运行以下代码时出现错误“TypeError：Fetch参数无无效类型”：
self.optimize_op这是我的网络定义：
_我注意到这个post提出了同样的问题，但上面的代码似乎与答案相同，因为我将Traceback (most recent call last):
File "main.py", line 182, in <module>
main(params)
File "main.py", line 118, in main
loss, actor_params, critic_params = agent.train(batch, total_steps)
File "/home/ld/code_base/drl/new_experiment/ddpg_torcs_v3.0/agent.py", line 61, in train
loss, critic_params = self.net.train(x1, x2, y) # 1.42s
File "/home/ld/code_base/drl/new_experiment/ddpg_torcs_v3.0/critic.py", line 152, in train
self.y: y
File "/home/ld/anaconda2/envs/tensorflow/lib/python2.7/site-packages/tensorflow/python/client/session.py", line 766, in run
run_metadata_ptr)
File "/home/ld/anaconda2/envs/tensorflow/lib/python2.7/site-packages/tensorflow/python/client/session.py", line 951, in _run
fetch_handler = _FetchHandler(self._graph, fetches, feed_dict_string)
File "/home/ld/anaconda2/envs/tensorflow/lib/python2.7/site-packages/tensorflow/python/client/session.py", line 407, in __init__
self._fetch_mapper = _FetchMapper.for_fetch(fetches)
File "/home/ld/anaconda2/envs/tensorflow/lib/python2.7/site-packages/tensorflow/python/client/session.py", line 230, in for_fetch
return _ListFetchMapper(fetch)
File "/home/ld/anaconda2/envs/tensorflow/lib/python2.7/site-packages/tensorflow/python/client/session.py", line 337, in __init__
self._mappers = [_FetchMapper.for_fetch(fetch) for fetch in fetches]
File "/home/ld/anaconda2/envs/tensorflow/lib/python2.7/site-packages/tensorflow/python/client/session.py", line 230, in for_fetch
return _ListFetchMapper(fetch)
File "/home/ld/anaconda2/envs/tensorflow/lib/python2.7/site-packages/tensorflow/python/client/session.py", line 337, in __init__
self._mappers = [_FetchMapper.for_fetch(fetch) for fetch in fetches]
File "/home/ld/anaconda2/envs/tensorflow/lib/python2.7/site-packages/tensorflow/python/client/session.py", line 230, in for_fetch
return _ListFetchMapper(fetch)
File "/home/ld/anaconda2/envs/tensorflow/lib/python2.7/site-packages/tensorflow/python/client/session.py", line 337, in __init__
self._mappers = [_FetchMapper.for_fetch(fetch) for fetch in fetches]
File "/home/ld/anaconda2/envs/tensorflow/lib/python2.7/site-packages/tensorflow/python/client/session.py", line 227, in for_fetch
(fetch, type(fetch)))
TypeError: Fetch argument None has invalid type <type 'NoneType'>
分配给function bar() {
function foo() {}
var foo = 11;
return foo;
foo = 10;
}
alert(typeof bar());
。
注意：我的张量流版本是0.12.1
编辑： 这是我的错误消息：
const sum = (a, b) => {
return a + b;
};
export default sum