Hi, there. when I download the binaries and tried to run them, I met the pop up box, "Error at startup: Error creating directory, hr=5", like this

click ok, and then becomes

I tried in environment NH, landscapemountain, Zhangjiajie, they all appeared such error. First I thought it was a bug like #977 , but when I succeed in building the tutorial example https://github.com/Microsoft/AirSim/blob/master/docs/unreal_blocks.md, just before the last step---press play button, the error occurred again.

I realized that maybe I need to single this out, maybe it's my own problem. (I'm using win7, 64bit, vs2017, ue4.18.3 , i don't know if these matters).
Anyone knows how to solve this? Thanks