Failed to install Git -core + svn using MacPorts

Question

I am trying to install git -core with svn on my Mac unsuccessfully on

$ sudo port install git-core +svn
--->  Verifying checksum(s) for db46
Error: Checksum (md5) mismatch for patch.4.6.21.3
Error: Target org.macports.checksum returned: Unable to verify file checksums
Error: The following dependencies failed to build: p5-svn-simple subversion-perlbindings apr-util db46 sqlite3 cyrus-sasl2 neon serf subversion p5-term-readkey
Error: Status 1 encountered during processing.

I tried to solve the problem unsuccessfully

sudo port -f clean --all {neon, subversion,...}

How can you solve the problem?

It is decided:

A program called Peerguardian blocked the installation. When I delete it, everything works now. Many thanks to all the guys!

Answer 1

, db46; , , port. , , db46 - . ? :

$ sudo port selfupdate               # updates the ports tree and port utility
$ sudo port install git +svn    # installs git

Answer 2

Oracle , . MacPorts, , , .