Deploy Error : A composition unit with name already exists. Select a different application name

from: http://turanunes.wordpress.com/2011/09/21/deploy-error-a-composition-unit-with-name-already-exists-select-a-different-application-name/

When installing an application or performing other administrative actions in WebSphere Application Server version 7.x, the following error is received:
”A composition unit with name already exists. Select a different application name”
Resolving the Problem :
There are some temp file s on the Websphere server , you can delete them…
/opt/IBM/WebSphere/AppServer/profiles/Dmgr01/config/cells/(CellName)/blas/(AppName)
/opt/IBM/WebSphere/AppServer/profiles/Dmgr01/config/cells/(CellName)/cus/(AppName)
and also you can delete
/opt/IBM/WebSphere/AppServer/profiles/Dmgr01/wstemp/*.*
/opt/IBM/WebSphere/AppServer/profiles/Dmgr01/config/cells/isprodwas61Cell01/blas/(AppName)


window==>
C:\Program Files (x86)\IBM\SDP75\runtimes\base_v7\profiles\was70profile1\config\cells\lunayccleo-VAIONode01Cell\blas
C:\Program Files (x86)\IBM\SDP75\runtimes\base_v7\profiles\was70profile1\config\cells\lunayccleo-VAIONode01Cell\cus


C:\Program Files (x86)\IBM\SDP75\runtimes\base_v7\profiles\was70profile1\wstemp