HarmonyOS @Concurrent装饰器报错

参考代码：

import taskpool from '@ohos.taskpool';

@Concurrent
function testPromise(args1: number, args2: number): Promise<number> {
  return new Promise<number>((testFuncA, testFuncB) => {
    testFuncA(args1 + args2);
  });
}

export class FCDemoTest {
  public static instance: FCDemoTest = new FCDemoTest();

  private constructor() {
  }

  checkInfo() {
    let task1: taskpool.Task = new taskpool.Task(testPromise, 1, 2);
    taskpool.execute(task1).then((d: object) => {
      console.info("task1 res is: " + d)
    }).catch((e: object) => {
      console.info("task1 catch e: " + e)
    })
  }
}