Truffle-test 上的衝突 solc 版本

我正在開發一些使用 solc 0.7.0 的智能合約。我能夠成功編譯和部署契約，但是當我嘗試執行 $truffle test 時，我收到以下錯誤：

Using network 'development'.

Compiling your contracts...
===========================
> Compiling ./test/TestSupperApp.sol

truffle/Assert.sol:5:1: ParserError: Source file requires different compiler version (current compiler is 0.7.0+commit.9e61f92b.Emscripten.clang) - note that nightly builds are considered to be strictly less than the released version
pragma solidity >= 0.4.15 < 0.7.0;
^--------------------------------^
,truffle/DeployedAddresses.sol:2:1: ParserError: Source file requires different compiler version (current compiler is 0.7.0+commit.9e61f92b.Emscripten.clang) - note that nightly builds are considered to be strictly less than the released version
pragma solidity >= 0.7.0 < 0.7.0; 
^-------------------------------^

Error: Truffle is currently using solc 0.7.0, but one or more of your contracts specify "pragma solidity >= 0.4.15 < 0.7.0".
Please update your truffle config or pragma statement(s).
(See https://truffleframework.com/docs/truffle/reference/configuration#compiler-configuration for information on
configuring Truffle to use a specific solc compiler version.)

Compilation failed. See above.
Truffle v5.1.41 (core: 5.1.41)
Node v11.14.0

這是測試程式碼的開始：

// SPDX-License-Identifier: MIT
pragma solidity >=0.4.22 <0.8.0;

import "truffle/Assert.sol";
import "truffle/DeployedAddresses.sol";
import "../contracts/SuperApp.sol";

contract TestSuperApp
{

我的 truffle-config 的編譯器配置如下所示：

 // Configure your compilers
 compilers: {
   solc: {
     version: "0.7.0",    // Fetch exact version from solc-bin (default: truffle's version)
     // docker: true,        // Use "0.5.1" you've installed locally with docker (default: false)
     // settings: {          // See the solidity docs for advice about optimization and evmVersion
     //  optimizer: {
     //    enabled: false,
     //    runs: 200
     //  },
     //  evmVersion: "byzantium"
     // }
   },
 },

DeployedAddresses.sol 如何要求編譯器使用 >=0.7.0 AND <0.7.0？我該如何解決？

（OBS.：顯然我應該更改pragma語句，但是由於DeployedAddresses.sol是在測試時動態創建的，所以似乎無法直接更改它）

你應該參考你應該為松露使用什麼版本的solidity編譯器。這可以在 truffle-config.js 中更新。

compilers: {
   solc: {
     version: "^0.7.0"
   }
}

（有關配置 Truffle 以使用特定的 solc 編譯器版本的資訊，請參閱https://trufflesuite.com/docs/truffle/reference/configuration#compiler-configuration 。）

然後，您應該確保所有智能合約和智能合約測試都使用此編譯器功能。

pragma solidity ^0.7.0;

如果您再次提及該錯誤，則表明合約與solidity 編譯器版本不匹配。(Assert.sol / DeployedAddresses.sol) - 只需更新 pragma 語句以引用上述版本並匹配從 truffle-config.js 設置的內容，您應該會很好。

引用自：https://ethereum.stackexchange.com/questions/86835