Getting conflicting implementation error while adding custom pallet

Question

We had changed the code in pallet template and was trying to add it in substrate node-template runtime. Link to [github code]2

Got the following .

After answer updated following new error:

Error - Compiling node-template-runtime v4.0.0-dev (/data/Network-marketing/runtime) error: failed to run custom build command for node-template-runtime v4.0.0-dev (/data/Network-marketing/runtime)

Caused by: process didn't exit successfully: /data/Network-marketing/target/release/build/node-template-runtime-55554732df6f82a1/build-script-build (exit status: 1) --- stdout Information that should be included in a bug report. Executing build command: "rustup" "run" "nightly" "cargo" "rustc" "--target=wasm32-unknown-unknown" "--manifest-path=/data/Network-marketing/target/release/wbuild/node-template-runtime/Cargo.toml" "--color=always" "--profile" "release" Using rustc version: rustc 1.65.0-nightly (02654a084 2022-08-30)

--- stderr Compiling node-template-runtime v4.0.0-dev (/data/Network-marketing/runtime) error[E0119]: conflicting implementations of trait core::convert::TryFrom<OriginCaller> for type frame_system::RawOrigin<[type error]> --> /data/Network-marketing/runtime/src/lib.rs:284:1 | 284 | construct_runtime!( | ^ | || | || 285 | || pub enum Runtime 286 | || where 287 | || Block = Block, ... || 302 | || } 303 | || ); | ||_- in this macro invocation ... | | = note: conflicting implementation in crate core: - impl<T, U> TryFrom for T where U: Into; = note: this error originates in the macro frame_support::construct_runtime which comes from the expansion of the macro construct_runtime (in Nightly builds, run with -Z macro-backtrace for more info)

For more information about this error, try rustc --explain E0119. error: could not compile node-template-runtime due to previous errorenter code here

Answer 1

The problem is this line in your custom pallet template:

pub use frame_system::pallet::*;

With this line, you have basically exported the entire frame_system Pallet into your file, which makes all of the pallet template imports look like frame system.

You should change this line to:

pub use pallet::*;

As seen here: https://github.com/substrate-developer-hub/substrate-node-template/blob/main/pallets/template/src/lib.rs#L6

I am interested to know how you got to this error, and what you were trying to do. Does some tutorial tell you to do this?