poi in android

Hi

I am trying to read/write data from excel sheet using poi in android. I included the following jars in libs folder.
Jars:
poi-3.12-android-a.jar
poi-ooxml-4.0.0.jar
poi-ooxml-schemas-3.12.jar
stax-api-1.0.jar
xmlbeans-3.0.1.jar

After building the gradle the following errors " poi Cannot resolve the symbol" occur.
Please help me to solve this issue.

Regards
Padmani.