思源 ubuntu CJK fonconfig 設定檔

gistfile1.xml

<fontconfig>
  <match target="pattern">
    <test qual="any" name="family">
      <string>serif</string>
    </test>
    <edit name="family" mode="prepend" binding="strong">
      <string>Noto Sans T Chinese</string>
      <string>Noto Sans S Chinese</string>
      <string>Noto Sans Japanese</string>
      <string>Noto Sans Korean</string>
    </edit>
  </match> 
  <match target="pattern">
    <test qual="any" name="family">
      <string>sans-serif</string>
    </test>
    <edit name="family" mode="prepend" binding="strong">
      <string>Noto Sans T Chinese</string>
      <string>Noto Sans S Chinese</string>
      <string>Noto Sans Japanese</string>
      <string>Noto Sans Korean</string>
    </edit>
  </match>
  <match target="pattern">
    <test qual="any" name="family">
      <string>monospace</string>
    </test>
    <edit name="family" mode="prepend" binding="strong">
      <string>Noto Sans T Chinese</string>
      <string>Noto Sans S Chinese</string>
      <string>Noto Sans Japanese</string>
      <string>Noto Sans Korean</string>
    </edit>
  </match>
</fontconfig>

I found this conf leads to unity can't load, what's the problem?