilityProxy.sol'; ^------------------------------------------^ and error InitializableAdminUpgradeabilityProxy.sol:4:1: ParserError: Source "/Users/slider/Desktop/myProject/node_modules/@openzeppelin/upgrades/contracts/upgradeability/InitializableUpgradeabilityProxy.sol" not found: File import callback not supported import './InitializableUpgradeabilityProxy.sol'; ^------------------------------------------^ TheirContract imports @openzeppelin/upgrades/contracts/upgradeability/InitializableAdminUpgradeabilityProxy.sol , but I have the @openzeppelin/upgrades package installed, and BaseAdminUpgradeabilityProxy.sol & InitializableUpgradeabilityProxy.sol are indeed located in the same file within node_modules as InitializableAdminUpgradeabilityProxy.sol . So, I'm fairly unsure of where the issue stems from and how to resolve it. Would greatly appreciate a point in the right direction.

External answer — Ethereum Stack Exchange Author: slider Original post: https://ethereum.stackexchange.com/a/84017 License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/ Adaptation: HTML converted to plain text; contact email addresses removed. Turns out, all I had to do was specify a gasLimit in my send() method! From this: await theirContract.methods.someFunction().send({ from: accounts[0] }); To this: await theirContract.methods.someFunction().send({ from: accounts[0], gasLimit: 800000 }); And I can use the Web3 contract object to do so, which is the easiest way to reference an already-deployed contract that I'm currently aware of, because you can just grab the ABI and address from EtherScan, and fork mainnet/Kovan/etc to your local ganache chain!