该值不是节点集

Question

``xslt选择给我节点带来了一些问题

<xsl:variable name="var4"> select =“ current（）/ serviceTypes：actionCode” />                                      <xsl:choose>                                            `                                            </xsl:attribute>                                        <xsl:otherwise> select =“＆quot; XXX＆quot;” /> />                                     ``

This is giving me error as 错误 ``描述：该值不是节点集