Missing ProjDirpath in pre build steps

[goatzhiqiang]

Hello,

I have an issue about the ProjDirPath missing when I try to use ProjDirPath in pre build steps.

Here is my ProjDirPath.

goatzhiqiang_0-1624026834722.png

I try to call a batch file in pre build steps. 

goatzhiqiang_1-1624026955318.png

I found that when I tried to build it, the ProjDirPath seems empty in console.

This is what I got. Can you advise me?

goatzhiqiang_3-1624027095612.png