Program Unable to Load DLL 'SQLite.Interop.dll' after WiX Installation

Question

I use WiX to bundle a MSI installation file. After the installation, I execute the program but get the following error.

Unable to load DLL \'SQLite.In

Answer 1

In the Product.wxs file, add these:

<Directory Id="INSTALLFOLDER" Name="MyApp">
    <!-- ... -->
    <Directory Id="x86_dir" Name="x86" />
    <Directory Id="x64_dir" Name="x64" />
</Directory>

And add these:

<Fragment>
    <ComponentGroup Id="x86_files" Directory="x86">
        <Component Id="SQLite_x86.Interop.dll" Guid="{GUID}">
            <File Id="SQLite_x86.Interop.dll" Name="SQLite.Interop.dll" Source="$(var.MyApp_TargetDir)x86\SQLite.Interop.dll" />
        </Component>
    </ComponentGroup>
</Fragment>
<Fragment>
    <ComponentGroup Id="x64_files" Directory="x64">
        <Component Id="SQLite_x64.Interop.dll" Guid="{GUID}">
            <File Id="SQLite_x64.Interop.dll" Name="SQLite.Interop.dll" Source="$(var.MyApp_TargetDir)x64\SQLite.Interop.dll" />
        </Component>
    </ComponentGroup>
</Fragment>