Problems with loading patches on Riivolution on Wii U

[taikuya_tpk]

Hello. I just finished making a mod for Wii Sports, including making the .xml file for patching with Riivolution. It works perfectly fine on my Wii with no problems at all. However, with the vWii, when I load up Riivolution and press 'launch', after a bit, the screen just goes black and the game doesn't load at all. The .xml file and the actual mod files are the same for both my Wii and Wii U. Does anyone understand what is going on in this situation, and if there is anything I could do to resolve this? Any response would be appreciated :3
.xml file (name is rsp.xml)
<wiidisc version="1">
<id game="RSP" />
<options>
<section name="Mod">
<option name="Mod">
<choice name="Enabled">
<patch id="rspfolder" />
</choice>
</option>
</section>
</options>
<patch id="rspfolder">
<folder external="/rsp" recursive="false" />
<folder external="/rsp" disc="/" />
</patch>
</wiidisc>