x86 - This installation package is not supported by this processor type

hello i using InstallShield 2015 Limited Edition for Visual Studio 2012 and i build my x86 visual studio project with installshield
after i check installshield setup i get this

<assemblyIdentity
version="1.0.0.0"
processorArchitecture="X86"
name="InstallShield.Setup"
type="win32"
/>


but when i try to setup om project on 32 bit os i get error
This installation package is not supported by this processor type

please help me.