I just did clean windows 10 installation, after that, I cannot launch minecraft... I downloaded Regrowth pack, after clicking play, I get error popup with a message: "Unable to start Minecraft Runtime Environment. This is most likely caused by a corruption. Please try to reinstall Minecraft." At first, I had Java 8 update 66 installed, had this problem, browsed the Web, found that modded minecraft doesn't like Java 8. Ok, uninstalled it, installed Java SE Runtime Environment 7u79. The problem still persists... I can't open minecraft.exe manually either. Now I have no idead, what to do to make it work!
There seems to be a bug in the handling of permgen in java 8 that can be triggered by CMS or parallel old (aka throughput) collectors. Switch to G1GC, and see if that solves it.
-XX:+UseG1GC
and remove all of the CMS options on your command line
---
Now, which launcher are you using?
> I get error popup with a message: "Unable to start Minecraft Runtime Environment. This is most likely caused by a corruption. Please try to reinstall Minecraft."
That does *not* sound like the vanilla mojang launcher -- if I get errors, I get a message from Java itself saying unable to create virtual machine, often with a message about which option is offending.
So the first question must be: What launcher are you using, and what options is it forcing that are conflicting with what you want?
(* I **HATE** launcher that force options on you. *)
Installed FTB launcher - everything went smooth at first try. The error occurs when Curse launcher launches minecraft.exe (or I open minecraft.exe by myself). I can open minecraft.jar without an error.
If you have FTB launcher, someone pointed out that the checkbox for something like "optimize launch for stronger computers" forces CMS and a few other options that are not always wanted; turning that off will remove unexpected/unwanted options.
Other than that, your launcher should be providing some sort of log file, that is going to be needed to diagnose any sort of "Could not create java virtual machine" error.
Yeah, there is something fishy going on. I uploaded nativelog.txt content to pastebin: http://pastebin.com/XgAHcUZz Folders \Curse\Minecraft\Install\runtime\jre-x64\1.8.0_25 are created, but they are empty. Why would it even try to download new jre? And why is it failing to do it? Meanwhile, same modpack on FTB launcher works fine!
After this error kept showing up for a couple days, after trying to figure out what was the problem, I got it. I don't know if this will work for everyone, but it worked for me. Before I figured out the solution, I update my java, cleaned my computer, updated almost everything I can, and took the advice of all the other posted I found about this error(reinstall minecraft, delete .minecraft, ETC). The way I fixed it was by going to my Local Disk > Program Files (x86) > Minecraft. I deleted the runtime folder and it fixed my issue. Hope this helped
so i figured out a soloution for me at least i had minecarft working fine but not the modpacks in the curse launcher so i just simply copy'd my runtime from my local disk program files (86x) minecraft over to documents curse minecraft install and that fixed it
I'm stuck with this problem- running Win 10 - getting this error after trying everything that I've found - Here is the log file form my last attempt - can ANYONE plz help this idiot get around the problem?
My Java version was just updated to 1.8_77 but this says it is not.
I do not have any other version of java installed.
Thanks!
Set run directory to C:\Downloads Native Launcher Version: 301 Operating System: Windows 10 Home Application Hash: 21880fed62e16988cda4de8d7591a6d2f5078044 Application Data directory: C:\Users\Debby\AppData\Roaming Executable Path: Minecraft.exe App Directory dir: C:\Downloads Start dir: C:/Downloads Launcher dir: C:/Downloads/game TmpDir dir: C:/Downloads/game Java Launcher hash: Java Version: x64: 1 LauncherConfiguration from: https://launchermeta.mojang.com/mc/launcher.json Downloaded config Native launcher is current Native launcher is current We need to update the java runtime! Java version: "1.8.0_25" Current Java version: "" Update Java Version Runtime outdated! Runtime version should be should be 1.8.0_25 We need to update the java launcher! Game launcher outdated! Hash should be ccb4a2df12fa3bd8c4d27ece46f692d12f91a01b Check to see if we can run the launcher Native launcher is current runJavaLauncher Installing java Unpack C:/Downloads/game//_tmpJava.lzma Unpack successful Unpack C:/Downloads/game//_tmpJava.zip Unpack successful 1.8.0_25_tmp does not match 1.8.0_25 Java bin dir: ./runtime/jre-x64/1.8.0_25/bin Installing java launcher Unpacking launcher Unpack C:/Downloads/game/launchertmp.jar.lzma Unpack successful Failed to start application ./runtime/jre-x64/1.8.0_25/bin/java.exe -cp C:/Downloads/game/launcher.jar net.minecraft.launcher.Main --winTen --nativeLauncherVersion 301 Error message: The system cannot find the file specified.
