找不到名称为“ interval”的触发器

我一直在与APscheduler合作，尝试运行代码时出现错误“找不到名为“ interval”的触发器”

它完全在我的本地计算机上，但是可以在我的云计算机上使用。

我尝试过：通过pip，easy_install和手动重新安装apscheduler；升级设置工具；升级所有依赖项。

编辑：代码

if __name__ == '__main__':
    scheduler = Blockingscheduler()
    scheduler.add_job(SMS,'interval',minutes=1)
    scheduler.start()
    print Run Complete

    try:
        # This is here to simulate application activity (which keeps the main thread alivE).
        while True:
            time.sleep(2)
    except (KeyboardInterrupt,SystemExit):
        scheduler.shutdown()  # Not Strictly necessary if Daemonic mode is enabled but should be done if possible


LookupError                               TraceBACk (most recent call last)
<ipython-input-40-2895cd586d3f> in <module>()
      1 if __name__ == '__main__':
      2     scheduler = Blockingscheduler()
----> 3     scheduler.add_job(SMS,hours=1)
      4     scheduler.start()
      5     print "Run Complete"

/Users/admin/anaconda/lib/python2.7/site-packages/apscheduler/schedulers/base.pyc in add_job(self,func,trigger,args,kwargs,id,name,misfire_grace_time,coalesce,max_instances,next_run_time,jobstore,executor,replace_exisTing,**trigger_args)
    328 
    329         job_kwargs = {
--> 330             'trigger': self._create_trigger(trigger,trigger_args),331             'executor': executor,332             'func': func,/Users/admin/anaconda/lib/python2.7/site-packages/apscheduler/schedulers/base.pyc in _create_trigger(self,trigger_args)
    780 
    781         # Instantiate the trigger class
--> 782         return self._create_plugin_instance('trigger',trigger_args)
    783 
    784     def _create_lock(self):

/Users/admin/anaconda/lib/python2.7/site-packages/apscheduler/schedulers/base.pyc in _create_plugin_instance(self,type_,alias,constructor_kwargs)
    764                     raise TypeError('The {0} entry point does not point to a {0} class'.format(type_))
    765             else:
--> 766                 raise LookupError('No {0} by the name "{1}" was found'.format(type_,alias))
    767 
    768         return plugin_cls(**constructor_kwargs)

LookupError: No trigger by the name "interval" was found