LGM stable releases (v1.5)

[cb43569]

When I try to run it, I get an error saying "Could not find the main class" then it quits. I tried to run the *.jar file. Er, is it uncompiled or something?

If so, how do I compile it.

Reply soon .

[IsmAvatar]

You are trying to run it with an outdated version of Java. Download Java 6 Runtime Environment from java.sun.com and make sure to follow the installation instructions.

[Dany]

How do I compile it?

[IsmAvatar]

It is already compiled, you should not have to do that. Once you download the .jar file, all you need to do then is run it.

[elemental]

I'm getting a blank screen. I have Java 6.1 runtime as it says in the
window bar. I also downloaded Java 5 and it wouldn't open in that.
The only one it would open in is 6.1. Gray screen. Blank. I don't think
there is a need for screenshots. I'm using Ubuntu 7.04 Feisty. I got the
Java runtime from the Synaptic Package Manager because I'm not
sure how to run .bin files in Ubuntu. Any help?

[IsmAvatar]

Many Linux-related problems will be corrected in the 1.6 release.

Run it from the terminal to see if any errors occur.

[elemental]

Already have. It kinda sounds like I don't have the latest
version. Again, I don't know how to run the .bin file.

Exception in thread "main" java.lang.UnsupportedClassVersionError: mainRes/LGM (Unsupported major.minor version 50.0)
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:539)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:251)
at java.net.URLClassLoader.access$100(URLClassLoader.java:55)
at java.net.URLClassLoader$1.run(URLClassLoader.java:194)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:187)
at java.lang.ClassLoader.loadClass(ClassLoader.java:289)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:274)
at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302)

When I run the Java Updater in the console, this is one I get.

Reading package lists... Done
Building dependency tree
Reading state information... Done
fakeroot is already the newest version.
fakeroot set to manual installed.
java-package is already the newest version

[IsmAvatar]

My guess is that you have 6 installed, but are not using it to run java programs. For some reason, an older version of Java is being used to run Java programs.

Make sure to follow the installation instructions for Java 6 to ensure that it is installed properly. Also, make sure you downloaded the correct version for your OS. There should be a version for Debian products as well, which packages files into a RPM. If this sounds familiar to you, you may try downloading and installing the RPM instead. Either way I understand you get a .bin file out of the download.
Here's the installation instructions:
java.sun.com/javase/6/webnotes/install/jdk/install-linux.html

Usually to run a file in Linux, you just set Execution permissions on it, and then just run it. The extension does not matter, this is just something to give you an idea of what it is, and means nothing to the computer. Java decided to use bin to mean "self-extracting binary". Thus, simply:
chmod +x jdk-6<version>-linux-i586.bin
and then run it:
./jdk-6<version>-linux-i586.bin
Remember to replace <version> with the version you downloaded - or just replace the entire filename with your bin's filename.

[elemental]

I just got the 32-bit version of Ubuntu. I installed
it correctly. I got a blank screen again. I ran it in
the Terminal. This is what I got.

elemental@elemental-desktop:~/Desktop$ java -jar lgm15.jar
default icon not found, any saved files will have no icon unless one is assigned manually.
URI is not hierarchical
java.lang.IllegalArgumentException: URI is not hierarchical
at java.io.File.<init>(File.java:363)
at fileRes.Gm6File.<init>(Gm6File.java:110)
at mainRes.LGM.<clinit>(LGM.java:57)

[IsmAvatar]

Yes, this is the error I was referring to. This will be corrected in LGM 1.6 (and already has been corrected in the dev version). Knoppix had the same problem for me, and another fellow of mine had the same problem with Xubuntu

[elemental]

I just moved over to Linux Mint from Ubuntu. It has pre-installed
Flash, Beryl, Java, etc. It worked looked great. Just like GM! But...
I can't do anything. Is there any point to this so far, or is it just there
to look like the GameMaker? No offense or anything. ;D

[IsmAvatar]

If you had actually read the first post, you would have seen that the latest stable release is incapable of most editing capabilities, and is only really capable of loading and saving files and basic changes/modifications to the tree.
Please wait for version 1.6, which is right around to corner - or if you're too anxious, you can download it from the SVN and compile it yourself (requires JDK) - this version will have many new and exciting features that releases 1.4 and 1.5 don't even begin to allude to.

[MatrixSquare]

Gah, I'm pulling my hair off on this one. I just got a new laptop, and I have Java 6 Update 3 installed properly (I can check this by going into cmd and type in "java -version", it shows me the latest build version that I have installed), but I'm running into the "main class cannot be found" error...

Any ideas?

BTW: I'm currently running XP Pro.

[MatrixSquare]

Sorry, I made a stupid mistake. I got it working now .

[Kevintrooper]

I downloaded 1.5 now and are wondering how to save my games?