There seems to be a bug in the handling of permgen in java 8 that can be triggered by CMS or parallel old (aka throughput) collectors. Switch to G1GC, and see if that solves it.
-XX:+UseG1GC
and remove all of the CMS options on your command line
---
Now, which launcher are you using?
> I get error popup with a message: "Unable to start Minecraft Runtime Environment. This is most likely caused by a corruption. Please try to reinstall Minecraft."
That does *not* sound like the vanilla mojang launcher -- if I get errors, I get a message from Java itself saying unable to create virtual machine, often with a message about which option is offending.
So the first question must be: What launcher are you using, and what options is it forcing that are conflicting with what you want?
(* I **HATE** launcher that force options on you. *)
I fixed it my deleting FTB files. The FTB launcher seems to not want to play nicely with the curse launcher or maybe the curse laucher reads the FTB launcher as the vanilla launcher. Either way I destroyed my FTB files after I evacuated the saves then reloaded my saves on the ftb modpacks uploaded through curse launcher and I am having no more probelms.
Greetings everyone and sorry for the caps in the 'edit'.
So here around the day I received the "Unable to start Minecraft Runtime Environment[...]" message and I thought to myself what the cause of it could be. After some time of playing around I ended up at the Task Manager and took a look at the information of the Minecraft process. Note that I had not closed the warning window and thus not stopped the process. I right clicked on the Minecraft process and navigated to its folder. In the folder I found the nativelog.txt and it provided me with the information in the spoiler.
I proceeded by uninstalling Java on my computer and then installed the latest version of it. Just to be on the safe side I avoided the updater due to issues with it in the past. After having done that I opened up the folder where I have installed Minecraft and proceeded by copying over the runtime folder to the folder of the Minecraft process.
I figured that it would solve the "Failed to start application ./runtime/jre-x64/1.8.0_25/bin/java.exe[...]", which it turns out to have evidently done. Basically to summarise it: I copied over the runtime folder from the install directory of Minecraft to the Minecraft folder used by Curse and it solved the problem.
So I did this:
D:\Program Files (x86)\Minecraft [Folder where I installed Minecraft; Copied runtime folder here]
Set run directory to C:\Users\usernamehere\Documents\Curse\Minecraft\Install Native Launcher Version: 301 Operating System: Windows 8.1 Application Hash: 21880fed62e16988cda4de8d7591a6d2f5078044 Application Data directory: C:\Users\usernamehere\AppData\Roaming Executable Path: minecraft.exe App Directory dir: C:\Users\usernamehere\Documents\Curse\Minecraft\Install Start dir: C:/Users/usernamehere/Documents/Curse/Minecraft/Install Launcher dir: C:/Users/usernamehere/Documents/Curse/Minecraft/Install/game TmpDir dir: C:/Users/usernamehere/Documents/Curse/Minecraft/Install/game Java Launcher hash: ccb4a2df12fa3bd8c4d27ece46f692d12f91a01b Java Version: 1.8.0_25 x64: 1 LauncherConfiguration from: https://launchermeta.mojang.com/mc/launcher.json Downloaded config Native launcher is current Native launcher is current Java launcher is current: ccb4a2df12fa3bd8c4d27ece46f692d12f91a01b(ccb4a2df12fa3bd8c4d27ece46f692d12f91a01b) Check to see if we can run the launcher Native launcher is current runJavaLauncher Failed to start application ./runtime/jre-x64/1.8.0_25/bin/java.exe -cp C:/Users/usernamehere/Documents/Curse/Minecraft/Install/game/launcher.jar net.minecraft.launcher.Main --workDir C:\Users\usernamehere\Documents\Curse\Minecraft\Install --nativeLauncherVersion 301 Error message: Det går inte att hitta filen. [The file could not be located]
i pressed play on my modpack and it said there is a corruption reininstall minecraft it didnt work i researched on google and here it still didnt work please help
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I just did clean windows 10 installation, after that, I cannot launch minecraft... I downloaded Regrowth pack, after clicking play, I get error popup with a message: "Unable to start Minecraft Runtime Environment. This is most likely caused by a corruption. Please try to reinstall Minecraft."
