小编And*_*eek的帖子

Error:Execution failed for task ':App:mergeDebugResources'.
    > There were multiple failures while executing work items
       > A failure occurred while executing com.android.build.gradle.tasks.MergeResources$FileGenerationWorkAction
          > Error while processing /media/nikhilesh/App/src/main/res/drawable/ic_add_black_24dp.xml : Can't process attribute android:fillColor="@color/green": references to other resources are not supported by build-time PNG generation. See http://developer.android.com/tools/help/vector-asset-studio.html for details.

我们怎么解决这个问题？

当我编译一个Android应用程序时(我尝试使用sdk中的示例应用程序).我收到此错误:

>Error executing aapt: Cannot run program "/home/roel/projects/sdk/build-tools/18.0.1/aapt": >error=2, No such file or directory: error=2, No such file or directory    KeyChainDemo        >line 1 Android ADT Problem

但是aapt在那个地方？

>[roel@archUSB 18.0.1]$ ls /home/roel/projects/sdk/build-tools/18.0.1/

>NOTICE.txt  aidl     dx   libLLVM.so  libbcinfo.so  llvm-rs-cc    source.properties
>**aapt**        dexdump  lib  libbcc.so   libclang.so   renderscript

注意:我也得到错误"R无法解决",但我很确定当我解决问题1时,我也解决了这个问题

我想在移动时删除以前的折线，我正在使用 GoogleDirection 类来绘制折线。请参考下面的代码片段

   GoogleDirection.withServerKey(getResources().getString(R.string.google_maps_key))
                .from(origin)
                .to(destination)
                .transportMode(TransportMode.DRIVING)
                .alternativeRoute(true)
                .execute(this);

 @Override
public void onDirectionSuccess(Direction direction, String rawBody) {   
            mMap.clear();
            mMap.addMarker(new MarkerOptions().position(destination));
            ArrayList<LatLng> directionPositionList = direction.getRouteList().get(0).getLegList().get(0).getDirectionPoint();
            polyline = mMap.addPolyline(DirectionConverter.createPolyline(this, directionPositionList, 3, Color.BLACK));

}
  @Override
public void onDirectionFailure(Throwable t) {
    Log.e("Direction fail Sorry", " no route found for this location.");

}

请参考截图，需要根据当前位置更新折线。