push 시에 remote error 질문

remote: error: GH001: Large files detected. You may want to try Git Large File Storage - https://git-lfs.github.com.

remote: error: Trace: 3132d2271d3841301d016bcad034727ad611334ac6c79a90d632587e8d4baf51

remote: error: See http://git.io/iEPt8g for more information.

remote: error: File .next/cache/webpack/client-development/2.pack is 229.30 MB; this exceeds GitHub's file size limit of 100.00 MB

remote: error: File .next/cache/webpack/client-development/11.pack is 

331.46 MB; this exceeds GitHub's file size limit of 100.00 MB

remote: error: File .next/cache/webpack/client-development/26.pack is 

102.01 MB; this exceeds GitHub's file size limit of 100.00 MB

remote: error: File .next/cache/webpack/client-development/56.pack is 

134.46 MB; this exceeds GitHub's file size limit of 100.00 MB

remote: error: File .next/cache/webpack/client-development/10.pack is 

112.58 MB; this exceeds GitHub's file size limit of 100.00 MB

remote: error: File .next/cache/webpack/client-development/39.pack is 

112.78 MB; this exceeds GitHub's file size limit of 100.00 MB

To https://github.com/youngnrichh/instagram-clone.git

 ! [remote rejected] main -> main (pre-receive hook declined)

error: failed to push some refs to 'https://github.com/youngnrichh/instagram-clone.git'

보니까 .next 파일 메모리가 100mb넘어서 에러뜨는것같은데

.gitignore에 .next를 넣었는데도 불구하고 푸쉬할때마다 이런게 계속뜹니다.

구글링해서 여러가지 방법해보고  git rm -r --cached .  이거하고 커밋하고 푸쉬해봐도 안되네요... 

어떻게 방법이 없을까요?