Are you using the tarfile installer? The most common issue with Linux installations is using the Linux Archive Manager to uncompress/unzip the installer.
The installer is a classic tarball. The Archive Managers that most Linux distros bundle will use an incompatible decompression algorithm and that will corrupt the installer’s contents. If you used the Archive Manager, the fastest way to fix things is to toss it all, download a fresh copy, and use gzip and tar from the command line.
If you do that, and still have a problem, or are installing with the State Tool installer, contact firstname.lastname@example.org. Include a description of what you’re doing when the error happens, and include the full error messages you get.