Reg:classpath error

hi all
can you please help me how to come out of this class path errors . i tried many times adding jar files but still i am facing same problem.
The project was not build due to class path errors (incomplete or involved in cycle )
The project was not build since its class path is incomplete .Cannot find the class file for com.sap.security.api.Iuser.
Fix the class path then try rebuilding the project .
This compilation unit indirectly references the missing type com.sap.security.api.iuser(typically some required class file is referencing a type outside the class path )
unbound class path variable 'JAVA_HOME' .
can you please send me the steps if possible.
Thanks & Regards
Deepika

hi all
Thanks for your quick response .
java_home error is resolved .
but still i am facing the same problem .
The project was not build since its class path is incomplete .Cannot find the class file for com.sap.security.api.Iuser.
Fix the class path then try rebuilding the project .
This compilation unit indirectly references the missing type com.sap.security.api.iuser(typically some required class file is referencing a type outside the class path ).
Even though i have added the both JAR files related to security .
Still i am facing the above after rebuilding many times the application .
Thanks  & Regard
Deepika
Edited by: deepika_indian on Jul 29, 2011 8:53 AM
Edited by: deepika_indian on Jul 29, 2011 9:29 AM

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