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Error occured: Couldn't find ethers-v5.

See original GitHub issue

Hi guys. I try use this library in my project and I get this error:

npm run build-contracts-src

> api@0.0.1 build-contracts-src /home/damian/Documents/work/kargain-nft/API
> typechain --target=ethers-v5 --out-dir src/contracts ../Contract/bin/contracts/Kargain.json

Error occured:  Couldn't find ethers-v5. Tried loading: @typechain/ethers-v5, typechain-target-ethers-v5, /home/damian/Documents/work/kargain-nft/API/ethers-v5.
Perhaps you forgot to install @typechain/ethers-v5?
Run with --show-stack-traces to see the full stacktrace

my package.json

{
  "name": "api",
  "version": "0.0.1",
  "description": "",
  "author": "",
  "private": true,
  "license": "UNLICENSED",
  "scripts": {
    "prebuild": "rimraf dist",
    "build": "nest build",
    "build-contracts-src": "typechain --target=ethers-v5 --out-dir src/contracts ../Contract/bin/contracts/Kargain.json",
    "format": "prettier --write \"src/**/*.ts\" \"test/**/*.ts\"",
    "start": "nest start",
    "start:dev": "nest start --watch",
    "start:debug": "nest start --debug --watch",
    "start:prod": "node dist/main",
    "lint": "eslint \"{src,apps,libs,test}/**/*.ts\" --fix",
    "test": "jest",
    "test:watch": "jest --watch",
    "test:cov": "jest --coverage",
    "test:debug": "node --inspect-brk -r tsconfig-paths/register -r ts-node/register node_modules/.bin/jest --runInBand",
    "test:e2e": "jest --config ./test/jest-e2e.json"
  },
  "dependencies": {
    "@nestjs/common": "^7.5.1",
    "@nestjs/core": "^7.5.1",
    "@nestjs/platform-express": "^7.5.1",
    "@nestjs/swagger": "^4.8.0",
    "dotenv": "^10.0.0",
    "ethers": "^5.3.1",
    "reflect-metadata": "^0.1.13",
    "rimraf": "^3.0.2",
    "rxjs": "^6.6.3",
    "swagger-ui-express": "^4.1.6",
  },
  "devDependencies": {
    "@nestjs/cli": "^7.5.1",
    "@nestjs/schematics": "^7.1.3",
    "@nestjs/testing": "^7.5.1",
    "@typechain/ethers-v5": "^4.0.0",
    "@types/express": "^4.17.8",
    "@types/jest": "^26.0.15",
    "@types/node": "^14.14.6",
    "@types/supertest": "^2.0.10",
    "@typescript-eslint/eslint-plugin": "^4.6.1",
    "@typescript-eslint/parser": "^4.6.1",
    "eslint": "^7.12.1",
    "eslint-config-prettier": "^6.15.0",
    "eslint-plugin-prettier": "^3.1.4",
    "jest": "^26.6.3",
    "prettier": "^2.1.2",
    "supertest": "^6.0.0",
    "ts-jest": "^26.4.3",
    "ts-loader": "^8.0.8",
    "ts-node": "^9.0.0",
    "tsconfig-paths": "^3.9.0",
    "typechain": "^5.0.0",
    "typescript": "^4.0.5"
  },
  "jest": {
    "moduleFileExtensions": [
      "js",
      "json",
      "ts"
    ],
    "rootDir": "src",
    "testRegex": ".*\\.spec\\.ts$",
    "transform": {
      "^.+\\.(t|j)s$": "ts-jest"
    },
    "collectCoverageFrom": [
      "**/*.(t|j)s"
    ],
    "coverageDirectory": "../coverage",
    "testEnvironment": "node"
  }
}

Issue Analytics

State:
Created 2 years ago
Comments:10 (4 by maintainers)

Top GitHub Comments

2reactions

sc0Vucommented, Jun 16, 2021

I have same issue after update to latest version of typechain (upgrade from v4 to v5). And I also installed @typechain/ethers-v5.

The weird thing is I fix this issue with install @typechain/ethers-v5@7.0.1, which is the latest version. Not sure what happened, try to install @typechain/ethers-v5@7.0.1.

1reaction

aspierscommented, Feb 15, 2022

In case anyone comes here looking for a solution and you are using monorepos, check out #620.

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