Error with google net model

I have imported the googlenet model for mxnet and mxnet.js. It seems it was parsed correctly... But i can not add it in my example code..... I get this error:

> Exception catching is disabled, this exception cannot be caught. Compile with -s DISABLE_EXCEPTION_CATCHING=0 or DISABLE_EXCEPTION_CATCHING=2 to catch.

From this wrapper:

```
_CWRAP_MXPredCreate(symbol_json,
ptr_param_bytes,
param_bytes.length,
1, 0,
ptrarr_input_keys.length,
ptr_input_keys,
ptr_input_shape_indptr,
ptr_input_shape_data,
ptr_handle_out);
```

This wrapper is called in the creation of my predictor class:

`pred = new Predictor(model, {'data': [1, 3, 224, 224]});`

I don't understand why it is not working.... I don't find documentation about the mxnet.js... for this reason, i don't know exactly which input parameters should specify as 'data'...