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"The java jar file could not be launched." check the console for possible error messages

I try to open a zip file, and I get a pop up saying, " The java jar file could not be launched. check the console for possible error messages." I have read that the solution is by accessing Java Preferences, but the last update took that away. Does anybody know what to do? Does anybody know any alternative Openers I can use for zip files? Anything other than Java? Java is really bugging me I can't stand it. But if there is a solution, I will use it. Thanks in advance everyone.

Mac OS X (10.7.5)

Posted on Feb 20, 2013 9:36 PM

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Posted on Feb 21, 2013 10:21 AM

Ctrl-click on the .zip file, hover your mouse over Open With, and in the submenu select Archive Utility. If Archive Utility isn't listed, click on "Other..." in the submenu, click on your main hard drive, and then go to System > Library > CoreServices and click on Archive Utility, then click on Open.

16 replies

Mar 11, 2013 5:03 PM in response to mrbriguy11

Brandon Sky- sorry I am replying so late, for I have been very busy. The error message i got in Console after trying to open the file is below.


Thanks MadMacs0, for I enabled Logging to be able to see this error messsage. Do you know how to access the page that says whether you are using 32-bit or 64-bit under the Java Control Panel? everyone says that is the solution to my problem, but unfortunately it was all under "Java Preferences."


Brandon Sky- I do not know what this error message means, do u know? lol thanks :)



3/11/13 7:56:12.461 PM [0x0-0x40040].com.apple.JarLauncher: no main manifest attribute, in /Users/mcfarlandbri/Downloads/FieryInferno.jar

Mar 11, 2013 6:39 PM in response to mrbriguy11

mrbriguy11 wrote:


the latest, Java 7, for the latest version of OSX Lion, 10.7.5

Where did you download it from, java.com or oracle.com? If the latter, did you install the JRE or JDK?


Do you also have Java SE 6 from Apple installed, either by migrating from a previous OS X or installing it when you first got your Lion Mac?


Do you know if those files will work with Java 6, Java 7 or both?

Sep 4, 2017 9:16 PM in response to Djcbox

You can't possibly be having the same problem. The RTProtectionDaemon has only been in existence for about two months and this discussion is over four years old.


The error message you posted says nothing about a java jar. AFAIK, RTProtection does not use Java code at all.


You posted this in the OS X v10.7 Lion Forum. Are you really running that old a system? Malwarebytes for Mac only runs on macOS 10.10 through 10.12.


There are only two or three persons who might see your posting, so it's never a good idea to post a "me too", especially one this old. Answers will likely only come if you start a new discussion item in the appropriate Forum for you OS, explaining your situation in much more detail than you have. That will allow maximum exposure and get you much more help faster. That's just the way the Forum works.


Better yet, get help from the developer on the Malwarbytes for Mac Support Forum.

"The java jar file could not be launched." check the console for possible error messages

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