Lesson 8 homework assignments

@jeremy The other issues I’m running into is the following. This is happening on both Ubuntu and Mac as well. I didn’t change anything. So I’m not sure if this is an issue with changing from Theano to TF or another issues. Online it says that it’s bad initalizations of shapes but not sure what the issue could be.

indent preformatted text by 4 spaces
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InvalidArgumentError                      Traceback (most recent call last)
~/anaconda3/envs/ml_py3/lib/python3.6/site-packages/tensorflow/python/client/session.py in _do_call(self, fn, *args)
   1038     try:
-> 1039       return fn(*args)
   1040     except errors.OpError as e:

~/anaconda3/envs/ml_py3/lib/python3.6/site-packages/tensorflow/python/client/session.py in _run_fn(session, feed_dict, fetch_list, target_list, options, run_metadata)
   1020                                  feed_dict, fetch_list, target_list,
-> 1021                                  status, run_metadata)
   1022 

~/anaconda3/envs/ml_py3/lib/python3.6/contextlib.py in __exit__(self, type, value, traceback)
     88             try:
---> 89                 next(self.gen)
     90             except StopIteration:

~/anaconda3/envs/ml_py3/lib/python3.6/site-packages/tensorflow/python/framework/errors_impl.py in raise_exception_on_not_ok_status()
    465           compat.as_text(pywrap_tensorflow.TF_Message(status)),
--> 466           pywrap_tensorflow.TF_GetCode(status))
    467   finally:

InvalidArgumentError: Incompatible shapes: [64] vs. [128]
	 [[Node: gradients_1/add_1_grad/BroadcastGradientArgs = BroadcastGradientArgs[T=DT_INT32, _class=["loc:@add_1"], _device="/job:localhost/replica:0/task:0/cpu:0"](gradients_1/add_1_grad/Shape, gradients_1/add_1_grad/Shape_1)]]

During handling of the above exception, another exception occurred:

InvalidArgumentError                      Traceback (most recent call last)
<ipython-input-71-d733ab4b440a> in <module>()
----> 1 x = solve_image(evaluator, iterations, x)

<ipython-input-27-99c5991ad031> in solve_image(eval_obj, niter, x)
      2     for i in range(niter):
      3         x, min_val, info = fmin_l_bfgs_b(eval_obj.loss, x.flatten(),
----> 4                                          fprime=eval_obj.grads, maxfun=20)
      5         x = np.clip(x, -127,127)
      6         print('Current loss value:', min_val)

~/anaconda3/envs/ml_py3/lib/python3.6/site-packages/scipy/optimize/lbfgsb.py in fmin_l_bfgs_b(func, x0, fprime, args, approx_grad, bounds, m, factr, pgtol, epsilon, iprint, maxfun, maxiter, disp, callback, maxls)
    191 
    192     res = _minimize_lbfgsb(fun, x0, args=args, jac=jac, bounds=bounds,
--> 193                            **opts)
    194     d = {'grad': res['jac'],
    195          'task': res['message'],

~/anaconda3/envs/ml_py3/lib/python3.6/site-packages/scipy/optimize/lbfgsb.py in _minimize_lbfgsb(fun, x0, args, jac, bounds, disp, maxcor, ftol, gtol, eps, maxfun, maxiter, iprint, callback, maxls, **unknown_options)
    326             # until the completion of the current minimization iteration.
    327             # Overwrite f and g:
--> 328             f, g = func_and_grad(x)
    329         elif task_str.startswith(b'NEW_X'):
    330             # new iteration

~/anaconda3/envs/ml_py3/lib/python3.6/site-packages/scipy/optimize/lbfgsb.py in func_and_grad(x)
    276     else:
    277         def func_and_grad(x):
--> 278             f = fun(x, *args)
    279             g = jac(x, *args)
    280             return f, g

~/anaconda3/envs/ml_py3/lib/python3.6/site-packages/scipy/optimize/optimize.py in function_wrapper(*wrapper_args)
    290     def function_wrapper(*wrapper_args):
    291         ncalls[0] += 1
--> 292         return function(*(wrapper_args + args))
    293 
    294     return ncalls, function_wrapper

