How to resolve "svn: E155017: Checksum mismatch "

while update,
if this error occurs  by  some reason ,  you must follow process.



svn: E155017: Checksum mismatch for '/aa/aa.file':
   expected:  7432edcbdbc1a10fd200000
   recorded:  7b7860484ee5a144c200001


1) svn delete aa.file
2) svn add aa.file
3) svn commit aa.file

this process can resolve svn error .

**** This process cannot cover all case of E155017 ****