• 0
Shazzer

mac
Please help. Mac Launcher Issues

Question

Ho guys. Ive been trying to install this for days. I have JDK 8 and JRE 9 and the most recent mac os java installed and have my firewall off. I then download the launcher and open the file. i then get the logo come up with the install load bar for about 1 second and then it changes to only the logo and freezes forever. Please help. Thanks

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4 answers to this question

  • 0

Hi guys,

I encounter the very same issue. Attached you can find the logs (java.lang.IllegalArgumentException: object is not an instance of declaring class)

Thanks a lot!

[B#353] 2017/10/07 12:48:16 [INFO] OS: mac os x
[B#353] 2017/10/07 12:48:16 [INFO] Identified as osx
[B#353] 2017/10/07 12:48:16 [SEVERE] java.lang.IllegalArgumentException: object is not an instance of declaring class
[B#353] 2017/10/07 12:48:16 [SEVERE] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[B#353] 2017/10/07 12:48:16 [SEVERE] 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
[B#353] 2017/10/07 12:48:16 [SEVERE] 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
[B#353] 2017/10/07 12:48:16 [SEVERE] 	at java.base/java.lang.reflect.Method.invoke(Unknown Source)
[B#353] 2017/10/07 12:48:16 [SEVERE] 	at net.technicpack.launcher.LauncherMain.startLauncher(LauncherMain.java:299)
[B#353] 2017/10/07 12:48:16 [SEVERE] 	at net.technicpack.launcher.LauncherMain.main(LauncherMain.java:194)
[B#353] 2017/10/07 12:48:16 [SEVERE] Unhandled Exception in Thread[main,5,main]
java.lang.IllegalArgumentException: object is not an instance of declaring class
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.base/java.lang.reflect.Method.invoke(Unknown Source)
	at net.technicpack.launcher.LauncherMain.startLauncher(LauncherMain.java:299)
	at net.technicpack.launcher.LauncherMain.main(LauncherMain.java:194)

 

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  • 0

Both of you should remove Java 9. It is too new, and doesn't work with the launcher (and especially not with Forge) yet.

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4 hours ago, JaariAtmc said:

Both of you should remove Java 9. It is too new, and doesn't work with the launcher (and especially not with Forge) yet.

This  worked! Thankj you i can finally play haha

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On 10/7/2017 at 7:06 PM, Shazzer said:

This  worked! Thankj you i can finally play haha

 

On 10/7/2017 at 2:39 PM, JaariAtmc said:

Both of you should remove Java 9. It is too new, and doesn't work with the launcher (and especially not with Forge) yet.

Which Should I Downgrade it to? And How Do I Remove Java 9??

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