Hi Team how do I troubleshoot this error message ```March 17

Question

Hi Team how do I troubleshoot this error message ```March 17th 2020 at 5 13 44pm | prefect CloudTaskRunner INFO Task sfdc download data Starting task run March 17th 2020 at 5 13 44pm | prefect CloudTaskRunner ERROR Unexpected error KeyError text Traceback most recent call last File usr local lib python3 7 site packages prefect engine runner py line 48 in inner new state = method self state args kwargs File usr local lib python3 7 site packages prefect engine cloud task runner py line 225 in check task is cached for key res in candidate state cached inputs or items File usr local lib python3 7 site packages prefect engine cloud task runner py line 225 in lt dictcomp gt for key res in candidate state cached inputs or items KeyError text ```

Scott Zelenka · Answer

It seems to be related to this task ``` task max retries=3 retry delay=datetime timedelta minutes=5 cache for=datetime timedelta days=1 cache validator=cache validators duration only def sfdc download data url typing Union str Parameter gt typing Union str Result ```

Scott Zelenka · Answer

but there s no `text` parameter in this Task where is the task runner getting this cached input from

josh · Answer

Were you ever using `text` in relation to this task To me it looks like the cache duration has not passed so the cached inputs are retrieved from cloud but then the inputs to your task runner no longer have that text attribute

Scott Zelenka · Answer

Not that task but another task with a different function name in the same Flow which is also attempting to cache does have a `text` and `url` parameter My assumption was that if it detected a change in the task inputs it would invalidate the cache and recompute it Or in this case if it failed to load the previous cache it would invalidate and retry How does one force an invalidation of the cache without waiting for the original duration setting

josh · Answer

The only way to delete this cached input would be to delete the cached state from Cloud or wait out the duration I see room for improvement here because your expected behavior makes a lot of sense i e if the cached inputs are different then it should not attempt to use the cache because they would not match