Failed to download file, the file contents differ from what was expected. Name: jopt-simple-4.5.jar URL: https://libraries.minecraft.net/net/sf/jopt-simple/jopt-simple/4.5/jopt-simple-4.5.jar Filename on disk: jopt-simple-4.5.jar Path: C:\Users\BefitRaptor82\Twitch\Minecraft\Install\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar Exists: File
This happens on every modpack I try and play pls help.
This is a documented issue with the launcher. To work around it: Download this file: http://www.java2s.com/Code/Jar/j/Downloadjoptsimple45jar.htm For your setup (Twitch) go to the folder: \Twitch\Minecraft\Install\libraries\net\sf\jopt-simple\jopt-simple\4.5 Replace the file in that folder with the one you downloaded earlier.
I'm having a similar issue but with jopt-simple-4.6.jar. Is there a different method for this?
Failed to download file, the file contents differ from what was expected. Name: jopt-simple-4.6.jar URL: https://libraries.minecraft.net/net/sf/jopt-simple/jopt-simple/4.6/jopt-simple-4.6.jar Filename on disk: jopt-simple-4.6.jar Path: C:\Users\Owner\Documents\Curse\Minecraft\Install\libraries\net\sf\jopt-simple\jopt-simple\4.6\jopt-simple-4.6.jar Exists: File
Can you please explain more thoroughly? I'm bad with computers and I have no clue what you're talking about. If you have a discord maybe you could give me some one-on-one help.
Thanks, Chris
Ooh yeah in case it's not obvious I'm having the same problem as the original poster
2. Click where the red box is in the image I've attached. 3. Remove any text in that box and type in what it says after Path in your image (C:\Users...) 4. There may be files in the location you end up in. Delete any files named "jopt-simple-4.6.jar". KEEP THIS WINDOW OPEN!! 5. Go to the link http://central.maven.org/maven2/net/sf/jopt-simple/jopt-simple/4.6/jopt-simple-4.6.jar ; it should just download the file you need. 6. Place the file it downloaded where you went to in step 4. 7. Run minecraft and feel free to tell me if any further issues occur.
I had a similar problem to jollymood, the error code path I got was in C:\Program Files (x86)\Minecraft Launcher\game\Install\libraries\net\sf\jopt-simple\jopt-simple\4.5 and i replaced the file there with the link provided by you in response to befitraptor82. When i tried running mc with my modpack, it crashed. I also know nothing about computers, can you help me..?
An error like this can occur for a number of reasons. Check that the modpack has enough RAM, and that there is RAM enough left over for running anything else alongside it.
Check that all mods in the pack are compatible, as well.
Beyond that there's not much here for me to go on, and it doesn't seem related to this issue at this point.
I was having the same problem, but instead of jopt-simple-4.6 jar it was 4.5 I deleted the jopt-simple-4.5 file and installed the 4.6 in the 7 steps above, but when I launched the Decimation modpack, the error popped up again, and when i went into files the jopt-simple-4.5 jar file was there even though I deleted it. I tried again, deleting the jopt-simple-4.5 jar file and relaunching the modpack, but it happened again. Even though I have the jopt-simple-4.6 jar file, it still just puts the jopt-simple-4.5 jar file back in.
I am having this issue where Minecraft will never fully download the modpack "Sky Factory 3" it will only download to 64.3 MB of the total 128 MB every time. I saw you had a solution to this exact issue with jollymood and so I followed your steps but Minecraft could still not launch the modpack. I repeated the process 4 times to no avail. Also, I'm not exactly sure why but I can use the modpack on a different account of this PC but just not my account. Could you please help me find what the issue might be.
Oh thank you so much, i have tried 67 different ways to try fixing this problem. I even tried replacing the jar but nothing happened. I cant believe that it now still works, your a life saver
Im having the EXACT same issue but when I type in what is says after path it is not taking me anywhere. I have tried everything to get it to take me somewhere but nothing so i can not add or delete files.
Please help ASAP as I have no computer skills and can not play any downloaded mods!
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Failed to download file, the file contents differ from what was expected.
Name: jopt-simple-4.5.jar
URL: https://libraries.minecraft.net/net/sf/jopt-simple/jopt-simple/4.5/jopt-simple-4.5.jar
Filename on disk: jopt-simple-4.5.jar
Path: C:\Users\BefitRaptor82\Twitch\Minecraft\Install\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar
Exists: File
This happens on every modpack I try and play pls help.
This is a documented issue with the launcher. To work around it:
Download this file: http://www.java2s.com/Code/Jar/j/Downloadjoptsimple45jar.htm
For your setup (Twitch) go to the folder:
\Twitch\Minecraft\Install\libraries\net\sf\jopt-simple\jopt-simple\4.5
Replace the file in that folder with the one you downloaded earlier.
EDIT: Improved wording & clarity
I'm having a similar issue but with jopt-simple-4.6.jar. Is there a different method for this?
Failed to download file, the file contents differ from what was expected.
