Почему Allure выдает пустой отчёт?

=================================== ERRORS ====================================
__________________ ERROR collecting Desktop/TestTaskQA/1.py ___________________
AppData\Local\Programs\Python\Python36-32\lib\site-packages\_pytest\config\__ini
t__.py:522: in import_plugin
__import__(importspec)
E ModuleNotFoundError: No module named 'allure.pytest_plugin'; 'allure' is not
a package

During handling of the above exception, another exception occurred:
AppData\Local\Programs\Python\Python36-32\lib\site-packages\six.py:692: in rerai
se
raise value.with_traceback(tb)
AppData\Local\Programs\Python\Python36-32\lib\site-packages\_pytest\config\__ini
t__.py:522: in import_plugin
__import__(importspec)
E ImportError: Error importing plugin "allure.pytest_plugin": No module named
'allure.pytest_plugin'; 'allure' is not a package
!!!!!!!!!!!!!!!!!!! Interrupted: 1 errors during collection !!!!!!!!!!!!!!!!!!!
========================== 1 error in 109.66 seconds ==========================