ValueError: num_outputs should be int or long, got 400.

[lweqwef789]

Traceback (most recent call last):
File "D:\ProgramData\Anaconda3\lib\site-packages\IPython\core\interactiveshell.py", line 2862, in run_code
exec(code_obj, self.user_global_ns, self.user_ns)
File "", line 1, in
runfile('G:/Users/PycharmProjects/untitl2/NeuralDialog-CVAE-master/NeuralDialog-CVAE-master/kgcvae_swda.py', wdir='G:/Users/PycharmProjects/untitl2/NeuralDialog-CVAE-master/NeuralDialog-CVAE-master')
File "G:\Program Files\JetBrains\PyCharm 2020.1\plugins\python\helpers\pydev_pydev_bundle\pydev_umd.py", line 197, in runfile
pydev_imports.execfile(filename, global_vars, local_vars) # execute the script
File "G:\Program Files\JetBrains\PyCharm 2020.1\plugins\python\helpers\pydev_pydev_imps_pydev_execfile.py", line 18, in execfile
exec(compile(contents+"\n", file, 'exec'), glob, loc)
File "G:/Users/PycharmProjects/untitl2/NeuralDialog-CVAE-master/NeuralDialog-CVAE-master/kgcvae_swda.py", line 169, in
main()
File "G:/Users/PycharmProjects/untitl2/NeuralDialog-CVAE-master/NeuralDialog-CVAE-master/kgcvae_swda.py", line 72, in main
model = KgRnnCVAE(sess, config, api, log_dir=None if FLAGS.forward_only else log_dir, forward=False, scope=scope)
File "G:\Users\PycharmProjects\untitl2\NeuralDialog-CVAE-master\NeuralDialog-CVAE-master\models\cvae.py", line 257, in init
activation_fn=tf.tanh, scope="fc1")
File "D:\ProgramData\Anaconda3\lib\site-packages\tensorflow\contrib\framework\python\ops\arg_scope.py", line 181, in func_with_args
return func(*args, **current_args)
File "D:\ProgramData\Anaconda3\lib\site-packages\tensorflow\contrib\layers\python\layers\layers.py", line 1638, in fully_connected
'num_outputs should be int or long, got %s.' % (num_outputs,))
ValueError: num_outputs should be int or long, got 400.

how to solve it ?