Error with .jar file
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ertty75
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 i need a little help. i got every thing you need  for the hack and then i tryed opening the jar file and it sayed "Failed to load main class atrubut from the file
PLEASE HElp

InvisiblePerson
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Don't open minecraft.jar,

Don't open minecraft.jar, just save it to your lib folder.

ertty75
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ty it works but now i have

ty it works but now i have another problem 

I can do the hacks but only in singleplayer not in mulitplayer and building things with out hacks is hard and i like building with other people 
I have no idead what to do

PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Sincerly,
         Ertty75

Jon
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Could you help us a little

Could you help us a little more as to what errors you see or come up?

What error are you experiencing?
What operating system are you using?
How much RAM does your computer have?
What version of Java do you have?

ertty75
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Xps

I dont think its ram or java or operating system because i have an xps gaming computer and i just updated java like a day ago so its not that problem please help and the error is when i go on multiplayer my hacks dont work like they just are an epic fail im just like anyone else with no hacks. and when im in single player the work just fin like im a super human but never multiplayer.
i even tried reintalling everything

Jon
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I'm asking for a specific

I'm asking for a specific error, like when you login, the server list is blank, look in the command prompt to see if there were any errors in there you may have missed.

Also, how did you setup the client?

ertty75
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re:I'm asking for a specific

The error in the black box says Failed to poll device: Deviced is relesed

I set it up by putting minecraft.jar in lib before i extracted and thats what people say to do. the i went to run clicked it put in my user looked for a server and then the hacks woulden't work so i went to single player and the worked just fine oh ya only in mutiplayer i canpress x and it turns on noclip but i have to hold it  u know the one that you go through things but all the other hacks dont work like fly just regular fly, triple or double jump or anything

speedstacks01
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help guys i have a problemit

help guys i have a problem
it says "could not find main class"
and i cannot open the hack
T_T pls help me

InvisiblePerson
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Any errors in the terminal?

Any errors in the terminal?