Dear Professionals,

I am tried to Install DSpace on My collage i got the below error. please give your valuable suggestions to how can i over come this problem.  

 thanking you.

C:\Dspace\dspace-5.2-src-release\dspace\target\dspace-installer\build.xml:797:
ava returned: 1

Total time: 4 seconds

C:\Dspace\dspace-5.2-src-release\dspace\target\dspace-installer>ant fresh_insta
l
Buildfile: C:\Dspace\dspace-5.2-src-release\dspace\target\dspace-installer\buil
.xml

init_installation:

init_configs:

test_database:
[java] 2016-01-25 14:55:26,744 INFO org.dspace.core.ConfigurationManager
Loading system provided config property (-Ddspace.configuration): config/dspac
.cfg
[java] 2016-01-25 14:55:26,750 INFO org.dspace.core.ConfigurationManager
Using default log4j provided log configuration. If unintended, check your dsp
ce.cfg for (log.init.config)
[java] 2016-01-25 14:55:26,822 WARN org.dspace.storage.rdbms.DataSourceIn
t @ Exception initializing DB pool
[java] org.postgresql.util.PSQLException: The connection attempt failed.
[java] at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionI
pl(ConnectionFactoryImpl.java:152)
[java] at org.postgresql.core.ConnectionFactory.openConnection(Connect
onFactory.java:66)
[java] at org.postgresql.jdbc2.AbstractJdbc2Connection.<init>(Abstract
dbc2Connection.java:125)
[java] at org.postgresql.jdbc3.AbstractJdbc3Connection.<init>(Abstract
dbc3Connection.java:30)
[java] at org.postgresql.jdbc3g.AbstractJdbc3gConnection.<init>(Abstra
tJdbc3gConnection.java:22)
[java] at org.postgresql.jdbc4.AbstractJdbc4Connection.<init>(Abstract
dbc4Connection.java:32)
[java] at org.postgresql.jdbc4.Jdbc4Connection.<init>(Jdbc4Connection.
ava:24)
[java] at org.postgresql.Driver.makeConnection(Driver.java:393)
[java] at org.postgresql.Driver.connect(Driver.java:267)
[java] at java.sql.DriverManager.getConnection(DriverManager.java:571)
[java] at java.sql.DriverManager.getConnection(DriverManager.java:215)
[java] at org.apache.commons.dbcp.DriverManagerConnectionFactory.creat
Connection(DriverManagerConnectionFactory.java:75)
[java] at org.apache.commons.dbcp.PoolableConnectionFactory.makeObject
PoolableConnectionFactory.java:582)
[java] at org.apache.commons.pool.impl.GenericObjectPool.borrowObject(
enericObjectPool.java:974)
[java] at org.apache.commons.dbcp.PoolingDataSource.getConnection(Pool
ngDataSource.java:106)
[java] at org.dspace.storage.rdbms.DataSourceInit.getDatasource(DataSo
rceInit.java:140)
[java] at org.dspace.storage.rdbms.DatabaseManager.initDataSource(Data
aseManager.java:1440)
[java] at org.dspace.storage.rdbms.DatabaseUtils.main(DatabaseUtils.ja
a:83)
[java] Caused by: java.net.UnknownHostException: localhost port 5432
[java] at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocket
mpl.java:178)
[java] at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
[java] at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
[java] at java.net.Socket.connect(Socket.java:579)
[java] at java.net.Socket.connect(Socket.java:528)
[java] at java.net.Socket.<init>(Socket.java:425)
[java] at java.net.Socket.<init>(Socket.java:208)
[java] at org.postgresql.core.PGStream.<init>(PGStream.java:62)
[java] at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionI
pl(ConnectionFactoryImpl.java:76)
[java] ... 17 more
[java] Caught exception:
[java] java.sql.SQLException: org.postgresql.util.PSQLException: The conne
tion attempt failed.
[java] at org.dspace.storage.rdbms.DataSourceInit.getDatasource(DataSo
rceInit.java:171)
[java] at org.dspace.storage.rdbms.DatabaseManager.initDataSource(Data
aseManager.java:1440)
[java] at org.dspace.storage.rdbms.DatabaseUtils.main(DatabaseUtils.ja
a:83)
[java] Caused by: org.postgresql.util.PSQLException: The connection attemp
failed.
[java] at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionI
pl(ConnectionFactoryImpl.java:152)
[java] at org.postgresql.core.ConnectionFactory.openConnection(Connect
onFactory.java:66)
[java] at org.postgresql.jdbc2.AbstractJdbc2Connection.<init>(Abstract
dbc2Connection.java:125)
[java] at org.postgresql.jdbc3.AbstractJdbc3Connection.<init>(Abstract
dbc3Connection.java:30)
[java] at org.postgresql.jdbc3g.AbstractJdbc3gConnection.<init>(Abstra
tJdbc3gConnection.java:22)
[java] at org.postgresql.jdbc4.AbstractJdbc4Connection.<init>(Abstract
dbc4Connection.java:32)
[java] at org.postgresql.jdbc4.Jdbc4Connection.<init>(Jdbc4Connection.
ava:24)
[java] at org.postgresql.Driver.makeConnection(Driver.java:393)
[java] at org.postgresql.Driver.connect(Driver.java:267)
[java] at java.sql.DriverManager.getConnection(DriverManager.java:571)
[java] at java.sql.DriverManager.getConnection(DriverManager.java:215)
[java] at org.apache.commons.dbcp.DriverManagerConnectionFactory.creat
Connection(DriverManagerConnectionFactory.java:75)
[java] at org.apache.commons.dbcp.PoolableConnectionFactory.makeObject
PoolableConnectionFactory.java:582)
[java] at org.apache.commons.pool.impl.GenericObjectPool.borrowObject(
enericObjectPool.java:974)
[java] at org.apache.commons.dbcp.PoolingDataSource.getConnection(Pool
ngDataSource.java:106)
[java] at org.dspace.storage.rdbms.DataSourceInit.getDatasource(DataSo
rceInit.java:140)
[java] ... 2 more
[java] Caused by: java.net.UnknownHostException: localhost port 5432
[java] at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocket
mpl.java:178)
[java] at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
[java] at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
[java] at java.net.Socket.connect(Socket.java:579)
[java] at java.net.Socket.connect(Socket.java:528)
[java] at java.net.Socket.<init>(Socket.java:425)
[java] at java.net.Socket.<init>(Socket.java:208)
[java] at org.postgresql.core.PGStream.<init>(PGStream.java:62)
[java] at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionI
pl(ConnectionFactoryImpl.java:76)
[java] ... 17 more

BUILD FAILED
C:\Dspace\dspace-5.2-src-release\dspace\target\dspace-installer\build.xml:797:
ava returned: 1

Total time: 1 second