eclipse OpenCV 本机示例未构建

OpenCV Native Samples are not building

提问by Armon-LUStudent

I have spent a long while trying to get this thing to work, and I think my error is very trivial but I have been unable to fix it. Plus, I know there have been questions about this before but none have helped me solve my issue.

我花了很长时间试图让这件事发挥作用，我认为我的错误非常微不足道，但我一直无法修复它。另外，我知道以前有人对此提出过问题，但没有一个能帮助我解决我的问题。

I am using the android-opencv library in eclipse juno

我在 eclipse juno 中使用 android-opencv 库

When I build the sample, I will use sample 4 as an example, I get this message in my console:

当我构建示例时，我将使用示例 4 作为示例，我在控制台中收到此消息：

15:29:35 **** Build of configuration Default for project org.opencv.samples.tutorial4.Sample4Mixed ****
"C:\dev\android-ndk-re8b-windows\ndk-build.cmd" 
Cannot run program "C:\dev\android-ndk-re8b-windows\ndk-build.cmd": Launching failed

Error: Program "C:\dev\android-ndk-re8b-windows\ndk-build.cmd" not found in PATH
PATH=[C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Program Files\Common Files\Microsoft Shared\Windows Live;C:\Program Files (x86)\Common Files\Microsoft Shared\Windows Live;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\ThinkPad\Bluetooth Software\;C:\Program Files\ThinkPad\Bluetooth Software\syswow64;C:\Program Files\Broadcom\WHL\;C:\Program Files\Broadcom\WHL\syswow64;C:\Program Files\Broadcom\WHL\SysWow64\;C:\Program Files\Broadcom\WHL\SysWow64\syswow64;C:\Program Files (x86)\Common Files\Lenovo;C:\Program Files (x86)\Common Files\Ulead Systems\MPEG;C:\Program Files (x86)\Windows Live\Shared;C:\SWTOOLS\ReadyApps;C:\Program Files (x86)\Intel\Services\IPT\;C:\Program Files (x86)\MATLAB\R2011a Student\bin;c:\Program Files (x86)\Microsoft SQL Server0\Tools\Binn\;c:\Program Files\Microsoft SQL Server0\Tools\Binn\;c:\Program Files\Microsoft SQL Server0\DTS\Binn\;C:\Program Files\TortoiseSVN\bin;C:\Program Files (x86)\Git\cmd;C:\Program Files (x86)\QuickTime\QTSystem\;C:\Program Files (x86)\Symantec\VIP Access Client\;C:\Program Files (x86)\SSH Communications Security\SSH Secure Shell]

15:29:35 Build Finished (took 54ms)

Where are the double \'s coming from?!

双\从哪里来？！

Also I did define my environmental variable NDKROOT to be the absolute path to my ndk. But to be even more safe, I defined it again in my properties->c/c++ build path.

此外，我确实将环境变量 NDKROOT 定义为 ndk 的绝对路径。但为了更安全，我在我的 properties->c/c++ 构建路径中再次定义了它。

HELP

帮助

回答by Noha Kareem

Try the following steps:

尝试以下步骤：

1. Head to the project's properties. If you're using Windows, the shortcut is Alt + Enter; or simply right-click the project name to find its properties.

2. Go to the C/C++ Buildsection; under Builder Settingstab in Build command:text box you're likely to find something similar to that below, if it's empty then type in the similar text - namely: ${NDKROOT}/ndk-build.cmdwhere NDKROOT, as its name implies, refers to the path where your NDK root folder exists.

3. Now you must inform eclipse what NDKROOTequates to; as in, where is the NDK root path. You can do this by heading to (in your project's properties) C/C++ Build> Environment> press Add…

4. Now add your environment variable named NDKROOT (the Name) with the relevant path (Value). Note that you're to repeat this per NDK project. You would get a window similar to that below.

5. Press OKto the New variableinput window and then OKagain to the properties window.

1. 前往项目的属性。如果您使用的是 Windows，则快捷方式是Alt + Enter; 或者只需右键单击项目名称以查找其属性。

2. 转到该C/C++ Build部分；Builder Settings在Build command:文本框中的选项卡下，您可能会找到与下面类似的内容，如果它为空，则输入类似的文本 - 即：${NDKROOT}/ndk-build.cmdwhere NDKROOT，顾名思义，指的是您的 NDK 根文件夹所在的路径。

3. 现在你必须告诉 eclipse 什么NDKROOT等同于；例如，NDK 根路径在哪里。您可以通过前往（在您的项目的属性中）C/C++ Build> Environment> 按Add…

4. 现在Name使用相关路径 ( Value)添加名为 NDKROOT (the ) 的环境变量。请注意，您将在每个 NDK 项目中重复此操作。你会得到一个类似于下面的窗口。

5. 按OK到新变量输入窗口，然后再按OK到属性窗口。

回答by puputCantik

If you use Windows 7, you can set it like this:

如果你使用 Windows 7，你可以这样设置：

1. Right click on "My Computer"
2. Click on "Properties"
3. Click on "Advanced System"
4. Make a new variable NDKROOT
5. Change the value to your NDK path
6. Restart Eclipse
7. Click "OK"

1. 右键单击“我的电脑”
2. 点击“属性”
3. 点击“高级系统”
4. 创建一个新变量 NDKROOT
5. 将值更改为您的 NDK 路径
6. 重启 Eclipse
7. 点击“确定”