Your Operating system and DeepLabCut version
Windows 7, conda virtual environment imported into PyCharm IDE, DeepLabCut v2.0.4.1.

Describe the problem
Running train_network(path_config_file) gives me the following error message after "Starting training..." prints:

Traceback (most recent call last):
File "C:\ProgramData\Anaconda3\envs\dlc-windowsGPU\lib\site-packages\tensorflow\python\client\session.py", line 1322, in _do_call
return fn(*args)
File "C:\ProgramData\Anaconda3\envs\dlc-windowsGPU\lib\site-packages\tensorflow\python\client\session.py", line 1307, in _run_fn
options, feed_dict, fetch_list, target_list, run_metadata)
File "C:\ProgramData\Anaconda3\envs\dlc-windowsGPU\lib\site-packages\tensorflow\python\client\session.py", line 1409, in _call_tf_sessionrun
run_metadata)
tensorflow.python.framework.errors_impl.InternalError: Dst tensor is not initialized.
[[Node: resnet_v1_50/block4/unit_2/bottleneck_v1/conv1/weights/read/_1219 = _Recvclient_terminated=false, recv_device="/job:localhost/replica:0/task:0/device:GPU:0", send_device="/job:localhost/replica:0/task:0/device:CPU:0", send_device_incarnation=1, tensor_name="edge_938_resnet_v1_50/block4/unit_2/bottleneck_v1/conv1/weights/read", tensor_type=DT_FLOAT, _device="/job:localhost/replica:0/task:0/device:GPU:0"]]
[[Node: pose/part_pred/block4/stack/_1347 = _Recvclient_terminated=false, recv_device="/job:localhost/replica:0/task:0/device:CPU:0", send_device="/job:localhost/replica:0/task:0/device:GPU:0", send_device_incarnation=1, tensor_name="edge_1430_pose/part_pred/block4/stack", tensor_type=DT_INT32, _device="/job:localhost/replica:0/task:0/device:CPU:0"]]
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:\ProgramData\Anaconda3\envs\dlc-windowsGPU\lib\site-packages\IPython\core\interactiveshell.py", line 2847, in run_code
exec(code_obj, self.user_global_ns, self.user_ns)
File "", line 1, in
dlc.train_network(path_config_file)
File "C:\ProgramData\Anaconda3\envs\dlc-windowsGPU\lib\site-packages\deeplabcut\pose_estimation_tensorflow\training.py", line 81, in train_network
raise e
File "C:\ProgramData\Anaconda3\envs\dlc-windowsGPU\lib\site-packages\deeplabcut\pose_estimation_tensorflow\training.py", line 79, in train_network
train(str(poseconfigfile),displayiters,saveiters,maxiters,max_to_keep=max_snapshots_to_keep) #pass on path and file name for pose_cfg.yaml!
File "C:\ProgramData\Anaconda3\envs\dlc-windowsGPU\lib\site-packages\deeplabcut\pose_estimation_tensorflow\train.py", line 142, in train
feed_dict={learning_rate: current_lr})
File "C:\ProgramData\Anaconda3\envs\dlc-windowsGPU\lib\site-packages\tensorflow\python\client\session.py", line 900, in run
run_metadata_ptr)
File "C:\ProgramData\Anaconda3\envs\dlc-windowsGPU\lib\site-packages\tensorflow\python\client\session.py", line 1135, in _run
feed_dict_tensor, options, run_metadata)
File "C:\ProgramData\Anaconda3\envs\dlc-windowsGPU\lib\site-packages\tensorflow\python\client\session.py", line 1316, in _do_run
run_metadata)
File "C:\ProgramData\Anaconda3\envs\dlc-windowsGPU\lib\site-packages\tensorflow\python\client\session.py", line 1335, in _do_call
raise type(e)(node_def, op, message)
tensorflow.python.framework.errors_impl.InternalError: Dst tensor is not initialized.
[[Node: resnet_v1_50/block4/unit_2/bottleneck_v1/conv1/weights/read/_1219 = _Recvclient_terminated=false, recv_device="/job:localhost/replica:0/task:0/device:GPU:0", send_device="/job:localhost/replica:0/task:0/device:CPU:0", send_device_incarnation=1, tensor_name="edge_938_resnet_v1_50/block4/unit_2/bottleneck_v1/conv1/weights/read", tensor_type=DT_FLOAT, _device="/job:localhost/replica:0/task:0/device:GPU:0"]]
[[Node: pose/part_pred/block4/stack/_1347 = _Recvclient_terminated=false, recv_device="/job:localhost/replica:0/task:0/device:CPU:0", send_device="/job:localhost/replica:0/task:0/device:GPU:0", send_device_incarnation=1, tensor_name="edge_1430_pose/part_pred/block4/stack", tensor_type=DT_INT32, _device="/job:localhost/replica:0/task:0/device:CPU:0"]]

How to Reproduce the problem
Run train_network(path_config_file).

Screenshots
N/A

Additional context
GPU: NVIDIA Quadro 410, 4095 MB RAM
CUDA v9.0
cuDNN v7.3