Wix string with characters not available in the database codepage, although the codepage is specified

I have a Wix installer project in VS2012 that compiled just fine the last time I used it (about a week ago). I came back today and got about 15 code page errors:

Error   6   A string was provided with characters that are not available in the specified database code page '1252'. Either change these characters to ones that exist in the database code page, or update the database code page by modifying one of the following attributes: Product/@Codepage, Module/@Codepage, Patch/@Codepage, PatchCreation/@Codepage, or WixLocalization/@Codepage.

The first of these occurs on the following line:

<Package InstallerVersion="200" Compressed="yes" InstallScope="perMachine"
         Manufacturer="(株)テイコク" />

And I guess wix is ​​not happy because of Japanese characters. However, in the product declaration, I set Codepage to 932, which should be correct for Japanese:

<Product Id="*" Codepage="932" Language="1041"
         Name="各務原市農地支援・畑地管理システムインストーラー" Version="1.1.0.0"
         Manufacturer="(株)テイコク" UpgradeCode="PUT-GUID-HERE">

I really don’t understand what the error is or how to solve it, especially since it worked fine a few days ago ...

Here's the full Wix code if necessary:

<?xml version="1.0" encoding="UTF-8"?>
<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi" xmlns:net="http://schemas.microsoft.com/wix/NetFxExtension">
  <Product Id="*" Codepage="932" Language="1041" Name="各務原市農地支援・畑地管理システムインストーラー" Version="1.1.0.0" Manufacturer="(株)テイコク" UpgradeCode="PUT-GUID-HERE">
    <Package InstallerVersion="200" Compressed="yes" InstallScope="perMachine" Manufacturer="(株)テイコク" />

    <UIRef Id="WixUI_Minimal" />
    <UIRef Id="WixUI_ErrorProgressText" />

    <PropertyRef Id="NETFRAMEWORK40CLIENT" />
    <Condition Message="インストールするには.NETフレームワーク4.0が必要です。フレームワークをインストールしてからもう一度インストーラーを実行してください。">
      <![CDATA[Installed OR NETFRAMEWORK40CLIENT]]>
    </Condition>

    <MajorUpgrade DowngradeErrorMessage="もっと新しいバージョンが既にインストールされています。" />
    <MediaTemplate EmbedCab="yes" />

    <Feature Id="ProductFeature" Title="MapManagerInstaller" Level="1">
      <ComponentGroupRef Id="ProductComponents" />
    </Feature>

    <Icon Id="MapManager.exe" SourceFile="MapManager.exe" />
  </Product>

  <Fragment>
    <Directory Id="TARGETDIR" Name="SourceDir">
      <Directory Id="ProgramFilesFolder">
        <Directory Id="INSTALLFOLDER" Name="各務原市農地支援・畑地管理システム" />
      </Directory>
      <Directory Id="DesktopFolder" Name="Desktop">
      </Directory>
      <Directory Id="ProgramMenuFolder" Name="Programs">
        <Directory Id ="ProgramMenuDir" Name="各務原市農地支援・畑地管理システム">
        </Directory>
      </Directory>
    </Directory>
  </Fragment>

  <Fragment>
    <ComponentGroup Id="ProductComponents" Directory="INSTALLFOLDER">
      <Component Id="MapManagerProgramFiles" Guid="*">
        <File Id="MapManagerExe" Name ="MapManager.exe">
          <Shortcut Id="MapManagerDesktopShortcut" Directory="DesktopFolder" Name="各務原市農地支援・畑地管理システム" WorkingDirectory="INSTALLFOLDER" Icon="MapManager.exe" IconIndex="0" Advertise="yes" />
          <Shortcut Id="MapManagerStartMenuShortcut" Directory="ProgramMenuDir" Name="各務原市農地支援・畑地管理システム" WorkingDirectory="INSTALLFOLDER" Icon="MapManager.exe" IconIndex="0" Advertise="yes" />
        </File>
        <File Id="AxInterop.SisLib" Name="AxInterop.SisLib.dll" />
        <File Id="Interop.SisLib" Name="Interop.SisLib.dll" />
        <File Id="ClassMap" Name="ClassMap.dll" />
        <File Id="SuidenManager" Name="SuidenManager.dll" />
        <File Id="HatachiManager" Name="HatachiManager.dll" />
        <File Id="MapManagerShared" Name="MapManagerShared.dll" />
        <RemoveFolder Id="INSTALLDIR" On="uninstall" />
      </Component>
      <Component Id="DesktopShortcut" Guid="*">
        <Shortcut Id="DesktopShortcut" Name="各務原市農地支援・畑地管理システム" Target="[INSTALLFOLDER]MapManager.exe" WorkingDirectory="INSTALLFOLDER" />
        <RemoveFolder Id="DesktopFolder" On ="uninstall" />
        <RegistryValue Root="HKCU" Key="Software\MapMax\各務原市農地支援・畑地管理システム" Type="string" Value="" KeyPath="yes" />
      </Component>
      <Component Id="ProgramMenuDir" Guid="*">
        <RemoveFolder Id="ProgramMenuDir" On ="uninstall" />
        <RegistryValue Root="HKCU" Key="Software\MapMax\各務原市農地支援・畑地管理システム" Type="string" Value="" KeyPath="yes" />
      </Component>
    </ComponentGroup>
  </Fragment>
</Wix>

UPDATE:

1252 . , Wix 1252 ...

wix .

?