Deploying a shared libraries to Spaces application

Hi everybody,
When I want to attach the shared library to Spaces application by specifying the name of the shared library in weblogic.xml. the deployment is failed as following:

Redeploying application webcenter ...

     [exec] <Sep 25, 2013 1:07:10 PM CEST> <Info> <J2EE Deployment SPI> <BEA-260121> <Initiating redeploy operation for application, webcenter#11.1.1.4.0 [archive: null], to WC_Spaces .>

     [exec] ..Failed to redeploy the application with status failed

     [exec] Current Status of your Deployment:

     [exec] Deployment command type: redeploy

     [exec] Deployment State       : failed

     [exec] Deployment Message     : weblogic.application.ModuleException: Failed to load webapp: '/wcsdocs'

     [exec] No stack trace available.

     [exec] None

     [exec] #########################################################

     [exec] #####     ReDeploy Spaces Failed                #########