0

I have create a truffle project with this command:

truffle unbox react

I have run this commands:

npm install @openzeppelin/contracts 
npm install @openzeppelin/test-helpers
npm install @openzeppelin/test-environment

I have removed all files in tests/ folder. I have kept sample contract SimpleStorage.sol in contracts/ folder.

I have wrote this test and i put it in a file in tests/ folder:

const { BN, expectEvent, expectRevert } = require('@openzeppelin/test-helpers');
const { accounts, contract } = require('@openzeppelin/test-environment');
const SimpleStorage = contract.fromArtifact('SimpleStorage');

describe('SimpleStorage', function () {
   
}

I compile and launch the tests (no error at compile step)

truffe compile
truffle test

i get this error:

Error: Could not find local build/contracts when looking for local artifacts

Any idea ?

4
  • This happens when the build folder is not correctly updated. You can try to clear it and run again 'truffle compile`.
    – clement
    Jan 31 at 10:21
  • I have no build folder...
    – Bob5421
    Jan 31 at 10:24
  • Then create a folder build/contracts.
    – clement
    Jan 31 at 10:36
  • It does not change anything, this folder stay empty. Please note i've create this project with "truffle unbox react" command so there might be a place where compiled contracts are stored
    – Bob5421
    Jan 31 at 10:54
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In truffle to import artifacts use artifacts.require like this:

const SimpleStorage = artifacts.require('SimpleStorage');

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