源文件编译错误

Question

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Source file requires different compiler version (current compiler is 0.8.2+commit.661d1103.Emscripten.clang) - note that nightly builds are considered to be strictly less than the released version
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在块菌配置中，我设置了

...
  compilers: {
    solc: {
       version: "0.5.16",    // 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"
      // }
    }
  },
...

但是当我做松露测试时我会出错。

  TestFirst
    1) testAge
    > No events were emitted


  0 passing (25s)
  1 failing

  1) TestFirst
       testAge:
     Error: Returned error: VM Exception while processing transaction: revert
      at Context.<anonymous> (C:\Users\92311\AppData\Roaming\npm\node_modules\truffle\build\webpack:\packages\core\lib\testing\SolidityTest.js:92:1)
      at runMicrotasks (<anonymous>)
      at processTicksAndRejections (internal/process/task_queues.js:93:5)
...

Answer 1

你需要改变：

编译器：{ solc：{版本："0.8.2"，

..。