Name: jopt-simple-4.6.jar
URL: https://libraries.minecraft.net/net/sf/jopt-simple/jopt-simple/4.6/jopt-simple-4.6.jar
Filename on disk: jopt-simple-4.6.jar
Path: C:\Users\Owner\Documents\Curse\Minecraft\Install\libraries\net\sf\jopt-simple\jopt-simple\4.6\jopt-simple-4.6.jar
Exists: File
In reply to esforester:
Just go to the URL and put the file where it tells you the file needs to be.
Even with downloading and trying the unzipped, zipped, and without the file entirely and mc still refuses to believe there's a file there, any tips?
i'm trying to fix this too and even after downloading and putting the file in place it didn't work.
What is the error, specifically? Do note that if it says you need version 4.5, you have to get version 4.5, and if it says you need 4.6, you have to use version 4.6, and so on.
http://central.maven.org/maven2/net/sf/jopt-simple/jopt-simple/4.6/jopt-simple-4.6.jar
is a link to a working 4.6 jar
http://www.java2s.com/example/jar/j/jopt-simple-index.html
Has links for many other jopt versions
Also, when people post "C:\Users\Owner", C is the drive letter minecraft is in, and Owner is replaced with your username.
In reply to Hexidecimark:
Can you please explain more thoroughly? I'm bad with computers and I have no clue what you're talking about. If you have a discord maybe you could give me some one-on-one help.
Thanks, Chris
Ooh yeah in case it's not obvious I'm having the same problem as the original poster
Delete the file if its there and download it from the link it is giving you, and put the new file in the location.
In reply to jollymood:
This is a different problem.
1. Open file explorer.
2. Click where the red box is in the image I've attached.
3. Remove any text in that box and type in what it says after Path in your image (C:\Users...)
4. There may be files in the location you end up in. Delete any files named "jopt-simple-4.6.jar". KEEP THIS WINDOW OPEN!!
5. Go to the link http://central.maven.org/maven2/net/sf/jopt-simple/jopt-simple/4.6/jopt-simple-4.6.jar ; it should just download the file you need.
6. Place the file it downloaded where you went to in step 4.
7. Run minecraft and feel free to tell me if any further issues occur.
In reply to Hexidecimark:
I had a similar problem to jollymood, the error code path I got was in C:\Program Files (x86)\Minecraft Launcher\game\Install\libraries\net\sf\jopt-simple\jopt-simple\4.5 and i replaced the file there with the link provided by you in response to befitraptor82. When i tried running mc with my modpack, it crashed. I also know nothing about computers, can you help me..?
In reply to Shayberri789:
An error like this can occur for a number of reasons. Check that the modpack has enough RAM, and that there is RAM enough left over for running anything else alongside it.
Check that all mods in the pack are compatible, as well.
Beyond that there's not much here for me to go on, and it doesn't seem related to this issue at this point.
I was having the same problem, but instead of jopt-simple-4.6 jar it was 4.5
I deleted the jopt-simple-4.5 file and installed the 4.6 in the 7 steps above, but when I launched the Decimation modpack, the error popped up again, and when i went into files the jopt-simple-4.5 jar file was there even though I deleted it.
I tried again, deleting the jopt-simple-4.5 jar file and relaunching the modpack, but it happened again. Even though I have the jopt-simple-4.6 jar file, it still just puts the jopt-simple-4.5 jar file back in.
pls help
In reply to SpyrePlayz:
Have you tried using the 4.5 jar from the download? If it is looking for a jopt 4.5, then it will ignore any other versions in the same folder.
Hey guys,
I am having a similar issue but with a different file.
Error message:
Failed to download file, the file contents differ from what was expected.
Name: 1.12.2.jar
URL: https://launcher.mojang.com/v1/objects/0f275bc1547d01fa5f56ba34bdc87d981ee12daf/client.jar
Filename on disk: 1.12.2.jar
Path: C:\Users\username\Twitch\Minecraft\Install\versions\1.12.2\1.12.2.jar
Exists: File
--------------------------------------------
If you can please help I would really appreciate it!
In reply to Hexidecimark:
I am having this issue where Minecraft will never fully download the modpack "Sky Factory 3" it will only download to 64.3 MB of the total 128 MB every time. I saw you had a solution to this exact issue with jollymood and so I followed your steps but Minecraft could still not launch the modpack. I repeated the process 4 times to no avail. Also, I'm not exactly sure why but I can use the modpack on a different account of this PC but just not my account. Could you please help me find what the issue might be.
In reply to Hexidecimar
Oh thank you so much, i have tried 67 different ways to try fixing this problem. I even tried replacing the jar but nothing happened. I cant believe that it now still works, your a life saver
In reply to Hexidecimark:
I dont know how to download it
In reply to Shayberri789:
I'm having the same exact problem and i have absolutely no clue what to do. I need help. MAJOR help.
In reply to Hexidecimark:
Im having the EXACT same issue but when I type in what is says after path it is not taking me anywhere. I have tried everything to get it to take me somewhere but nothing so i can not add or delete files.
Please help ASAP as I have no computer skills and can not play any downloaded mods!