Problem FTB app not launching

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H

Henrt1218

New Member
Mar 7, 2020
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the app shows up in task manager and a background process and not a running app, every time i launch it i get the following error message in the text document. I also cannot launch it through the .jar file because it gives me various errors

Error message:
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
Aug 10, 2020 4:02:34 PM net.creeperhost.creeperlauncher.CreeperLogger error
SEVERE: Not a valid instance '.localCache', skipping...
java.lang.IllegalArgumentException: Invalid UUID string: infinity 1.7.10
at java.base/java.util.UUID.fromString(UUID.java:215)
at net.creeperhost.creeperlauncher.Instances.loadInstance(Instances.java:69)
at net.creeperhost.creeperlauncher.Instances.refreshInstances(Instances.java:52)
at net.creeperhost.creeperlauncher.CreeperLauncher.main(CreeperLauncher.java:119)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at com.exe4j.runtime.LauncherEngine.launch(LauncherEngine.java:84)
at com.exe4j.runtime.WinLauncher.main(WinLauncher.java:94)
at com.install4j.runtime.launcher.WinLauncher.main(WinLauncher.java:25)
Uncaught error fetching image:
java.lang.NullPointerException
at java.desktop/sun.awt.image.URLImageSource.getConnection(URLImageSource.java:101)
at java.desktop/sun.awt.image.URLImageSource.getDecoder(URLImageSource.java:111)
at java.desktop/sun.awt.image.InputStreamImageSource.doFetch(InputStreamImageSource.java:263)
at java.desktop/sun.awt.image.ImageFetcher.fetchloop(ImageFetcher.java:212)
at java.desktop/sun.awt.image.ImageFetcher.run(ImageFetcher.java:176)
 
Looks like something might be blocking - do you have any 3rd party antivirus software installed on your machine?
 
Try re-installing the app and the packs. (take backups of the saved worlds first if you have any)
 
Do a uninstall and also delete these folders manually:

press windows key +r and type %appdata% and then OK

Remove these 2 folders:
FTBA
ftb-app

Also check if there's a folder called .ftba under
c:\users\YOURUSERNAME
and delete that folder as well.

Then re-install.

And remember the backups first.
 
grandrolf said:
Do a uninstall and also delete these folders manually:

press windows key +r and type %appdata% and then OK

Remove these 2 folders:
FTBA
ftb-app

Also check if there's a folder called .ftba under
c:\users\YOURUSERNAME
and delete that folder as well.

Then re-install.

And remember the backups first.
Click to expand...
YAAAAAAAAAAYYYYYYYYY that worked!!!! thank you so much for your help!! it was the .ftba folder in the users slot that was the issue!!!! youre a life saver!
 
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