Building jars in eclipse

[hirak1984]

I have the following error while running a jar file built using eclipse==>
"
Failed to load Main-Class manifest attribute from C:\Documents and Settings\195156\Workspace\tool1.jar "

tool1.jar is the name i have given to the jar file.

The class that contains the "main(String a[])" function is "test2.class"

and i have 4 more classes.I have created a META-INF folder under the project root directory,and created a file named"MANIFEST.MF".
Written the following lines in the file==>
Manifest-Version: 1.0
Main-Class:ZipSelfExtractor

Class-Path: lib/org.eclipse.swt.win32.win32.x86_3.1.1.jar

I cant find the cause of error,please help me with it.

[r035198x]

I have the following error while running a jar file built using eclipse==>
"
Failed to load Main-Class manifest attribute from C:\Documents and Settings\195156\Workspace\tool1.jar "

tool1.jar is the name i have given to the jar file.

The class that contains the "main(String a[])" function is "test2.class"

and i have 4 more classes.I have created a META-INF folder under the project root directory,and created a file named"MANIFEST.MF".
Written the following lines in the file==>
Manifest-Version: 1.0
Main-Class:ZipSelfExtractor

Class-Path: lib/org.eclipse.swt.win32.win32.x86_3.1.1.jar

I cant find the cause of error,please help me with it.

The error is showing when you try to run the jar file not when creating the jar file right? Have a look at this.

[hirak1984]

Hey I have followed the steps written in the link,but it still didnt work.I dont know wat to do!!

[r035198x]

Hey I have followed the steps written in the link,but it still didnt work.I dont know wat to do!!

Make sure that the last line in your mainifest is a blank line. Press enter after the last line.