Test case: Array visualization

[aall1230]

I am trying to learn about array visualization, but I encountered this issue when referencing the test/Array directory. Is there any configuration that I might have missed or got wrong? I didn't have this problem with the coreExample.
(sparta2) liyang@liyangdeMacBook-Pro Array % ls
Array_test array_layout.alf test_collection_index.bin
CMakeFiles cmake_install.cmake test_collection_location.dat
CTestTestfile.cmake test_collection_clock.dat test_collection_map.dat
Makefile test_collection_data.dat test_collection_record.bin
argos.log test_collection_display_format.dat test_collection_string_map.dat
(sparta2) liyang@liyangdeMacBook-Pro Array % pythonw ../../../../helios/pipeViewer/pipe_view/argos.py --database test_collection_ --layout-file array_layout.alf
INFO: looking for /Users/liyang/opt/miniconda3/envs/sparta2/bin/transactionsearch
transaction search initialized: you will be able to use search.
Using: /Users/liyang/opt/miniconda3/envs/sparta2/bin/transactionsearch
ERROR:root:Error opening pipeout database (prefix) "test_collection_"
ERROR: main: Error opening pipeout database (prefix) "test_collection_"
ERROR:root:fstream_.peek() != std::ifstream::traits_type::eof(): test_collection_map.dat is empty. Did Argos database collection complete?: in file: 'pipe_view/transactiondb/src/Reader.hpp', on line: 126
ERROR: main: fstream_.peek() != std::ifstream::traits_type::eof(): test_collection_map.dat is empty. Did Argos database collection complete?: in file: 'pipe_view/transactiondb/src/Reader.hpp', on line: 126

[klingaard]

I can reproduce this. Will look into it.