IndexError: list index out of range when trying to build

[grandrew]

$ dephell project build --from pyproject.toml --traceback
WARNING cannot find tool.dephell section in the config (path=pyproject.toml)
INFO dumping... (format=setuppy)
INFO dumping... (format=egginfo)
INFO dumping... (format=sdist)
ERROR IndexError: list index out of range 

Traceback (most recent call last):
  File "/usr/local/lib/python3.7/dist-packages/dephell/cli.py", line 115, in main
    result = task()
  File "/usr/local/lib/python3.7/dist-packages/dephell/commands/project_build.py", line 63, in __call__
    project=resolver.graph.metainfo,
  File "/usr/local/lib/python3.7/dist-packages/dephell/converters/sdist.py", line 127, in dump
    self._write_additional_files(tar=tar, project=project, subdir=subdir)
  File "/usr/local/lib/python3.7/dist-packages/dephell/converters/sdist.py", line 179, in _write_additional_files
    package_size = get_path_size(path=project.package.packages[0].path)
IndexError: list index out of range

experienced this with 3 of 3 projects that I manage with poetry

[orsinium]

Add steps to reproduce, please. Is it open source project? Can you show the files tree?

[Viginox]

This issue occurs, when only the tests folder could be found but no packages. There is no check if a package could be found after the check for the tests folder succeeded.

This issue comes from the dephell project and not from dephell_discover.
I will check the issues there and update / create a one for that.