Struts 2 file upload tag type allowed error

[aman thind]

Whenever i try to upload a file in my application in which i have used struts file tag, I am getting following message:
Unable to find 'struts.multipart.saveDir' property setting. Defaulting to javax.
servlet.context.tempdir

Any idea how to resolve this.
Below is my code:
<interceptor-stack name="fileUploadStack">
<interceptor-ref name="exception" />
<interceptor-ref name="alias" />
<interceptor-ref name="servletConfig" />
<interceptor-ref name="prepare" />
<interceptor-ref name="i18n" />
<interceptor-ref name="chain" />
<interceptor-ref name="debugging" />
<interceptor-ref name="profiling" />
<interceptor-ref name="scopedModelDriven" />
<interceptor-ref name="modelDriven" />
<interceptor-ref name="fileUpload">
<param name="allowedTypes"> application/xls</param>
<param name="maximumSize">10240</param>
</interceptor-ref>
<interceptor-ref name="checkbox" />
<interceptor-ref name="staticParams" />
<interceptor-ref name="actionMappingParams" />
<interceptor-ref name="params">
<param name="excludeParams"> dojo\..*,^struts\..*</param>
</interceptor-ref>
<interceptor-ref name="conversionError" />
<interceptor-ref name="validation">
<param name="excludeMethods"> input,back,cancel,browse</param>
</interceptor-ref>
<interceptor-ref name="workflow">
<param name="excludeMethods"> input,back,cancel,browse</param>
</interceptor-ref>
</interceptor-stack>
.
<interceptor-stack name="secureStack">
<interceptor-ref name="authentication" />
<interceptor-ref name="defaultStack"/>
</interceptor-stack>
.
.
..
<action name="someaction" class="someactionclass">
<interceptor-ref name="fileUploadStack" />
<result name="input">/somejsp.jsp</result>
<result name="success">/somesuccess.jsp</result>
<result name="error">/error.jsp</result>
</action>

[Ankit Garg]

Checkout this

[David Newton]

Please UseCodeTags when posting code or configuration. Unformatted code and configuration is very difficult to read. You can edit your post to include them by using the button.

And what's to resolve? It's just telling you where it's saving the temporary files.