Userland and kernel mismatch

[Robert Fitzpatrick]

I'm not sure how I messed up one server of mine, but hope someone can 
suggest how it can be fixed. When I try to run pkg, I get this error:

root at mx2:~ # pkg update
/lib/libc.so.7: version FBSD_1.4 required by /usr/local/lib/libpkg.so.4 
not found

It seems my userland is out of sync with the kernel:

root at mx2:~ # freebsd-version -uk
10.4-RELEASE-p10
10.4-RELEASE-p10
root at mx2:~ # freebsd-update fetch
root at mx2:~ # uname -U
1000510
root at mx2:~ # uname -K
1004000

I've found posts suggesting how to correct the reverse of an older 
kernel, but how could I fix this issue?

-- 
Robert