Manifest and Permission Issues

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Wildcard Permission Rejection

error: wildcard contract permission detected
  --> manifest generation
   |
   = note: contract call to dynamic target requires {"contract":"*","methods":"*"}
   = help: use --manifest-permissions to supply explicit overrides, or remove --deny-wildcard-contracts

Cause: Your code calls a contract through a dynamic address (not a compile-time constant), and you compiled with --deny-wildcard-contracts.

Solutions:

1. Replace dynamic calls with fixed-target wrappers:

   // ❌ Dynamic target — forces wildcard permission
   Syscalls.contractCall(dynamicAddr, "transfer", ...);
   
   // ✅ Fixed target — generates specific permission
   NativeCalls.gasTransfer(from, to, amount, "");

2. If dynamic dispatch is unavoidable, supply explicit permissions:

   neo-solc MyContract.sol -I devpack \
     --manifest-permissions '{"contract":"0xabcd...","methods":["transfer"]}' \
     -o build/MyContract

3. Remove the strict flags for development (not recommended for production):

   neo-solc MyContract.sol -I devpack -o build/MyContract
   # Without --deny-wildcard-contracts, wildcards are allowed with a warning

Standards Not Detected

info: contract does not implement any recognized NEP standard
  --> manifest generation
   |
   = note: supportedstandards will be empty

Cause: The compiler's auto-detection didn't find a complete set of required methods.

Checklist for NEP-17 detection:

• [ ] symbol() — public/external, returns string
• [ ] decimals() — public/external, returns integer
• [ ] totalSupply() — public/external, returns integer
• [ ] balanceOf(address) — public/external, returns integer
• [ ] transfer(address, address, uint256, Any) — public/external, 4 parameters
• [ ] ownerOf must NOT be present (its presence triggers NEP-11 instead)

Checklist for NEP-11 detection:

• [ ] balanceOf(address) AND ownerOf(bytes32) both present
• [ ] At least one of: transfer, transferFrom, tokensOf

TIP

After compilation, verify detection results:

cat build/MyContract/MyContract.manifest.json | jq '.supportedstandards'

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