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[英]error LNK2001: unresolved external symbol in C++ with Node-Gyp
[英]use node-gyp exception : LNK2001 unresolved external symbol
使用 node-gyp 構建原生模塊(嘗試將 ffmpeg 用於我的 cpp 文件),它拋出異常:錯誤 LNK2001 未解析的外部符號
示例代碼:
index.cpp
#include <node.h>
extern "C"
{
#include "demo.h"
}
demo.h
int testFn();
demo.c
int testFn(){
return 0;
}
binding.gyp
{
"targets": [
{
"target_name": "addon",
"sources": [
"index.cpp"
],
"include_dirs": [
"<!@(node -p \"require('node-addon-api').include\")"
],
"dependencies": [
"<!(node -p \"require('node-addon-api').gyp\")"
]
}
]
}
構建錯誤信息
gyp ERR! build error
gyp ERR! stack Error: `C:\Program Files (x86)\Microsoft Visual Studio\2017\BuildTools\MSBuild\15.0\Bin\MSBuild.exe` failed with exit code: 1
gyp ERR! stack at ChildProcess.onExit (D:\node-v9.3.0-win-x64\node_modules\npm\node_modules\node-gyp\lib\build.js:258:23)
gyp ERR! stack at ChildProcess.emit (events.js:159:13)
gyp ERR! stack at Process.ChildProcess._handle.onexit (internal/child_process.js:209:12)
gyp ERR! System Windows_NT 10.0.18362
gyp ERR! command "D:\\node-v9.3.0-win-x64\\node.exe" "D:\\node-v9.3.0-win-x64\\node_modules\\npm\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild"
gyp ERR! cwd D:\createVideo
gyp ERR! node -v v9.3.0
gyp ERR! node-gyp -v v3.6.2
gyp ERR! not ok
npm ERR! code ELIFECYCLE
npm ERR! errno 1
有誰知道我在調用上述內容時可能做錯了什么? 謝謝你。
ps:我嘗試編輯binding.gyp文件(添加庫項)
{
"targets": [
{
"target_name": "addon",
"sources": [
"hello.cpp"
],
"libraries": [
"D:/lib/ffmpeg-4.2.1-win64-dev/lib/**"
],
"dependencies": [
"<!(node -p \"require('node-addon-api').gyp\")"
]
}
],
}
node-gyp 構建沒問題,但不能工作,運行 .js 文件以要求本機模塊異常錯誤:找不到指定的模塊。
您可能沒有包含庫文件
例如,你有一個帶有一些函數的頭文件
但函數從未聲明,因為 CPP 文件或庫不存在
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