Search forums. Log in. Sign up. Computer problem? Tech Support Guy is completely free -- paid for by advertisers and donations. Click here to join today! JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. Thread starter Propain65 Start date Apr 1, Status This thread has been Locked and is not open to further replies.
The original thread starter may use the Report button to request it be reopened but anyone else with a similar issue should start a New Thread. Watch our Welcome Guide to learn how to use this site. Propain65 Thread Starter. Joined Apr 13, Messages Check the console for possible error messages. So I open up console, tried to run the thing again, but nothing seems to show up in the All Messages tab. I type Java in the search tab, nothing comes up.
There are two steps I took so far. Launched it and installed. The software installed successfully. It only takes a minute to sign up. Connect and share knowledge within a single location that is structured and easy to search.
I can't open any. Java is up to date, the jar file is supposed to be executable, but I can't open it with Jar Launcher. Thanks in advance. Sign up to join this community. The best answers are voted up and rise to the top.
Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. How can I open the JAR file? Even though the error message says to check the Console I couldn't find anything useful there. However if you try to run the JAR file from the Terminal you get this error:. MF file. You can add this parameter using the Terminal. MF file within the JAR.
Having said all that, you only get the error if you try to run the JAR like an executable. I don't think you're meant to do that. You are meant to just place the JAR file somewhere the Java runtime can find it, and then refer to it in the code you write as you do the exercises in this book.
You could also open a Terminal window and run the jar from the command line, which should cause any errors to output into the terminal. If your jar is in your downloads folder you would run:. Once you have the error, if you can't figure it out, update your question and we can try to provide more information. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group.
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