Step 2: Compile the Contract

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Overview

./target/release/neo-solc MyStorage.sol -I devpack -O2 -o build/MyStorage

Flags explained:

Flag	Purpose
MyStorage.sol	Input Solidity source file
-I devpack	Add the devpack/ directory as an import search path (provides Neo N3 library interfaces)
-O2	Optimization level 2 (standard optimization: inlining, peephole, DCE, constant folding)
-o build/MyStorage	Output prefix -- generates build/MyStorage.nef and build/MyStorage.manifest.json

Verbose output (with -v) is diagnostic and may add or reorder lines between compiler releases. Current output reports the resolved inputs, selected optimization level, emitted artifacts, manifest processing, and any warnings:

./target/release/neo-solc MyStorage.sol -I devpack -O2 -v -o build/MyStorage

You should end the command with both artifacts present:

ls build/MyStorage.nef build/MyStorage.manifest.json