{
  "name": "tasks-functions",
  "version": "0.0.1",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "mocha",
    "start": "func host start --cors *"
  },
  "author": "",
  "license": "MIT",
  "dependencies": {
    "guid": "0.0.12",
    "mongodb": "^2.2.31",
    "supertest": "^3.0.0",
    "botbuilder": "^3.7.0",
    "request": "^2.81.0",
    "restify": "^4.3.0"
  },
  "devDependencies": {
    "chai": "^4.1.2",
    "mocha": "^3.5.3",
    "supertest": "^3.0.0",
    "azure-functions-core-tools":"~1.0.4"
  }
}

{
  "name": "tasks-functions",
  "version": "0.0.1",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "mocha",
    "start": "func host start --cors *"
  },
  "author": "",
  "license": "MIT",
  "dependencies": {
    "guid": "0.0.12",
    "mongodb": "^2.2.31",
    "supertest": "^3.0.0",
    "botbuilder": "^3.7.0",
    "request": "^2.81.0",
    "restify": "^4.3.0"
  },
  "devDependencies": {
    "chai": "^4.1.2",
    "mocha": "^3.5.3",
    "supertest": "^3.0.0",
    "azure-functions-core-tools": "core"
  }
}

Update azure-functions-core-tools version to @core
Update azure-functions-core-tools version to @core
