I wished to try out the demo of Minecraft for the Mac/PC on my MacBook Pro with Retina Display (yes, I was able to afford a decent set-up for this Mac) and after playing Minecraft's Xbox 360 Edition for over a year, I wanted a copy of Minecraft for my Mac to have with me wherever I go. But before I wanted to purchase it, I wanted to play the demo to make sure it works.
After downloading the appropriate update to Java and shutting off the warnings that initially prevented me from playing Minecraft on Safari and Firefox, I felt that would be sufficient for the browsers to play Minecraft online.
But when I go to play the demo, I get a notice from the server telling me that the game had crashed because it "Failed to start game."
Steps to Reproduce:
1) Run the latest Safari or Firefox browsers on a Mac with OS X Mountain Lion (10.8.4) installed
2) When you reach the demo page, if the browsers need an additional plug-in for Java, download update for Java, after downloading Java updates through the Mac App Store.
3) When privacy warnings are prompted, tell Java to not show those messages again. There will be two mode alerts.
4) After all that, wait through the loading screen, it will go dark, and then the horrible error message will appear!
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Ezekiel
Is this still a concern in the current Minecraft version? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.
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Use the new launcher and see if it works with 1.6.2.
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Ezekiel, I'm not sure if this is an issue for 1.6.2, but I tried using the demo to make sure that Minecraft will play when I purchase the game in earnest. So, I tried using Safari and Firefox (Chrome is crap for not enabling Java) for the browsers on my MacBook. And they won't work with the demo. The demo runs on an older version of Minecraft, v.1.5.2. If and whenever I do find a bug if I ever purchase and download the latest version, I'll make sure to alert you all and Mojang here!
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Anon Ymus, I updated Java to the latest version. The Mac App Store updated Java there, and I went ahead and downloaded the latest version of the launcher from Java's website, but all I end up with is the crash alert when I try using the demo to make sure Minecraft will work fine on my MacBook Pro with Retina Display (15-inch, Ivy-Bridge Intel Core i7 2.6 GHz, 512 GB SSD, 16 DDR3 RAM, NVIDIA GeForce GT 650M with 1 GB VRAM). I switched over to the PC partition of my MacBook, running Windows 7 Home Premium, and after updating the Java launcher, the demo works fine, but I use Win7 for storing documents and working on Microsoft Office apps. And I only have 1.2 GB of storage left after partitioning my SSD with 50 GB dedicated to the PC partition. So I want a copy on the Mac so I can have enough space to run the game and have saved maps. I was only using the demo (v.1.5.2) not the latest version (1.6.2). If the Mac is able to run 1.6.2, please let me know!
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You need to download Minecraft at: https://s3.amazonaws.com/Minecraft.Download/launcher/Minecraft.exe to use the new demo versions. The browser version are no longer in development.