Dear msnoise community, I come back to msnoise after finishing my Master’s and I am currently trying to study velocity variations on Merapi volcano. I have used this useful package a couple of years ago and see that some parts of it have changed. I was able to follow the “simple run” based on the doc, up to the command msnoise stack -r, where I get the following error: msnoise stack -r Lets STACK ! Traceback (most recent call last): File "/Users/rizal/miniconda/bin/msnoise", line 8, in <module> sys.exit(run()) File "/Users/rizal/miniconda/lib/python3.7/site-packages/msnoise/scripts/msnoise.py", line 1202, in run cli(obj={}) File "/Users/rizal/miniconda/lib/python3.7/site-packages/click/core.py", line 829, in __call__ return self.main(*args, **kwargs) File "/Users/rizal/miniconda/lib/python3.7/site-packages/click/core.py", line 782, in main rv = self.invoke(ctx) File "/Users/rizal/miniconda/lib/python3.7/site-packages/click/core.py", line 1259, in invoke return _process_result(sub_ctx.command.invoke(sub_ctx)) File "/Users/rizal/miniconda/lib/python3.7/site-packages/click/core.py", line 1066, in invoke return ctx.invoke(self.callback, **ctx.params) File "/Users/rizal/miniconda/lib/python3.7/site-packages/click/core.py", line 610, in invoke return callback(*args, **kwargs) File "/Users/rizal/miniconda/lib/python3.7/site-packages/click/decorators.py", line 21, in new_func return f(get_current_context(), *args, **kwargs) File "/Users/rizal/miniconda/lib/python3.7/site-packages/msnoise/scripts/msnoise.py", line 732, in stack main('ref', loglevel=loglevel) File "/Users/rizal/miniconda/lib/python3.7/site-packages/msnoise/s04stack.py", line 172, in main start, end, datelist = build_ref_datelist(db) File "/Users/rizal/miniconda/lib/python3.7/site-packages/msnoise/api.py", line 1495, in build_ref_datelist DataAvailability.starttime).first().starttime.date() AttributeError: 'NoneType' object has no attribute ‘starttime' I assumed that the source came from not defining startdate, but I have actually set startdate msnoise config get startdate M startdate: 2019-08-13 I’ve resetted the reference stack as well by msnoise reset STACK but the error persists. For information, I initially set a database in mysql but then set a new database using sqlite since it looks simpler. Where do I start to troubleshoot this error? Thank you very much for your guidance. Warm regards, Mochammad Husni Rizal Master in Earth Science - IPGP/Université de Paris