At first, I had Java 8 update 66 installed, had this problem, browsed the Web, found that modded minecraft doesn't like Java 8. Ok, uninstalled it, installed Java SE Runtime Environment 7u79. The problem still persists... I can't open minecraft.exe manually either. Now I have no idead, what to do to make it work!
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Curse PremiumModded minecraft generally does like Java 8.
There seems to be a bug in the handling of permgen in java 8 that can be triggered by CMS or parallel old (aka throughput) collectors. Switch to G1GC, and see if that solves it.
-XX:+UseG1GC
and remove all of the CMS options on your command line
---
Now, which launcher are you using?
> I get error popup with a message: "Unable to start Minecraft Runtime Environment. This is most likely caused by a corruption. Please try to reinstall Minecraft."
That does *not* sound like the vanilla mojang launcher -- if I get errors, I get a message from Java itself saying unable to create virtual machine, often with a message about which option is offending.
So the first question must be: What launcher are you using, and what options is it forcing that are conflicting with what you want?
(* I **HATE** launcher that force options on you. *)
Installed FTB launcher - everything went smooth at first try. The error occurs when Curse launcher launches minecraft.exe (or I open minecraft.exe by myself). I can open minecraft.jar without an error.
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Curse PremiumFTB launcher and Curse launcher are not the same.
If you have FTB launcher, someone pointed out that the checkbox for something like "optimize launch for stronger computers" forces CMS and a few other options that are not always wanted; turning that off will remove unexpected/unwanted options.
Other than that, your launcher should be providing some sort of log file, that is going to be needed to diagnose any sort of "Could not create java virtual machine" error.
Yeah, there is something fishy going on. I uploaded nativelog.txt content to pastebin: http://pastebin.com/XgAHcUZz
Folders \Curse\Minecraft\Install\runtime\jre-x64\1.8.0_25 are created, but they are empty. Why would it even try to download new jre? And why is it failing to do it? Meanwhile, same modpack on FTB launcher works fine!
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Curse PremiumEasiest reason to try to download a new runtime is "Ohh, you're not running Java 8! Lets force you to upgrade, because java 8 is better!".
Meanwhile, that version is out of date, and J8 seems to have garbage collection bugs in CMS and parallel old.
As for it being empty???
Well, downloaded java 8, and pretty much the same result. http://pastebin.com/Pu247zuk
If I delete runtime folder from \Curse\Minecraft\Install, it downloads 40 some mb file, but well, it fails to extract it there.
After this error kept showing up for a couple days, after trying to figure out what was the problem, I got it. I don't know if this will work for everyone, but it worked for me. Before I figured out the solution, I update my java, cleaned my computer, updated almost everything I can, and took the advice of all the other posted I found about this error(reinstall minecraft, delete .minecraft, ETC). The way I fixed it was by going to my Local Disk > Program Files (x86) > Minecraft. I deleted the runtime folder and it fixed my issue. Hope this helped
so i figured out a soloution for me at least i had minecarft working fine but not the modpacks in the curse launcher so i just simply copy'd my runtime from my local disk program files (86x) minecraft over to documents curse minecraft install and that fixed it
I'm stuck with this problem- running Win 10 - getting this error after trying everything that I've found - Here is the log file form my last attempt - can ANYONE plz help this idiot get around the problem?
My Java version was just updated to 1.8_77 but this says it is not.
I do not have any other version of java installed.
Thanks!
