Issues with new installation of VirtualBox 5.2/5.1 on centos 7

[mgrosen]

I am unable to build the kernel modules for virtualbox.

This is the error i get when i try to start the setup:
/usr/lib/virtualbox/vboxdrv.sh setup
vboxdrv.sh: Stopping VirtualBox services.
vboxdrv.sh: Starting VirtualBox services.
vboxdrv.sh: Building VirtualBox kernel modules.
grep: Unmatched ) or \)
vboxdrv.sh: failed: Look at /var/log/vbox-setup.log to find out what went wrong.

And these are the contents of the log:
cat /var/log/vbox-setup.log
Building the main VirtualBox module.
Error building the module:

The kernel version i am running is:
uname -r
3.10.0-862.9.1.el7.x86_64

I was unable to find any info about this specific issue.

[socratis]

Where did you get your VirtualBox from? I hope you got it from the official VirtualBox website https://www.virtualbox.org/wiki/Linux_Downloads and not from the CentOS store/repository. If you did, that's a forked version of VirtualBox. You can either ask in their forums for help, or completely remove/uninstall/delete/purge their version and install the official one.

[mgrosen]

I installed it from the virtualbox repository mentioned in the link you provided.

[socratis]

/usr/lib/virtualbox/vboxdrv.sh setup

Then why are you doing that? You shouldn't have to do that, unless something went wrong and you were instructed to do that.