Plugins won't install on my server??

For some reason, Some plugins are not installing, ex: SpawnMob, Dupecraft, and Factions. They used to work/install but now there's errors in the console. I can't show you the errors because the console won't let you copy/paste and Even if I tried to, you can't go to the left/right. Please help me, I'm trying to make a server, where my friends and I play on and set up the permissions.BTW, I use permissionsex and essentials all the time, but they didn't up to 1.6 so I won't use it. Even though, I'm using the dev bukkit version, it still didn't work for the recommanded 1.5.2 version.

Error
Link: http://pastebin.com/XHA7Happ

 

We need errors. You can get them from your 'server.log', found in your server directory. Once you find the errors, pastebin them and then update this thread.

Also, this.

 

http://pastebin.com/XHA7Happ . There, pasted on pastebin. See it and help me with it.

 

Talk to the DupePatch developers here. Also, looks like there is a new build as of one day ago that updated it to 1.6.1. Give it a go

 

sillyrosster I did, DupePatch just doesn;t work but thx

 

how are you downloading dupepatch? that jar file in the error seems corrupted.

 

necrodoom I download load the latest Dupcraft, then I drag it to the plugins folder then I run my server TWO times and I still get errors. :/

 

looks like plugin dev was a derp, and fixed it on 1.0.2