antlr4-tool 在 Win10 中失败:错误:命令失败:which java [英] antlr4-tool fails in Win10 with: Error: Command failed: which java
问题描述
在Win10下运行,为了尝试在Node.JS中创建解析器,我安装了ANTLR4工具:
Running in Win10, in an attempt to create a parser in Node.JS, I installed ANTLR4 tool:
npm install --save-dev antlr4-tool
跑:
c:/prj/parser/node_modules/.bin/antlr4-tool.cmd -o parser grammar/Lang.g4
但是收到了:
Compiling grammar/Lang.g4...
'which' is not recognized as an internal or external command,
operable program or batch file.
child_process.js:677
throw err;
^
Error: Command failed: which java
'which' is not recognized as an internal or external command,
operable program or batch file.
at checkExecSyncError (child_process.js:637:11)
at Object.execSync (child_process.js:674:13)
at c:\prj\parser\node_modules\antlr4-tool\dist\antlr-core\antlr-compiler.js:98:19
at chdir (c:\prj\parser\node_modules\chdir\index.js:6:13)
at AntlrCompiler.compileJavaScript (c:\prj\parser\node_modules\antlr4-tool\dist\antlr-core\antlr-compiler.js:97:9)
at AntlrCompiler.compileTypeScript (c:\prj\parser\node_modules\antlr4-tool\dist\antlr-core\antlr-compiler.js:62:38)
at c:\prj\parser\node_modules\antlr4-tool\dist\antlr-core\index.js:40:78
at c:\prj\parser\node_modules\antlr4-tool\dist\antlr-core\index.js:17:23
at arrayEach (c:\prj\parser\node_modules\lodash\lodash.js:516:11)
at Function.forEach (c:\prj\parser\node_modules\lodash\lodash.js:9344:14)
我安装了 Java,运行时可以看到它的位置:
I have Java install, and I can see its location when running:
where java
但由于我在 Windows 中,我不明白为什么命令是 which
而不是 where
...
But since I'm in Windows, I don't understand why the command is which
and not where
...
推荐答案
对于任何人来说,这是一个错误,显然源于 Linux 和 Windows 之间的差异(Linux 中的 which
命令是 where
在 Windows 中).
To whomever gets here, it's a bug, apprently stemming from the difference between Linux and Windows (which
command in Linux is where
in Windows).
要避免它,仅当您在 Windows 中工作时,请更改文件:
To W/A it, only if you work in Windows, change the file:
.../node_modules/antlr4-tool/dist/antlr-core/antlr-compiler.js
,第 98 行,来自:
.../node_modules/antlr4-tool/dist/antlr-core/antlr-compiler.js
, line #98, from:
child.execSync('which java');
到:
child.execSync('where java');
参见 https://github.com/mcchatman8009/antlr4-tool/issues/21
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