# Jason problim help **URL:** \ **Category:** Uncategorized\ **Created:** [October 30, 2025, 11:46pm UTC](https://forum.p4.org/t/jason-problim-help/1397 "2025-10-30T23:46:29Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![haider.ali.etcn12](https://avatars.discourse-cdn.com/v4/letter/h/b5ac83/32.png) [@haider.ali.etcn12](https://forum.p4.org/u/haider.ali.etcn12)\ **Post date:** [October 30, 2025, 11:46pm UTC](https://forum.p4.org/t/jason-problim-help/1397/1 "2025-10-30T23:46:29Z")
hello everyone i really need a help i am facing a problem with convert my p4 code to a json file every time i’m getting a different problem haider@haider:~/Desktop/p4-l2-switch-project$ p4c -I /usr/local/share/p4c/p4include --target bmv2 --arch v1model l2\_learning\_switch.p4 -o l2\_learning\_switch.json l2\_learning\_switch.p4(31): [–Werror=not-found] error: standard\_metadata: declaration not found standard\_metadata.egress\_spec = port; ^^^^^^^^^^^^^^^^^ l2\_learning\_switch.p4(38): [–Werror=not-found] error: standard\_metadata: declaration not found standard\_metadata.egress\_spec = port; ^^^^^^^^^^^^^^^^^ l2\_learning\_switch.p4(51): [–Werror=not-found] error: \_drop: declaration not found \_drop; ^^^^^ haider@haider:~/Desktop/p4-l2-switch-project$ ---
**Author:** ![andyfingerhut](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.p4.org/andyfingerhut/32/17_2.png) [@andyfingerhut](https://forum.p4.org/u/andyfingerhut)\ **Post date:** [October 31, 2025, 4:44pm UTC](https://forum.p4.org/t/jason-problim-help/1397/2 "2025-10-31T16:44:04Z")
I believe the same question was asked on this Github issue, and a couple of people have replied there. Adding a link to it here for anyone that wants to follow along, or join in: [I cannot convert my P4 file to Jason File · Issue #5412 · p4lang/p4c · GitHub](https://github.com/p4lang/p4c/issues/5412#issuecomment-3470865340)