Please help me.

[Kushagra (Private)]

What this means

[ShaikhSajidAli (Muhammed Sajid Ali)]

Why did not use search there are lot of same threads available.
See this

Can't export apk but the when testing it's all fine. AAPT execution failed (no errors in blocks)

Your package name is in wrong format packagename=SCADA 3000 Should be ex. zxy.domain.yourappname Or remove package name and you will get a default package name [bild]

[The_K_Studio (Karan M.)]

Check your package name.