svn Error: post-commit hook failed (exit code 127) with output，svnpost-commit

svn Error: post-commit hook failed (exit code 127) with output，svnpost-commit

Command: Commit  
Modified: C:\Users\xsdff\Desktop\project\index.html  
Sending content: C:\Users\xsdff\Desktop\project\index.html  
Committing transaction...:   
Completed: At revision: 5  
Error: post-commit hook failed (exit code 127) with output:  
Error: /svn/project/hooks/post-commit: line 53: mailer.py: command not found  

[root@v01 hooks]# vi post-commit
/usr/bin/svn update --username user01 --password 123 /alidata/www/project  --no-auth-cache> /alidata/log/svn/svn.log ||exit 1 exit 0 #加上 || exit 1>   和  exit 0  (问题解决！！！)