TeXShop3 @3.57: patch: can't find file to patch at input line 3

[macports@…]

Build fails at

:debug:patch Assembled command: 'cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_svn.macports.org_trunk_dports_aqua_TeXShop3/TeXShop3/work/texshopsource337" && /usr/bin/patch -p0'
:debug:patch Executing command line:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_svn.macports.org_trunk_dports_aqua_TeXShop3/TeXShop3/work/texshopsource337" && /usr/bin/patch -p0 < '/opt/local/var/macports/sources/svn.macports.org/trunk/dports/aqua/TeXShop3/files/patch-MyPDFKitView-Magnification.m.diff'
:info:patch can't find file to patch at input line 3
:info:patch Perhaps you used the wrong -p or --strip option?
:info:patch The text leading up to this was:
:info:patch --------------------------
:info:patch |--- MyPDFKitView-Magnification.m.orig	2015-10-24 20:57:26.000000000 +0300
:info:patch |+++ MyPDFKitView-Magnification.m	2015-10-24 20:59:03.000000000 +0300
:info:patch --------------------------
:info:patch File to patch: 
:info:patch Skip this patch? [y] 
:info:patch Skipping patch.
:info:patch 1 out of 1 hunk ignored
:info:patch Command failed:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_svn.macports.org_trunk_dports_aqua_TeXShop3/TeXShop3/work/texshopsource337" && /usr/bin/patch -p0 < '/opt/local/var/macports/sources/svn.macports.org/trunk/dports/aqua/TeXShop3/files/patch-MyPDFKitView-Magnification.m.diff'
:info:patch Exit code: 1

[ryandesign (Ryan Carsten Schmidt)]

This was fixed in r141637. Please run "sudo port clean TeXShop3" and "sudo port selfupdate" and then try again.

[macports@…]

Replying to ryandesign@…:

This was fixed in r141637. Please run "sudo port clean TeXShop3" and "sudo port selfupdate" and then try again.

That did the trick, thank you.