ParserError: Source "ВXuffle__NotFound.sol" not found: Callback not supported.

[Eknir]

I get the following error when running truffle run verify:

CompileError: /home/rinke/Projects/rds-contracts/contracts/ContentManagerI.sol:12:1: ParserError: Source "ВXuffle__NotFound.sol" not found: Callback not supported.
import '__Truffle__NotFound.sol';

My environment: solc version 6.1 truffle-security version 1.6.2

contract directory:

PinningManager.sol
Migrations.sol
ContentManager.sol
/vendor/SafeMath.sol

All contracts are with pragma solidity ^0.6.1;

If I delete the file ContentManagerI.sol, I get still an error:

CompileError: /home/rinke/Projects/rds-contracts/contracts/PinningManager.sol:3:1: ParserError: Source "yXe/rinke/Projects/rds-contracts/contracts/vendor/SafeMath.sol" not found: Callback not supported.
import "./vendor/SafeMath.sol";

Just running truffle compile works without problems

[krzysu]

I have the same issue when verifying with truffle with solidity configured to 0.6.2 but works fine with my truffle's default version - solidity 0.5.16.

truffle@5.1.11 truffle-security@1.7.1

truffle-config.js

compilers: {
  solc: {
    version: "0.6.2"
  }
}