"no main manifest attribute" when trying to run Minetweaker

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"no main manifest attribute" when trying to run Minetweaker

Postby Dragonbahn » Wed Jul 24, 2019 8:18 pm

Nothing happens when I try to run the .jar to open minetweaker 3.0.10B
Other jar files such as optifine work fine so it's not a association issue on my end.
When I try to run it with the java -jar "filename".jar command in Powershell (with admin on) i get the error "no main manifest attribute." It seems there is something wrong with the file itself but I havent been able to get any other versions of MT3 working. I don't know how to extract and fix the java code myself either.
Please, I'm at wits end here.
Dragonbahn
 

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