Error in attachig database in sql server 2012

HI Experts,

I detached the database and was trying to re-attach the database but got the below error.

An error occurred while processing the log for database ''.  If possible, restore from backup. If a backup is not available, it might be necessary to rebuild the log.
Could not open new database 'livedb'. CREATE DATABASE is aborted. (Microsoft SQL Server, Error: 9004)


I executed this commands and got the errror 
 
sp_attach_single_file_db @DBNAME='livedb', @PHYSNAME='F:\Live Database\Livedb.mdf'

CREATE DATABASE [livedb] ON (FILENAME = N'F:\Live Database\Livedb.mdf')
FOR ATTACH_REBUILD_LOG;

CREATE DATABASE [Livedb] ON (FILENAME = N'F:\Live Database\Livedb.mdf')
FOR ATTACH;

File activation failure. The physical file name "F:\Live Database\Livedb.ldf" may be incorrect.
The log cannot be rebuilt because there were open transactions/users when the database was shutdown,
 no checkpoint occurred to the database, or the database was read-only. 
This error could occur if the transaction log file was manually deleted or lost due to a hardware or environment failure.
Msg 1813, Level 16, State 2, Line 1
Could not open new database 'livedb'. CREATE DATABASE is aborted.
Can anyone help to workaround for this above error...

Its very urgent

Thanks For help in advance 

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Pavicoolman