We have the same error, it crash when we launch the build, we use InstallShield 2018 express and there is no "build tab" under  Releases Here is what I tried : Installation Designer > Prepare for release > Releases > then there is on the right Builds /Express->  Custom , single image etc then if I select any of those links, then Build (from the menu), it crash same issue using the Project assitant, it crash at the last step, when launching the build any help will be highly highly appreciated. Thank you ... View more