1002: Verification Error: Runtime error: Execution failed: Execution aborted due to trap: wasm trap: wasm `unreachable`

Question

I've added pallet-nft and pallet-uniques in Relay Chain. All the things are working fine but when I'm signing the transaction in the pallet-uniques fn create(collection,admin), it is showing me this error:

1002: Verification Error: Runtime error: Execution failed: Execution aborted due to trap: wasm trap: wasm unreachable instruction executed WASM backtrace: 0: 0x547257 - !rust_begin_unwind 1: 0x54ee - !core::panicking::panic_fmt::hca80ede79c2b9c5b 2: 0x29ff1c - !TaggedTransactionQueue_validate_transaction : RuntimeApi, Execution failed: Execution aborted due to trap: wasm trap: wasm unreachable instruction executed\nWASM backtrace:\n\n 0: 0x547257 - !rust_begin_unwind\n 1: 0x54ee

Answer 1

You probably need to specify custom types.json in polkadot.js.org. These links might be helpful:

1. https://polkadot.js.org/docs/api/start/types.extend/
2. https://stackoverflow.com/questions/68487857/how-to-generate-types-json-in-substrate

Also, try to clear the browser cache.

Answer 2

You may check your implementation of WeightInfo in runtime/src.

In my case, I had a runtime/src/weight.rs file with some functions left without weight benchmarking, I just had a bunch of todo!() macros. The problem was resolved when I replaced them with actual weights.