<ipython-input-25-95afa49bd58f> in loss(self, x)
      3 
      4     def loss(self, x):
----> 5         loss_, self.grad_values = self.f([x.reshape(self.shp)])
      6         return loss_.astype(np.float64)
      7 

~/anaconda3/envs/ml_py3/lib/python3.6/site-packages/keras/backend/tensorflow_backend.py in __call__(self, inputs)
   2227         session = get_session()
   2228         updated = session.run(self.outputs + [self.updates_op],
-> 2229                               feed_dict=feed_dict)
   2230         return updated[:len(self.outputs)]
   2231 

~/anaconda3/envs/ml_py3/lib/python3.6/site-packages/tensorflow/python/client/session.py in run(self, fetches, feed_dict, options, run_metadata)
    776     try:
    777       result = self._run(None, fetches, feed_dict, options_ptr,
--> 778                          run_metadata_ptr)
    779       if run_metadata:
    780         proto_data = tf_session.TF_GetBuffer(run_metadata_ptr)

~/anaconda3/envs/ml_py3/lib/python3.6/site-packages/tensorflow/python/client/session.py in _run(self, handle, fetches, feed_dict, options, run_metadata)
    980     if final_fetches or final_targets:
    981       results = self._do_run(handle, final_targets, final_fetches,
--> 982                              feed_dict_string, options, run_metadata)
    983     else:
    984       results = []

~/anaconda3/envs/ml_py3/lib/python3.6/site-packages/tensorflow/python/client/session.py in _do_run(self, handle, target_list, fetch_list, feed_dict, options, run_metadata)
   1030     if handle is None:
   1031       return self._do_call(_run_fn, self._session, feed_dict, fetch_list,
-> 1032                            target_list, options, run_metadata)
   1033     else:
   1034       return self._do_call(_prun_fn, self._session, handle, feed_dict,

~/anaconda3/envs/ml_py3/lib/python3.6/site-packages/tensorflow/python/client/session.py in _do_call(self, fn, *args)
   1050         except KeyError:
   1051           pass
-> 1052       raise type(e)(node_def, op, message)
   1053 
   1054   def _extend_graph(self):

InvalidArgumentError: Incompatible shapes: [64] vs. [128]
	 [[Node: gradients_1/add_1_grad/BroadcastGradientArgs = BroadcastGradientArgs[T=DT_INT32, _class=["loc:@add_1"], _device="/job:localhost/replica:0/task:0/cpu:0"](gradients_1/add_1_grad/Shape, gradients_1/add_1_grad/Shape_1)]]

