Error installing Ubuntu using Wubi

Error installing Ubuntu using Wubi

I am new to the community and would love to try out Ubuntu. I chose to
install it using Wubi to save the pain of reformatting etc.
I have now tried the installer several times using different partitions
but I get an error. Here is part of the log file:
Traceback (most recent call last):
File "\lib\wubi\application.py", line 58, in run
File "\lib\wubi\application.py", line 132, in select_task
File "\lib\wubi\application.py", line 158, in run_installer
File "\lib\wubi\backends\common\tasklist.py", line 197, in __call__
File "\lib\wubi\backends\win32\backend.py", line 463, in expand_diskimage
File "\lib\wubi\backends\common\utils.py", line 66, in run_command
Exception: Error executing command
>>command=C:\DOCUME~1\ARISH'~1\LOCALS~1\Temp\pyl336.tmp\bin\resize2fs.exe
-f C:\ubuntu\disks\root.disk 17744M
>>retval=1
>>stderr=
>>stdout=resize2fs 1.40.6 (09-Feb-2008)
Usage:
/cygdrive/c/DOCUME~1/ARISH~1/LOCALS~1/Temp/pyl336.tmp/bin/resize2fs.exe -f
C:/ubuntu/disks/root.disk 17744M [-d debug_flags] [-f] [-F] [-p] device
[new_size]