diff --git a/addons/account_anglo_saxon/i18n/ja.po b/addons/account_anglo_saxon/i18n/ja.po
index d362fcbcfc1..df855860ebd 100644
--- a/addons/account_anglo_saxon/i18n/ja.po
+++ b/addons/account_anglo_saxon/i18n/ja.po
@@ -14,7 +14,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"X-Launchpad-Export-Date: 2012-06-10 04:37+0000\n"
+"X-Launchpad-Export-Date: 2012-06-11 04:46+0000\n"
 "X-Generator: Launchpad (build 15376)\n"
 
 #. module: account_anglo_saxon
diff --git a/addons/project_gtd/i18n/ja.po b/addons/project_gtd/i18n/ja.po
index 2fb20d75bf8..14796c7bee0 100644
--- a/addons/project_gtd/i18n/ja.po
+++ b/addons/project_gtd/i18n/ja.po
@@ -14,7 +14,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"X-Launchpad-Export-Date: 2012-06-10 04:37+0000\n"
+"X-Launchpad-Export-Date: 2012-06-11 04:46+0000\n"
 "X-Generator: Launchpad (build 15376)\n"
 
 #. module: project_gtd
diff --git a/addons/project_long_term/i18n/ja.po b/addons/project_long_term/i18n/ja.po
index 1d1c3fbe74c..3bdbd1f4961 100644
--- a/addons/project_long_term/i18n/ja.po
+++ b/addons/project_long_term/i18n/ja.po
@@ -14,7 +14,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"X-Launchpad-Export-Date: 2012-06-10 04:37+0000\n"
+"X-Launchpad-Export-Date: 2012-06-11 04:46+0000\n"
 "X-Generator: Launchpad (build 15376)\n"
 
 #. module: project_long_term
diff --git a/addons/project_mailgate/i18n/ja.po b/addons/project_mailgate/i18n/ja.po
index 090ea6c83bb..68ce73d515c 100644
--- a/addons/project_mailgate/i18n/ja.po
+++ b/addons/project_mailgate/i18n/ja.po
@@ -14,7 +14,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"X-Launchpad-Export-Date: 2012-06-10 04:37+0000\n"
+"X-Launchpad-Export-Date: 2012-06-11 04:46+0000\n"
 "X-Generator: Launchpad (build 15376)\n"
 
 #. module: project_mailgate
diff --git a/addons/project_messages/i18n/ja.po b/addons/project_messages/i18n/ja.po
index afe7d7c97b8..2a9cbc2324c 100644
--- a/addons/project_messages/i18n/ja.po
+++ b/addons/project_messages/i18n/ja.po
@@ -14,7 +14,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"X-Launchpad-Export-Date: 2012-06-10 04:37+0000\n"
+"X-Launchpad-Export-Date: 2012-06-11 04:46+0000\n"
 "X-Generator: Launchpad (build 15376)\n"
 
 #. module: project_messages
diff --git a/addons/project_mrp/i18n/ja.po b/addons/project_mrp/i18n/ja.po
index 8670faf2eba..8a1b9c9efc1 100644
--- a/addons/project_mrp/i18n/ja.po
+++ b/addons/project_mrp/i18n/ja.po
@@ -14,7 +14,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"X-Launchpad-Export-Date: 2012-06-10 04:37+0000\n"
+"X-Launchpad-Export-Date: 2012-06-11 04:46+0000\n"
 "X-Generator: Launchpad (build 15376)\n"
 
 #. module: project_mrp
diff --git a/addons/project_retro_planning/i18n/ja.po b/addons/project_retro_planning/i18n/ja.po
new file mode 100644
index 00000000000..070d1e1f7d0
--- /dev/null
+++ b/addons/project_retro_planning/i18n/ja.po
@@ -0,0 +1,33 @@
+# Japanese translation for openobject-addons
+# Copyright (c) 2012 Rosetta Contributors and Canonical Ltd 2012
+# This file is distributed under the same license as the openobject-addons package.
+# FIRST AUTHOR <EMAIL@ADDRESS>, 2012.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: openobject-addons\n"
+"Report-Msgid-Bugs-To: FULL NAME <EMAIL@ADDRESS>\n"
+"POT-Creation-Date: 2012-02-08 00:37+0000\n"
+"PO-Revision-Date: 2012-06-10 21:40+0000\n"
+"Last-Translator: Akira Hiyama <Unknown>\n"
+"Language-Team: Japanese <ja@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"X-Launchpad-Export-Date: 2012-06-11 04:46+0000\n"
+"X-Generator: Launchpad (build 15376)\n"
+
+#. module: project_retro_planning
+#: model:ir.model,name:project_retro_planning.model_project_project
+msgid "Project"
+msgstr "プロジェクト"
+
+#. module: project_retro_planning
+#: constraint:project.project:0
+msgid "Error! project start-date must be lower then project end-date."
+msgstr "エラー。プロジェクトの開始日はプロジェクトの終了日より前である必要があります。"
+
+#. module: project_retro_planning
+#: constraint:project.project:0
+msgid "Error! You cannot assign escalation to the same project!"
+msgstr "エラー。同じプロジェクトに拡大の割当はできません。"