Getting Error on converting an activity to local activity

[ankit]

I also found this,

How to make activity use the same worker?

My DownloadActivity downloads files, stores them in filesystem and returns paths. I have 2 worker pods, so when control is back to workflow it can’t find stored files, because workflow is executed by another pod. In the main workflow I assemble payload and pass them to ChildWorkflows. Then I do cleanup. I wanted to use Sessions, but they work from activity to activity. Another thing I tried is ExecuteLocalActivity but that doesn’t seem to suit this case. Getting this "Error":"expected 3 arg…

Here also someone got a similar error on converting an activity to a local activity. But the discussion in that forum does not talk about that error, but mostly talks about session.