Nx: UnhandledPromiseRejectionWarning: TypeError: tasksRunner is not a function

[4kochi]

Prerequisites

• [x] I am running the latest version
• [x] I checked the documentation (nx.dev) and found no answer
• [x] I checked to make sure that this issue has not already been filed
• [x] I'm reporting the issue to the correct repository (not related to React, Angular or any dependency)

Expected Behavior

Task runner works fine.

Current Behavior

Task runner does not work

Steps to Reproduce

I updated an existing nx workspace from 8.x to 9.1.0. Now i cannot run any task.

The option for caching is set in the nx.json

"tasksRunnerOptions": {
    "default": {
      "runner": "@nrwl/workspace/src/tasks-runner/tasks-runner-v2",
      "options": {
        "cacheableOperations": ["build", "test", "lint"]
      }
    }
  }

With runner v2 there is the error (See below). With task runner v1 it works fine. But i think then the caching doesn't work, but that's fine.

Context

>  NX  Report complete - copy this into the issue template

  @nrwl/angular : 9.1.1
  @nrwl/cli : 9.1.1
  @nrwl/cypress : 9.1.1
  @nrwl/eslint-plugin-nx : Not Found
  @nrwl/express : Not Found
  @nrwl/jest : 9.1.1
  @nrwl/linter : Not Found
  @nrwl/nest : Not Found
  @nrwl/next : Not Found
  @nrwl/node : Not Found
  @nrwl/react : Not Found
  @nrwl/schematics : Not Found
  @nrwl/tao : 9.1.1
  @nrwl/web : Not Found
  @nrwl/workspace : 9.1.1
  typescript : 3.7.5

Failure Logs

runner undefined
nxJson.tasksRunnerOptions {
  default: {
    runner: '@nrwl/workspace/src/tasks-runner/tasks-runner-v2',
    options: { cacheableOperations: [Array] }
  }
}

tasksRunner { tasksRunnerV2: [Function] } object
(node:23884) UnhandledPromiseRejectionWarning: TypeError: tasksRunner is not a function
    at Object.<anonymous> (/Users/pitti/web/actaport-ui v9/node_modules/@nrwl/workspace/src/tasks-runner/run-command.js:37:9)
    at Generator.next (<anonymous>)
    at fulfilled (/Users/pitti/web/actaport-ui v9/node_modules/@nrwl/workspace/src/tasks-runner/run-command.js:5:58)
(node:23884) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
(node:23884) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

[FrozenPandaz]

Thanks for reporting this issue! Sorry for the inconvenience.

We will have a fix shortly.

[4kochi]

Wow. That was a fast fix. Thx a lot.