electron-rebuild 编译遇到的奇葩问题

.\node_modules\.bin\electron-rebuild.cmd

环境：

系统：win10
"dependencies": {"core-js": "^3.6.5","electron-rebuild": "^3.2.3","escpos-serialport": "^3.0.0-alpha.4","vue": "^2.6.11"
},
"devDependencies": {"@vue/cli-plugin-babel": "~4.5.0","@vue/cli-plugin-eslint": "~4.5.0","@vue/cli-service": "~4.5.0","babel-eslint": "^10.1.0","electron": "^13.0.0","electron-devtools-installer": "^3.1.0","electron-prebuilt": "^1.4.13","electron-rebuild": "^3.2.3","eslint": "^6.7.2","eslint-plugin-vue": "^6.2.2","serialport": "^9.2.1","vue-cli-plugin-electron-builder": "~2.1.1","vue-template-compiler": "^2.6.11"},

小知识：你安装electron-rebuild之后要把它运动到dependencies中

执行之后报错如下：

File "F:\my\code\electron\my-electron\node_modules\_node-gyp@8.2.0@node-gyp\gyp\gyp_main.py", line 45, in <module>
    sys.exit(gyp.script_main())
File "F:\my\code\electron\my-electron\node_modules\_node-gyp@8.2.0@node-gyp\gyp\pylib\gyp\__init__.py", line 662, in script_main
    return main(sys.argv[1:])
File "F:\my\code\electron\my-electron\node_modules\_node-gyp@8.2.0@node-gyp\gyp\pylib\gyp\__init__.py", line 654, in main
    return gyp_main(args)
File "F:\my\code\electron\my-electron\node_modules\_node-gyp@8.2.0@node-gyp\gyp\pylib\gyp\__init__.py", line 629, in gyp_main
    options.circular_check,
File "F:\my\code\electron\my-electron\node_modules\_node-gyp@8.2.0@node-gyp\gyp\pylib\gyp\__init__.py", line 151, in Load
    params["root_targets"],
⠼ Building module: bindings, Completed: 0 File "F:\my\code\electron\my-electron\node_modules\_node-gyp@8.2.0@node-gyp\gyp\pylib\gyp\input.py", line 3010, in Load
    build_file, data, aux_data, variables, includes, depth, check, True
File "F:\my\code\electron\my-electron\node_modules\_node-gyp@8.2.0@node-gyp\gyp\pylib\gyp\input.py", line 428, in LoadTargetBuildFile
    build_file_data, PHASE_EARLY, variables, build_file_path
File "F:\my\code\electron\my-electron\node_modules\_node-gyp@8.2.0@node-gyp\gyp\pylib\gyp\input.py", line 1411, in ProcessVariablesAndConditionsInDict
    ProcessVariablesAndConditionsInList(value, phase, variables, build_file)
File "F:\my\code\electron\my-electron\node_modules\_node-gyp@8.2.0@node-gyp\gyp\pylib\gyp\input.py", line 1424, in ProcessVariablesAndConditionsInList
    ProcessVariablesAndConditionsInDict(item, phase, variables, build_file)
File "F:\my\code\electron\my-electron\node_modules\_node-gyp@8.2.0@node-gyp\gyp\pylib\gyp\input.py", line 1411, in ProcessVariablesAndConditionsInDict
    ProcessVariablesAndConditionsInList(value, phase, variables, build_file)
File "F:\my\code\electron\my-electron\node_modules\_node-gyp@8.2.0@node-gyp\gyp\pylib\gyp\input.py", line 1428, in ProcessVariablesAndConditionsInList
    expanded = ExpandVariables(item, phase, variables, build_file)
File "F:\my\code\electron\my-electron\node_modules\_node-gyp@8.2.0@node-gyp\gyp\pylib\gyp\input.py", line 979, in ExpandVariables
    p_stdout = p_stdout.decode("utf-8")
AttributeError: 'str' object has no attribute 'decode' while trying to load binding.gyp
✖ Rebuild Failed

An unhandled error occurred inside electron-rebuild
node-gyp failed to rebuild 'F:\my\code\electron\my-electron\node_modules\_@serialport_bindings@9.2.1@@serialport\bindings'.
For more information, rerun with the DEBUG environment variable set to "electron-rebuild".

Error: `gyp` failed with exit code: 1

Error: node-gyp failed to rebuild 'F:\my\code\electron\my-electron\node_modules\_@serialport_bindings@9.2.1@@serialport\bindings'.

就很 "shabi"，我系统的python版本就是2.7.3的（也切换3.7尝试也不行），可是还是报这个错误。

最后解决方案就是修改源码（同时也把python版本指向2.7）

1.编辑器打开这个源码文件

2.修改源码

然后再次运行

.\node_modules\.bin\electron-rebuild.cmd

就搞定了，真 "shabi"。

补充，下面查看npm执行的时候使用的配置

npm config get userconfig

把这里的python设置成python，就会根据你配置的环境变量来使用python版本

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