Integration

Hi
I am running Oracle 10g AS and database on Linux.
When I issue command opmnctl startall, I am getting following error:

opmn id=dawson:6202
2 of 8 processes started.

ias-instance id=fr904.dawson.insite.amk123.com.au
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
ias-component/process-type/process-set:
HTTP_Server/HTTP_Server/HTTP_Server

Error
--> Process (pid=9036)
managed-process dependency failed
fr904.dawson.insite.amokkajava.com.au~HTTP_Server~HTTP_Server~HTTP_Server
Log:
/opt/oracle/products/ias/fr904/opmn/logs/HTTP_Server~1

--> Process (pid=8681)
failed to start a managed process after the maximum retry limit
Log:
/opt/oracle/products/ias/fr904/opmn/logs/HTTP_Server~1

--------------------------------------------------------------------------------
ias-component/process-type/process-set:
WebCache/WebCache/WebCache

Error
--> Process (pid=8680)
time out while waiting for a managed process to start
Log:
/opt/oracle/products/ias/fr904/opmn/logs/WebCache~WebCache~1

--------------------------------------------------------------------------------
ias-component/process-type/process-set:
WebCache/WebCacheAdmin/WebCacheAdmin

Error
--> Process (pid=8630)
time out while waiting for a managed process to start
Log:
/opt/oracle/products/ias/fr904/opmn/logs/WebCache~WebCacheAdmin~1

--------------------------------------------------------------------------------
ias-component/process-type/process-set:
OC4J/OC4J_BI_Forms/default_island

Error
--> Process (pid=0)
managed-process dependency failed
fr904.dawson.insite.amokkajava.com.au~OC4J~OC4J_BI_Forms~default_island
managed-process dependency failed
fr904.dawson.insite.amokkajava.com.au~OC4J~OC4J_BI_Forms~default_island
failed to start a managed process because a dependency check failed
Log:
none

--------------------------------------------------------------------------------
ias-component/process-type/process-set:
rep_dawson/ReportsServer/rep_dawson

Error
--> Process (pid=0)
failed to start a managed process because a dependency check failed
Log:
none

--------------------------------------------------------------------------------
ias-component/process-type/process-set:
rep_dawson2/ReportsServer/rep_dawson2

Error
--> Process (pid=0)
failed to start a managed process because a dependency check failed
Log:
none
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What can be the reason??
Thanks in advance
Prasad