`Error: Idl(MissingOrInvalidProgramItems("account mod: struct not found"))` when running `trident inti`

[cryptopapi997]

Hey guys,

I have a project using Anchor 0.30.0 on which I'm trying to run trident init. An important specification here is I have anchor-spl as a dependency and I have it as version 0.30.0 as downgrading to 0.29.0 (like the docs recommend) would break everything in my program. Additionally, I tested a different 0.30.0 program with anchor-spl at 0.30.0 as well and there it worked fine.

My issue is, when I try to run trident init on this project it keeps giving me Error: Idl(MissingOrInvalidProgramItems("account mod: struct not found")). I tried checking the source code, but I'm not exactly sure what this error means exactly. I tried deleting most of my program so that all that gets generated as an idl is the below, but still the same issue. Any tips on how to fix this?

{
  "address": "85R8U76mZMurovUW3Houj4oeJ4W3SH6PXbJuHoMzbQDZ",
  "metadata": {
    "name": "my_program",
    "version": "0.1.0",
    "spec": "0.1.0"
  },
  "docs": [
    "Some docs"
  ],
  "instructions": [],
  "errors": [
    {
      "code": 6000,
      "name": "MyError1"
    },
    {
      "code": 6001,
      "name": "MyError2"
    },
    {
      "code": 6002,
      "name": "MyError3"
    },
    {
      "code": 6003,
      "name": "MyError4"
    }
  ]
}

[lukacan]

Hello, we will look into it, do you have the source code available in any repository? :)

[cryptopapi997]

Yes, but it's closed source. Let me try creating a MRE and get back to you

[cryptopapi997]

Alright, added an MRE here:

https://github.com/cryptopapi997/trident-mre

I just tried it again with a fresh git clone and trident init and it throws the same error.

Small thing to note: This uses the latest commit from the anchor repo instead of the official 0.30.0 release. You can switch it to 0.30.0 if you'd like, it still throws the same error

[Ikrk]

The problem is in the name of the context struct InitPersistentMXE which is converted by Anchor to kebab case as init_persistent_mxe and then by Trident back to camel case as InitPersistentMxe which does not correspond to the original name and is thus not found.

As a temporary workaround, if you rename InitPersistentMXE to InitPersistentMxe, then the Trident initialization (of your MRE) works.

[cryptopapi997]

Makes sense, thank you! I understand changing this is no simple undertaking as it would require parsing the names from Rust directly. However, I feel like if the error message specified the (incorrectly spelled) struct that caused this, it would've been a lot easier to guess what the problem is without bothering you guys. Opened a quick PR for this here: https://github.com/Ackee-Blockchain/trident/pull/164

[cryptopapi997]

Can be closed since https://github.com/Ackee-Blockchain/trident/pull/164 was merged