i can't start ireport 0.3.1

[2004 IR Help]

By: hitdemo - hitdemo

i can't start ireport 0.3.1

2004-06-07 23:10

my os is win2000 server,jdk is 1.4.2_04,and i have set java_home in environment, add tools.jar ,rt.jar,dt.jar to classpath. but when i click startup.bat .it is says that:

 

 

Exception in thread "main" java.lang.UnsupportedClassVersionError: it/businesslo

gic/ireport/gui/MainFrame (Unsupported major.minor version 48.0)

at java.lang.ClassLoader.defineClass0(Native Method)

at java.lang.ClassLoader.defineClass(Unknown Source)

at java.security.SecureClassLoader.defineClass(Unknown Source)

at java.net.URLClassLoader.defineClass(Unknown Source)

at java.net.URLClassLoader.access$100(Unknown Source)

at java.net.URLClassLoader$1.run(Unknown Source)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(Unknown Source)

at java.lang.ClassLoader.loadClass(Unknown Source)

at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)

at java.lang.ClassLoader.loadClass(Unknown Source)

at java.lang.ClassLoader.loadClassInternal(Unknown Source)

 

does any body can tell me what's wrong with it?

thanks .

btw ,i can run ireport 0.2.3.1 successful.

 

 

 

 

 

By: Alin Vaida - alinv

RE: i can't start ireport 0.3.1

2004-06-08 05:48

If you can run iReport with 'ant iReport', you'll have to recompile it with 'ant jar'. I had a similar problem trying tu run iReport on windows with a jar compiled on linux.

 

Hth,

Alin

 

 

 

 

By: Giulio Toffoli - gt78

RE: i can't start ireport 0.3.1

2004-06-08 15:14

 

This is because iReport 0.3.1 is compiled with java 1.5.

 

Giulio

 

 

 

 

By: hitdemo - hitdemo

RE: i can't start ireport 0.3.1

2004-06-08 18:17

thanks, i recompile it, now it works well.