Trouble with links2sd

[slvrsplsh]

Why is it always me. Now I have tried to increase my space for apps using the links2sd method found here:

https://wiki.mobileread.com/wiki/PRST...ing_and_Tweaks

I did everything per instructions. After reboot I tried to run links2sd, selecting ext3 file system. When it tries to mount the new partition I get an error:

mount script cannot be created.

mount: invalid argument

ext3 may not be supported on your device. Try FAT32 on the second partition.

I did try FAT32 and got a similar error message. I uninstalled links2sd and did a reset and reboot. When I tried it again, I got the same message.
Any suggestions would be more than welcome.

Thanks in advance,
David