我正在尝试在我的 React 应用程序中使用 opencv4nodejs 模块。
具有 12 个 CPU 的 Ubuntu 18.04.3 LTS
当我安装在我的应用程序目录中时，我有一个看似成功的自动构建
npm install --save opencv4nodejs
opencv 模块确实已添加到我的 node_modules 文件夹中，并且“opencv4nodejs”已正确添加到我的 package.json 文件中，作为我的 React 应用程序中的依赖项（使用 create-react-app@3.0.1 创建）
但是，如果我尝试将模块导入我的 App.js 文件，则会引发 TypeError。
import cv from "opencv4nodejs";
整个错误输出附加TypeErrorOpenCV.txt
TypeError: Cannot read property '_handle' of undefined
(anonymous function)
1 | module.exports = function (blocking) {
2 | [process.stdout, process.stderr].forEach(function (stream) {
> 3 | if (stream._handle && stream.isTTY && typeof stream._handle.setBlocking === 'function') {
4 | stream._handle.setBlocking(blocking);
5 | }
6 | });
自动构建文件的完整终端输出为 opencvAutoBuildTerminalOutput.txt和 更多AutoBuildOpenCVtermoutput.txt
这是 Autobuild 完成期间结束的 WARN 行。
npm WARN @typescript-eslint/eslint-plugin@1.13.0 requires a peer of eslint@^5.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN @typescript-eslint/parser@1.13.0 requires a peer of eslint@^5.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN bootstrap@4.3.1 requires a peer of jquery@1.9.1 - 3 but none is installed. You must install peer dependencies yourself.
npm WARN bootstrap@4.3.1 requires a peer of popper.js@^1.14.7 but none is installed. You must install peer dependencies yourself.
npm WARN ts-pnp@1.1.2 requires a peer of typescript@* but none is installed. You must install peer dependencies yourself.
npm WARN tsutils@3.17.1 requires a peer of typescript@>=2.8.0 || >= 3.2.0-dev || >= 3.3.0-dev || >= 3.4.0-dev || >= 3.5.0-dev || >= 3.6.0-dev || >= 3.6.0-beta || >= 3.7.0-dev || >= 3.7.0-beta but none is installed. You must install peer dependencies yourself.
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.9 (node_modules/jest-haste-map/node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.9: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@2.0.7 (node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@2.0.7: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.9 (node_modules/chokidar/node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.9: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
我尝试通过将这些添加到 package.json 中的依赖项来自己安装对等依赖项，但是这给 eslint 带来了问题，因为实际上安装了一个 eslint，但不知何故未被识别。缺少对等依赖项是否会导致我的错误？
以下是 AutoBuild 输出中包含字符串“Fail”的行。
-- Performing Test HAVE_CXX_WMISSING_PROTOTYPES - Failed
-- Performing Test HAVE_CXX_WSTRICT_PROTOTYPES - Failed
-- Performing Test HAVE_C_WSIGN_PROMO - Failed
-- Performing Test HAVE_C_WNO_DELETE_NON_VIRTUAL_DTOR - Failed
-- Performing Test HAVE_CXX_WNO_UNNAMED_TYPE_TEMPLATE_ARGS - Failed
-- Performing Test HAVE_C_WNO_UNNAMED_TYPE_TEMPLATE_ARGS - Failed
-- Performing Test HAVE_C_FVISIBILITY_INLINES_HIDDEN - Failed
-- Performing Test HAVE_C_WNO_ABSOLUTE_VALUE - Failed
-- Performing Test HAVE_CXX_WNO_MISSING_PROTOTYPES - Failed
-- Performing Test HAVE_CXX_WNO_TAUTOLOGICAL_UNDEFINED_COMPARE - Failed
-- Performing Test HAVE_CXX_WNO_SHORTEN_64_TO_32 - Failed
-- Performing Test HAVE_CXX_WNO_ENUM_COMPARE_SWITCH - Failed
-- Performing Test HAVE_CXX_WNO_INCONSISTENT_MISSING_OVERRIDE - Failed
-- Failed to find installed gflags CMake configuration, searching for gflags build directories exported with CMake.
-- Failed to find gflags - Failed to find an installed/exported CMake configuration for gflags, will perform search for installed gflags components.
-- Failed to find gflags - Could not find gflags include directory, set GFLAGS_INCLUDE_DIR to directory containing gflags/gflags.h
-- Failed to find glog - Could not find glog include directory, set GLOG_INCLUDE_DIR to directory containing glog/logging.h
这是包含“未找到”的 Autobuild 行
-- Looking for ccache - not found
-- Looking for linux/videodev.h - not found
-- Looking for sys/videoio.h - not found
-- Module opencv_ovis disabled because OGRE3D was not found
-- Module opencv_sfm disabled because the following dependencies are not found: Glog/Gflags
这是来自 AutoBuild 的一般信息
-- General configuration for OpenCV 3.4.6 =====================================
-- Version control: 3.4.6
--
-- Extra modules:
-- Location (extra): /home/nicole/Documents/sdspage/canvas-app/node_modules/opencv-build/opencv/opencv_contrib/modules
-- Version control (extra): 3.4.6
--
-- Platform:
-- Timestamp: 2019-09-07T17:27:04Z
-- Host: Linux 5.0.0-27-generic x86_64
-- CMake: 3.10.2
-- CMake generator: Unix Makefiles
-- CMake build tool: /usr/bin/make
-- Configuration: Release
--
-- CPU/HW features:
-- Baseline: SSE SSE2 SSE3
-- requested: SSE3
-- Dispatched code generation: SSE4_1 SSE4_2 FP16 AVX AVX2 AVX512_SKX
-- requested: SSE4_1 SSE4_2 AVX FP16 AVX2 AVX512_SKX
-- SSE4_1 (12 files): + SSSE3 SSE4_1
-- SSE4_2 (1 files): + SSSE3 SSE4_1 POPCNT SSE4_2
-- FP16 (0 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 AVX
-- AVX (5 files): + SSSE3 SSE4_1 POPCNT SSE4_2 AVX
-- AVX2 (26 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2
-- AVX512_SKX (2 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2 AVX_512F AVX512_SKX
--
-- C/C++:
-- Built as dynamic libs?: YES
-- C++11: YES
-- C++ Compiler: /usr/bin/c++ (ver 7.4.0)