Caused by op 'gradients_1/add_1_grad/BroadcastGradientArgs', defined at:
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/site-packages/ipykernel_launcher.py", line 16, in <module>
    app.launch_new_instance()
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/site-packages/traitlets/config/application.py", line 658, in launch_instance
    app.start()
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/site-packages/ipykernel/kernelapp.py", line 477, in start
    ioloop.IOLoop.instance().start()
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/site-packages/zmq/eventloop/ioloop.py", line 177, in start
    super(ZMQIOLoop, self).start()
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/site-packages/tornado/ioloop.py", line 888, in start
    handler_func(fd_obj, events)
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/site-packages/tornado/stack_context.py", line 277, in null_wrapper
    return fn(*args, **kwargs)
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/site-packages/zmq/eventloop/zmqstream.py", line 440, in _handle_events
    self._handle_recv()
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/site-packages/zmq/eventloop/zmqstream.py", line 472, in _handle_recv
    self._run_callback(callback, msg)
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/site-packages/zmq/eventloop/zmqstream.py", line 414, in _run_callback
    callback(*args, **kwargs)
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/site-packages/tornado/stack_context.py", line 277, in null_wrapper
    return fn(*args, **kwargs)
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/site-packages/ipykernel/kernelbase.py", line 283, in dispatcher
    return self.dispatch_shell(stream, msg)
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/site-packages/ipykernel/kernelbase.py", line 235, in dispatch_shell
    handler(stream, idents, msg)
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/site-packages/ipykernel/kernelbase.py", line 399, in execute_request
    user_expressions, allow_stdin)
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/site-packages/ipykernel/ipkernel.py", line 196, in do_execute
    res = shell.run_cell(code, store_history=store_history, silent=silent)
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/site-packages/ipykernel/zmqshell.py", line 533, in run_cell
    return super(ZMQInteractiveShell, self).run_cell(*args, **kwargs)
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/site-packages/IPython/core/interactiveshell.py", line 2698, in run_cell
    interactivity=interactivity, compiler=compiler, result=result)
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/site-packages/IPython/core/interactiveshell.py", line 2802, in run_ast_nodes
    if self.run_code(code, result):
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/site-packages/IPython/core/interactiveshell.py", line 2862, in run_code
    exec(code_obj, self.user_global_ns, self.user_ns)
  File "<ipython-input-67-de37f8a93ea6>", line 2, in <module>
    grads = K.gradients(loss, model.input)
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/site-packages/keras/backend/tensorflow_backend.py", line 2264, in gradients
    return tf.gradients(loss, variables, colocate_gradients_with_ops=True)
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/site-packages/tensorflow/python/ops/gradients_impl.py", line 560, in gradients
    grad_scope, op, func_call, lambda: grad_fn(op, *out_grads))
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/site-packages/tensorflow/python/ops/gradients_impl.py", line 368, in _MaybeCompile
    return grad_fn()  # Exit early
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/site-packages/tensorflow/python/ops/gradients_impl.py", line 560, in <lambda>
    grad_scope, op, func_call, lambda: grad_fn(op, *out_grads))
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/site-packages/tensorflow/python/ops/math_grad.py", line 598, in _AddGrad
    rx, ry = gen_array_ops._broadcast_gradient_args(sx, sy)
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/site-packages/tensorflow/python/ops/gen_array_ops.py", line 411, in _broadcast_gradient_args
    name=name)
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/site-packages/tensorflow/python/framework/op_def_library.py", line 768, in apply_op
    op_def=op_def)
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/site-packages/tensorflow/python/framework/ops.py", line 2336, in create_op
    original_op=self._default_original_op, op_def=op_def)
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/site-packages/tensorflow/python/framework/ops.py", line 1228, in __init__
    self._traceback = _extract_stack()

...which was originally created as op 'add_1', defined at:
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
[elided 18 identical lines from previous traceback]
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/site-packages/IPython/core/interactiveshell.py", line 2862, in run_code
    exec(code_obj, self.user_global_ns, self.user_ns)
  File "<ipython-input-67-de37f8a93ea6>", line 1, in <module>
    loss = sum(style_loss(l1[0], l2[0]) for l1,l2 in zip(layers, targs))
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/site-packages/tensorflow/python/ops/math_ops.py", line 821, in binary_op_wrapper
    return func(x, y, name=name)
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/site-packages/tensorflow/python/ops/gen_math_ops.py", line 73, in add
    result = _op_def_lib.apply_op("Add", x=x, y=y, name=name)
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/site-packages/tensorflow/python/framework/op_def_library.py", line 768, in apply_op
    op_def=op_def)
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/site-packages/tensorflow/python/framework/ops.py", line 2336, in create_op
    original_op=self._default_original_op, op_def=op_def)
  File "/Users/zaoyang/anaconda3/envs/ml_py3/lib/python3.6/site-packages/tensorflow/python/framework/ops.py", line 1228, in __init__
    self._traceback = _extract_stack()

InvalidArgumentError (see above for traceback): Incompatible shapes: [64] vs. [128]
	 [[Node: gradients_1/add_1_grad/BroadcastGradientArgs = BroadcastGradientArgs[T=DT_INT32, _class=["loc:@add_1"], _device="/job:localhost/replica:0/task:0/cpu:0"](gradients_1/add_1_grad/Shape, gradients_1/add_1_grad/Shape_1)]]