title: Errors importing openCV in Eclipse wont go away?
body: <p>I'm using this guide:</p>
  
  <p><a href="http://opencv.itseez.com/doc/tutorials/introduction/android_binary_package/android_binary_package.html" rel="nofollow">http://opencv.itseez.com/doc/tutorials/introduction/android_binary_package/android_binary_package.html</a></p>
  
  <p>After I imported openCV, eclipse lists a bunch of errors, which are anticipated by the guide.</p>
  
  <p>But the guide says those errors should go away after hitting F5, or selecting "fix project properties" from the menu. I tried both. My errors wont go away. What am I doing wrong? </p>
  
  <p>From Eclipse:</p>
  
  <pre><code>Description Resource    Path    Location    Type
  The project cannot be built until build path errors are resolved    es2_globe       Unknown Java Problem
  The project cannot be built until build path errors are resolved    es2_water       Unknown Java Problem
  The project cannot be built until build path errors are resolved    event_accelerometer     Unknown Java Problem
  The project cannot be built until build path errors are resolved    event_lorenz        Unknown Java Problem
  The project cannot be built until build path errors are resolved    jniperftest     Unknown Java Problem
  The project cannot be built until build path errors are resolved    multitouch      Unknown Java Problem
  The project cannot be built until build path errors are resolved    native_globe        Unknown Java Problem
  The project cannot be built until build path errors are resolved    native_lorenz       Unknown Java Problem
  The project cannot be built until build path errors are resolved    surface_texture_java        Unknown Java Problem
  Cannot run program "gcc": Launching failed  libs-sdk9       [Discovery Options] page in project properties  C/C++ Problem
  Cannot run program "gcc": Launching failed  native_globe        [Discovery Options] page in project properties  C/C++ Problem
  Cannot run program "gcc": Launching failed  native_lorenz       [Discovery Options] page in project properties  C/C++ Problem
  Error launching external scanner info generator (gcc -E -P -v -dD C:/NVPACK/nvsample_workspace/.metadata/.plugins/org.eclipse.cdt.make.core/specs.cpp)  libs-sdk9       [Discovery Options] page in project properties  C/C++ Problem
  Error launching external scanner info generator (gcc -E -P -v -dD C:/NVPACK/nvsample_workspace/.metadata/.plugins/org.eclipse.cdt.make.core/specs.cpp)  native_globe        [Discovery Options] page in project properties  C/C++ Problem
  Error launching external scanner info generator (gcc -E -P -v -dD C:/NVPACK/nvsample_workspace/.metadata/.plugins/org.eclipse.cdt.make.core/specs.cpp)  native_lorenz       [Discovery Options] page in project properties  C/C++ Problem
  Program 'gcc' is not found in $PATH native_globe        [Discovery Options] page in project properties  C/C++ Problem
  Program 'gcc' is not found in $PATH native_lorenz       [Discovery Options] page in project properties  C/C++ Problem
  The import android.util.Log is never used   NvEventQueueActivity.java   /libs/src/com/nvidia/devtech    line 54 Java Problem
  The import android.util.Log is never used   NvGLESActivity.java /libs/src/com/nvidia/devtech    line 39 Java Problem
  </code></pre>