run batch_script.sh failed

Here is a screen catch with both batch-script.sh and the directory.

in the .sh file APP_DRR = ./app.

but I don't have that directory in the /software/ directory.

I guess I missed a step or there was a failure I didn't notice during previous steps. could anyone give me some suggestions/hints.

which program or execution generates ./app directory in the project/software?

Thank you for the help.

David