'filename' couldn't be opened

[wlevans]

I have written a simple program using LDPC that runs on an Ubuntu 22.04 embedded system with dual Cortex A9 cores. I need the program to run automatically, so I created a systemd service so that it would start at boot. Unfortunately, when starting this way, I get the following error:

terminate called after throwing an instance of 'aff3ct::tools::invalid_argument'
what(): In the '/home/xilinx/aff3ct/aff3ct/src/Tools/Code/LDPC/Matrix_handler/LDPC_matrix_handler.cpp' file at line 63 ('read' function): "'filename' couldn't be opened ('filename' = matrixes/MACKAY_504_1008.alist)."

When I run the program form the command line, I do not get this error, and the program runs fine.

I have verified that he directory and file (matrixes/MACKAY_504_1008.alist) have the read permissions set (all have read access).

Any help on this matter would be appreciated.

[kouchy]

Did you simply try to use a absolute path? Maybe your relative path is wrong because it is not relative to where you think.

[wlevans]

That was it. I should have known.

Thanks for you assistance and time.