Some error dialog does not have a Report Issue button

[hans-permana]

Expected behavior

Error dialog box has a Report Issue button

Actual behavior

Error dialog box does not have a Report Issue button

Steps to reproduce the problem

1. Open esacci.AEROSOL.mon.L3.AAI.multi-sensor.multi-platform.ms_uvai.1-5-7.r1 dataset with a time range of 1978-11-01,1980-11-31
2. Click Download & Open Local
3. When download is almost complete, an error dialog box (without Report Issue button) popped up Here is the stacktrace:

Traceback (most recent call last):
  File "C:\Projects\cci-toolbox\cate\cate\ds\local.py", line 176, in open_dataset
    excluded_variables], monitor=monitor)
  File "C:\Projects\cci-toolbox\cate\cate\core\ds.py", line 615, in open_xarray_dataset
    **kwargs)
  File "C:\Miniconda3\envs\cate-env\lib\site-packages\xarray\backends\api.py", line 642, in open_mfdataset
    data_vars=data_vars, coords=coords)
  File "C:\Miniconda3\envs\cate-env\lib\site-packages\xarray\core\combine.py", line 436, in auto_combine
    for ds in grouped]
  File "C:\Miniconda3\envs\cate-env\lib\site-packages\xarray\core\combine.py", line 436, in <listcomp>
    for ds in grouped]
  File "C:\Miniconda3\envs\cate-env\lib\site-packages\xarray\core\combine.py", line 365, in _auto_concat
    return concat(datasets, dim=dim, data_vars=data_vars, coords=coords)
  File "C:\Miniconda3\envs\cate-env\lib\site-packages\xarray\core\combine.py", line 120, in concat
    return f(objs, dim, data_vars, coords, compat, positions)
  File "C:\Miniconda3\envs\cate-env\lib\site-packages\xarray\core\combine.py", line 276, in _dataset_concat
    'variable %s not equal across datasets' % k)
ValueError: variable absorbing_aerosol_index not equal across datasets

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "C:\Projects\cci-toolbox\cate\cate\util\web\jsonrpchandler.py", line 209, in send_service_method_result
    result = future.result()
  File "C:\Miniconda3\envs\cate-env\lib\concurrent\futures\_base.py", line 425, in result
    return self.__get_result()
  File "C:\Miniconda3\envs\cate-env\lib\concurrent\futures\_base.py", line 384, in __get_result
    raise self._exception
  File "C:\Miniconda3\envs\cate-env\lib\concurrent\futures\thread.py", line 56, in run
    result = self.fn(*self.args, **self.kwargs)
  File "C:\Projects\cci-toolbox\cate\cate\util\web\jsonrpchandler.py", line 306, in call_service_method
    result = method(*method_params, monitor=monitor)
  File "C:\Projects\cci-toolbox\cate\cate\webapi\websocket.py", line 291, in set_workspace_resource
    monitor=monitor)
  File "C:\Projects\cci-toolbox\cate\cate\core\wsmanag.py", line 317, in set_workspace_resource
    workspace.execute_workflow(res_name=res_name, monitor=monitor)
  File "C:\Projects\cci-toolbox\cate\cate\core\workspace.py", line 612, in execute_workflow
    self.workflow.invoke_steps(steps, context=self._new_context(), monitor=monitor)
  File "C:\Projects\cci-toolbox\cate\cate\core\workflow.py", line 627, in invoke_steps
    steps[0].invoke(context=context, monitor=monitor)
  File "C:\Projects\cci-toolbox\cate\cate\core\workflow.py", line 318, in invoke
    self._invoke_impl(_new_context(context, step=self), monitor=monitor)
  File "C:\Projects\cci-toolbox\cate\cate\core\workflow.py", line 980, in _invoke_impl
    return_value = self._op(monitor=monitor, **input_values)
  File "C:\Projects\cci-toolbox\cate\cate\core\op.py", line 216, in __call__
    return_value = self._wrapped_op(**input_values)
  File "C:\Projects\cci-toolbox\cate\cate\ops\io.py", line 83, in open_dataset
    monitor=monitor)
  File "C:\Projects\cci-toolbox\cate\cate\core\ds.py", line 540, in open_dataset
    return data_source.open_dataset(time_range, region, var_names, monitor=monitor.child(20))
  File "C:\Projects\cci-toolbox\cate\cate\ds\local.py", line 196, in open_dataset
    raise ValidationError(msg) from e
cate.core.types.ValidationError: Cannot open local dataset for time range 1978-11-01, 1980-12-01T23:59:59:
variable absorbing_aerosol_index not equal across datasets

Specifications

cate-desktop 2.0.0-dev.13 cate-core 2.0.0-dev.12

[forman]

Assigned to @papesci because ValidationError is the wrong error type here. ValidationError should be raised on invalid user input, but the user didn't do anything wrong,

[forman]

Removed "gui" label, because this is just a representation detail but not cause.