Upgraded to 0.9 Dev Launcher after using 0.8.whateverTheLastVersionWas. Minecraft does not launch. Edited default profile to force it to use a version of Minecraft that I know had been downloaded by the previous version of Dev Launcher, and that shows a status of "Up to date" in the Version Selection area of the GUI. Still will not launch. Service status shows "Online, no problems" for both Multiplayer and Login. Attempting to run Minecraft results in...
Client> Exception in thread "main" java.lang.NoClassDefFoundError: net/minecraft/client/main/Main
Client> Caused by: java.lang.ClassNotFoundException: net.minecraft.client.main.Main
Client> at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
Client> at java.security.AccessController.doPrivileged(Native Method)
Client> at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
Client> at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
Client> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
Client> at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
Game ended with bad state (exit code 1)Linked issues
is duplicated by 10
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🙂 yep I am with these people. hoped to get a video out on one of the new features. BTW, thanks for your hard work!
I had this bug in Launcher 0.9.2.
An easy fix:
Edit the affected versions .json and change the following:
"mainClass": "net/minecraft/client/main/Main"
to
"mainClass": "net.minecraft.client.Minecraft"
You can select the version of minecraft from the Profiles tab now. The drop down on the main screen is for selecting the profiles.
That said, I have the same not launching issue (see MCL-413) on Mac.