I'm not sure what's going on. I downloaded java again just to make sure that wasn't the issue, but it still wouldn't work. I tried 'open with' and navigating to the java .exe but that didn't work either. Any assistance you could provide would be greatly appreciated.
What exactly happens when you try to open them? You can also try opening a command prompt and entering the following, replacing "pathtojar" with the path to the jar you are trying to open (surround it with quotes if it has spaces), which may display an error message which otherwise isn't appearing:
Nothing happens. I double click on them, the screen stays the same. I right click and click open, the screen stays the same. I click 'open with' and click 'Java Platform SE Binary', the screen stays the same.
C:\Users\queen>java -jar C:\Users\queen\AppData\Roaming\.minecraft\mods\Botania+r1.10-364.4.jar
no main manifest attribute, in C:\Users\queen\AppData\Roaming\.minecraft\mods\Botania+r1.10-364.4.jar
Why are you trying to run a mod? You are only supposed to put them in the "mods" folder that gets created when you install and run Forge (which you appear to have done); the only times you should ever be running a jar file are to install Forge or another modloader, or Optifine, one of the very few standalone mods (Forge also has a exe installer for Windows so you don't need to install Java on your system). Even the game itself won't run if you try to run it directly, without a proper launcher (Java jar files require special code in order to run as a program, otherwise they may simply be used as libraries or collections of code and assets).
Is there an issue with running the Forge instance? If you are using other modded versions you need to change the game directory (use a name which tells what mod / modpack and game version is being used) and move the mod(s) into the appropriate folder (else it will try to load mods from another version and error out. Sharing game configuration files like options.txt will also cause issues, and under no circumstances should you try opening a world in a different version, vanilla or modded, unless you intend to upgrade).
Why are you trying to run a mod? You are only supposed to put them in the "mods" folder that gets created when you install and run Forge (which you appear to have done); the only times you should ever be running a jar file are to install Forge or another modloader, or Optifine, one of the very few standalone mods (Forge also has a exe installer for Windows so you don't need to install Java on your system). Even the game itself won't run if you try to run it directly, without a proper launcher (Java jar files require special code in order to run as a program, otherwise they may simply be used as libraries or collections of code and assets).
Is there an issue with running the Forge instance? If you are using other modded versions you need to change the game directory (use a name which tells what mod / modpack and game version is being used) and move the mod(s) into the appropriate folder (else it will try to load mods from another version and error out. Sharing game configuration files like options.txt will also cause issues, and under no circumstances should you try opening a world in a different version, vanilla or modded, unless you intend to upgrade).
I'm trying to see the file structure so I can make a texture pack for it - with other mods, I've just been replacing the textures in a texture pack someone else already made for that mod but I can't find any texture packs for this specific mod
Just open the jar file in an file archive program like WinRAR, 7zip or even PeaZip.
If you really can't do that, renaming the file extension from .jar to .zip will work too. Just know that Minecraft Forge will complain and possibly refuse to load if not renamed back to .jar
I'm not sure what's going on. I downloaded java again just to make sure that wasn't the issue, but it still wouldn't work. I tried 'open with' and navigating to the java .exe but that didn't work either. Any assistance you could provide would be greatly appreciated.
Try this:
- Open Settings (Windows-key + i)
- Select Apps
- Select Default Apps (left-hand side)
- Select 'Choose default apps by file type'
- Scroll down and find .jar
- Change the application for the .jar file to Java
>> Link to Curseforge <<
I opened settings and it says that the default app is already Java(TM) Platform SE binary
Do you have Java 17 installed?
>> Link to Curseforge <<
I downloaded the latest one, which was Java 22, I think?
Remove it and try java 17
>> Link to Curseforge <<
I uninstalled Java 22, downloaded Java 17, but the jar files still aren't opening when I click on them
What kind of jar files do you want to open?
>> Link to Curseforge <<
What exactly happens when you try to open them? You can also try opening a command prompt and entering the following, replacing "pathtojar" with the path to the jar you are trying to open (surround it with quotes if it has spaces), which may display an error message which otherwise isn't appearing:
java -jar pathtojar
TheMasterCaver's First World - possibly the most caved-out world in Minecraft history - includes world download.
TheMasterCaver's World - my own version of Minecraft largely based on my views of how the game should have evolved since 1.6.4.
Why do I still play in 1.6.4?
Nothing happens. I double click on them, the screen stays the same. I right click and click open, the screen stays the same. I click 'open with' and click 'Java Platform SE Binary', the screen stays the same.
C:\Users\queen>java -jar C:\Users\queen\AppData\Roaming\.minecraft\mods\Botania+r1.10-364.4.jar
no main manifest attribute, in C:\Users\queen\AppData\Roaming\.minecraft\mods\Botania+r1.10-364.4.jar
Why are you trying to run a mod? You are only supposed to put them in the "mods" folder that gets created when you install and run Forge (which you appear to have done); the only times you should ever be running a jar file are to install Forge or another modloader, or Optifine, one of the very few standalone mods (Forge also has a exe installer for Windows so you don't need to install Java on your system). Even the game itself won't run if you try to run it directly, without a proper launcher (Java jar files require special code in order to run as a program, otherwise they may simply be used as libraries or collections of code and assets).
Is there an issue with running the Forge instance? If you are using other modded versions you need to change the game directory (use a name which tells what mod / modpack and game version is being used) and move the mod(s) into the appropriate folder (else it will try to load mods from another version and error out. Sharing game configuration files like options.txt will also cause issues, and under no circumstances should you try opening a world in a different version, vanilla or modded, unless you intend to upgrade).
TheMasterCaver's First World - possibly the most caved-out world in Minecraft history - includes world download.
TheMasterCaver's World - my own version of Minecraft largely based on my views of how the game should have evolved since 1.6.4.
Why do I still play in 1.6.4?
I'm trying to see the file structure so I can make a texture pack for it - with other mods, I've just been replacing the textures in a texture pack someone else already made for that mod but I can't find any texture packs for this specific mod
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ModeratorJust open the jar file in an file archive program like WinRAR, 7zip or even PeaZip.
If you really can't do that, renaming the file extension from .jar to .zip will work too. Just know that Minecraft Forge will complain and possibly refuse to load if not renamed back to .jar