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Adding an interface contract breaks compilation for Solidity

See original GitHub issue

Environment information

brownie Version: 1.11.0
ganache-cli Version: n/a
solc Version: n/a
Python Version: 3.7
OS: osx

What was wrong?

brownie init
ln -s <compound-protocol-clone/contracts> contracts/

This sets up a basic repository that uses compound contracts from an external folder and can be compiled with

brownie compile

However, when I add an interface either by copying ComptrollerInterface.sol to an interfaces folder or by symlinking ComptrollerInterface.sol within interfaces, compilation fails with these errors:

Compiling contracts...
  Solc version: 0.5.17
  Optimizer: Enabled  Runs: 200
  EVM Version: Istanbul
CompilerError: solc returned the following errors:

contracts/Comptroller.sol:3:1: ParserError: Source "contracts/CToken.sol" not found: File outside of allowed directories.
import "./CToken.sol";
^--------------------^

contracts/Comptroller.sol:4:1: ParserError: Source "contracts/ErrorReporter.sol" not found: File outside of allowed directories.
import "./ErrorReporter.sol";

... continues - 1 for each contract

How can it be fixed?

Feels like adding the interface may change the working solc directory?

Issue Analytics

State:
Created 3 years ago
Comments:5 (3 by maintainers)

Top GitHub Comments

1reaction

sabotagebeatscommented, Sep 3, 2020

I think I was able to fix it by recursively copying node_modules/* to interfaces/

but now i have a new error NamespaceCollision: Multiple contracts or interfaces with the same name

update: I was able to use this to fix and now my project is compiling https://github.com/iearn-finance/vaults/blob/master/brownie-config.yaml#L9

0reactions

sabotagebeatscommented, Sep 3, 2020

`/brownie$ brownie compile Brownie v1.11.0 - Python development framework for Ethereum

Compiling contracts… Solc version: 0.7.1 Optimizer: Enabled Runs: 200 EVM Version: Istanbul CompilerError: solc returned the following errors:

contracts/testtoken.sol:5:1: ParserError: Source “@openzeppelin/contracts/token/ERC20/ERC20Pausable.sol” not found: File outside of allowed directories. import “@openzeppelin/contracts/token/ERC20/ERC20Pausable.sol”; ^-------------------------------------------------------------^

contracts/testtoken.sol:6:1: ParserError: Source “@openzeppelin/contracts/access/Ownable.sol” not found: File outside of allowed directories. import “@openzeppelin/contracts/access/Ownable.sol”; ^--------------------------------------------------^ `

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