Set run directory to C:\Downloads
Native Launcher Version: 301
Operating System: Windows 10 Home
Application Hash: 21880fed62e16988cda4de8d7591a6d2f5078044
Application Data directory: C:\Users\Debby\AppData\Roaming
Executable Path: Minecraft.exe
App Directory dir: C:\Downloads
Start dir: C:/Downloads
Launcher dir: C:/Downloads/game
TmpDir dir: C:/Downloads/game
Java Launcher hash:
Java Version:
x64: 1
LauncherConfiguration from: https://launchermeta.mojang.com/mc/launcher.json
Downloaded config
Native launcher is current
Native launcher is current
We need to update the java runtime!
Java version: "1.8.0_25"
Current Java version: ""
Update Java Version
Runtime outdated!
Runtime version should be should be 1.8.0_25
We need to update the java launcher!
Game launcher outdated!
Hash should be ccb4a2df12fa3bd8c4d27ece46f692d12f91a01b
Check to see if we can run the launcher
Native launcher is current
runJavaLauncher
Installing java
Unpack C:/Downloads/game//_tmpJava.lzma
Unpack successful
Unpack C:/Downloads/game//_tmpJava.zip
Unpack successful
1.8.0_25_tmp does not match 1.8.0_25
Java bin dir: ./runtime/jre-x64/1.8.0_25/bin
Installing java launcher
Unpacking launcher
Unpack C:/Downloads/game/launchertmp.jar.lzma
Unpack successful
Failed to start application ./runtime/jre-x64/1.8.0_25/bin/java.exe -cp C:/Downloads/game/launcher.jar net.minecraft.launcher.Main --winTen --nativeLauncherVersion 301
Error message: The system cannot find the file specified.
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Curse PremiumTry running as Administrator
same problem with curse launcher cant open any modepack Unable to start Minecraft Runtime Environment
I fixed it my deleting FTB files. The FTB launcher seems to not want to play nicely with the curse launcher or maybe the curse laucher reads the FTB launcher as the vanilla launcher. Either way I destroyed my FTB files after I evacuated the saves then reloaded my saves on the ftb modpacks uploaded through curse launcher and I am having no more probelms.
EDIT: THIS ENABLED ME TO PLAY SKYFACTORY!
Greetings everyone and sorry for the caps in the 'edit'.
So here around the day I received the "Unable to start Minecraft Runtime Environment[...]" message and I thought to myself what the cause of it could be. After some time of playing around I ended up at the Task Manager and took a look at the information of the Minecraft process. Note that I had not closed the warning window and thus not stopped the process. I right clicked on the Minecraft process and navigated to its folder. In the folder I found the nativelog.txt and it provided me with the information in the spoiler.
I proceeded by uninstalling Java on my computer and then installed the latest version of it. Just to be on the safe side I avoided the updater due to issues with it in the past. After having done that I opened up the folder where I have installed Minecraft and proceeded by copying over the runtime folder to the folder of the Minecraft process.
I figured that it would solve the "Failed to start application ./runtime/jre-x64/1.8.0_25/bin/java.exe[...]", which it turns out to have evidently done. Basically to summarise it: I copied over the runtime folder from the install directory of Minecraft to the Minecraft folder used by Curse and it solved the problem.
So I did this:
D:\Program Files (x86)\Minecraft [Folder where I installed Minecraft; Copied runtime folder here]
C:\Users\usernamehere\Documents\Curse\Minecraft\Install [Curse's Minecraft Folder; Inserted copied runtime folder here]
Had this issue and fixed it that way:
- Go to Curse Config (bottom left)
- Search for Minecraft config (creeper face) in the left
- Scroll down until you find "Launch Method"
- Change "Native Launcher" to "Jar Launcher"
- Select the correct version of Java in "Java Version"
This will make the curse client find the right version of Java therefore fixing the error.
Note: if only Forge loads up, you might wanna search for the modpack folder that contains all the mods and replace by the one that's empty.
SAME ISSUE plz help
I hade it, too.
DON'T use the "MY DOCUMENTS" Folder.
Moved The Minecraft dir in the settings to my games drive (E:\Minecraft\curse) and everything works.
may java can't access the documents?
i just did this and worked i also ran as an administer just in case and worked
thank you
i pressed play on my modpack and it said there is a corruption reininstall minecraft it didnt work i researched on google and here it still didnt work please help