How to upload dsyms files which developed with Flutter?

I am developing one Cross-platform app with flutter support. I Integrated firebase Crashlytics for crash reports. before I need to check report one error message comes

Upload 1 missing dSYM required to process 4 crashes

for that, I tried firebase docs

Get deobfuscated crash reports

also, I followed steps to build iOS Archive with flutter

Preparing an iOS App for Release

Still, There is the same issue on firebase portal

Upload 1 missing dSYM required to process 4 crashes

I tried this many times but still not done yet.

If someone has Idea then please help me to fix this issue.

Thanks, Community

from How to upload dsyms files which developed with Flutter?