Why do I keep getting Android Build Errors?

Dear Community,
When ever I try to build my project I keep getting the same error.
It worked fine for me the first time I built my project but then it failed everytime again.

Here is a link to my log:
link: Microsoft OneDrive - Access files anywhere. Create docs with free Office Online.

Regards,
Max

here is an answer to your problem link text

I am afraid that the specified link is not valid.

excuse me.

here it islink text

and also here link text

and your error message is "ERROR: Exception in UnrealBuildTool: ERROR: cmd.exe failed with args /c “D:\NVIDIA\apache-ant-1.8.2/bin/ant.bat”

you can use this text to search for some extra answers if you want
“UE4 D:\NVIDIA\apache-ant-1.8.2/bin/ant.bat”

try the second link first

Thank you very much saeedc!