'Reference to nonexistent field' error occurs while 'ECO_tir' tracker is running

[zosel260]

Hello.
I'm very impressed by your study results so I want to run your tracker.
However, while 'ECO_tir' tracker is running, I got an error, "Reference to nonexistent field'net'".

This is my procedure :

1. download vot tool kit and create VOT_workspace. ( experiment=vottir2016, identifier=ECO_tir, language=matlab,...)
2. download  matconvnet and compiled it. set it's path on setup_paths.m with my local path
3. set 'ECO_repo_path' on VOT_integration/tracker_ECO_tir.m  with my local  repo. path.
4. copy tracker_EOC_tir.m  into my VOT workspace folder.
5. run run_experiments.

This is errors printed command lines :

Initializing workspace ...
Verifying native components ...
Experiment baseline
  Tracker ECO_tir
    Sequence quadrocopter2
      Repetition 1
      Tracker execution interrupted: Unable to establish connection.
An error occurred while using: traxclient
Unable to establish connection.

ERROR: tracker_run (line 77)
    data = traxclient(tracker.command, callback, ...

ERROR: experiment_supervised (line 71)
    data = tracker_run(tracker, @callback, data);

ERROR: tracker_evaluate (line 57)
	[files, metadata] = experiment_function(tracker, sequence, directory, parameters, scan);

ERROR: workspace_evaluate>execute_iterator (line 128)
            tracker_evaluate(event.tracker, event.sequence, event.experiment);

ERROR: iterate (line 65)
            context = iterator(event, context);

ERROR: workspace_evaluate (line 93)
context = iterate(experiments, trackers, sequences, 'iterator', iterator, 'context', context);

ERROR: run_experiments (line 10)
workspace_evaluate(tracker, sequences, experiments);

This is error information from VOT_integration\error_reports\ECO_OTB_DEEP_settings_tircnn_200829_1327.mat

1. error
   error.message means "Reference to nonexistent field'net'".
   

2. error. stack
   

According to stack, this error occurs at the 93th line in 'init features.m'.
net = features{k}.fparams.net;
=>This error means 'fparams.net' field was not set before .
Could you please give any advice?
Thanks in advance.

[zosel260]

I found out that there is no loading of net model.
By enabling call of 'load_cnn' function from line 92 of init_features.m like below, I can run vgg model normally.

 net = load_cnn(features{k}.fparams, img_sample_sz); %enable  
% net = features{k}.fparams.net;  %disable 

However, load_cnn can load only the simple networks like vgg, it can't load the DAG models like resnet.
So, once I changed the 'cnn_params.nn_name' from 'vgg.mat' to 'resnet.mat' at the line 3 of OTB_DEEP_settings_tircnn.m, It doesn't work.
I tried to modify load_cnn.m to load both resnet & vgg like below:
However I don't know how to fill net.info for resnet case.

function net = load_cnn(fparams, im_size)

%modify for reset(DAG) and vgg(simple) both
if(strcmp(fparams.nn_name, 'resnet.mat')) %  resnet(dag model)
    net_struct = load(['networks/' fparams.nn_name]);
    net = dagnn.DagNN.loadobj(net_struct.net);
else % vgg model
    net = load(['networks/' fparams.nn_name]);
    net = vl_simplenn_tidy(net);
end
....

%modify for resnet and vgg both
if(strcmp(fparams.nn_name, 'resnet.mat')) %  resnet(dag model)
    net.info=?  %% I don't know how to modify
else % for vgg
    net.info = vl_simplenn_display(net);
end

Q) Is there any proper function for loading 'resnet.mat' which can replace load_cnn.m or how can I fill net.info for resnet case?

Thanks in advance.