Error: No deployment found for: MockV3Aggregator

[blaynejosh]

Hello guys, i am getting the error:
Error: No deployment found for: MockV3Aggregator

Here is my deploy script:

const { networkConfig, developmentChains } = require("../helper-hardhat-config")
const { network } = require("hardhat")
const { verify } = require("../utils/verify")

module.exports = async ({ getNamedAccounts, deployments }) => {
    const { deploy, log } = deployments
    const { deployer } = await getNamedAccounts()
    const chainId = network.config.chainId

    // const ethUsdPriceFeedAddress = networkConfig[chainId]["ethUsdPriceFeed"]
    let ethUsdPriceFeedAddress
    if (developmentChains.includes(network.name)) {
        const ethUsdAggregator = await deployments.get("MockV3Aggregator")
        ethUsdPriceFeedAddress = ethUsdAggregator.address
    } else {
        ethUsdPriceFeedAddress = networkConfig[chainId]["ethUsdPriceFeed"]
    }

    const args = [ethUsdPriceFeedAddress]
    const fundMe = await deploy("FundMe", {
        from: deployer,
        args: args,
        log: true,
        waitConfirmations: network.config.blockConfirmations || 1,
    })
    if (
        !developmentChains.includes(network.name) &&
        process.env.ETHERSCAN_API_KEY
    ) {
        await verify(fundMe.address, args)
    }
    log("------------------------------------------------------------------")
}
module.exports.tags = ["all", "fundMe"]

Also, here is my unit test code, I get the error whenever i run the solidity yarn hardhat test
the test code:

const { assert } = require("chai")
const { deployments, ethers, getNamedAccounts } = require("hardhat")

describe("FundMe", async function () {
    let fundMe
    let deployer
    let mockV3Aggregator
    beforeEach(async function () {
        deployer = (await getNamedAccounts()).deployer
        await deployments.fixture(["all"])
        fundMe = await ethers.getContract("FundMe", deployer)
        mockV3Aggregator = await ethers.getContract(
            "MockV3Aggregator",
            deployer
        )
    })
    describe("constructor", async function () {
        it("sets the aggregator addresses correctly", async function () {
            const response = await fundMe.priceFeed()
            assert.equal(response, mockV3Aggregator.address)
        })
    })
})

Please I need help

[RoboCrypter]

@blaynejosh : Change this line in your deploy script,

From this : const ethUsdAggregator = await deployments.get("MockV3Aggregator")

To this : const ethUsdAggregator = await ethers.getContract("MockV3Aggregator")

And also, Import ethers from hardhat on top!

And for testing run this command : yarn hardhat test

Let me know, If it resolves your issue!

If it didn't resolve your issue,

• Then check your mocks script If you deployed your MockV3Aggregator contract correctly.
• And also check, If you have MockV3Aggregator in your contracts/test folder!

[blaynejosh]

Alright i will...Thank you

[blaynejosh]

Here is my mocks script:

const { network } = require("hardhat")
const {
    developmentChains,
    DECIMALS,
    INITIAL_ANSWER,
} = require("../helper-hardhat-config")

module.exports = async ({ getNamedAccounts, deployments }) => {
    const { deploy, log } = deployments
    const { deployer } = await getNamedAccounts()
    const chainId = network.config.chainId

    if (developmentChains.includes(network.name)) {
        log("Local network detected, deploying mocks...")
        await deploy("MockV3Aggregator", {
            from: deployer,
            args: [DECIMALS, INITIAL_ANSWER],
            log: true,
        })
        log("Mocks deployed!")
        log("-----------------------------------------------------")
    }
}

module.exports.tags = ("all", "mocks")

It looks right, but please check for me
Thank you

[RoboCrypter]

@blaynejosh : Correct this line in your mocks script,

From this : module.exports.tags = ("all", "mocks")

To this : module.exports.tags = ["all", "mocks"]

Should be [ ] not ( )

It should fix your issue!

[blaynejosh]

Yes it did...thank you!