Minecraft not starting in eclipse

[zSlaiTz]

https://imgur.com/a/YqclaGv 

 

can someone help me it happens every time I start Minecraft in eclipse. I'm not that good at mod programming yet. And it's my first mod

[ChampionAsh5357]

1.12.2 is not supported on the forums. The current versions supported can be found in the blue banner above. Forge usually supports the latest version and one major behind for LTS. Although, that does change depending on popularity.