void setup() 

{

  size(200, 200);

  background(0);

  smooth();

} 

void draw() 

{

 

}

• error message:

BUILD FAILED

C:\Program Files\Android\android_sdk\tools\ant\build.xml:818: The following error occurred while executing this line:

C:\Program Files\Android\android_sdk\tools\ant\build.xml:820: The following error occurred while executing this line:

C:\Program Files\Android\android_sdk\tools\ant\build.xml:832: The following error occurred while executing this line:

C:\Program Files\Android\android_sdk\tools\ant\build.xml:278: null returned: -1

Total time: 3 seconds

Buildfile: C:\DOCUME~1\018\LOCALS~1\Temp\android1500463186595359619sketch\build.xml

-set-mode-check:

-set-debug-files:

-set-debug-mode:

-debug-obfuscation-check:

-setup:

     [echo] Creating output directories if needed...

    [mkdir] Created dir: C:\DOCUME~1\018\LOCALS~1\Temp\android1500463186595359619sketch\bin

    [mkdir] Created dir: C:\DOCUME~1\018\LOCALS~1\Temp\android1500463186595359619sketch\bin\res

     [echo] Gathering info for EmbeddedLinks...

    [setup] Android SDK Tools Revision 19

    [setup] Project Target: Android 2.3.3

    [setup] API level: 10

    [setup] 

    [setup] ------------------

    [setup] Resolving library dependencies:

    [setup] No library dependencies.

    [setup] 

    [setup] ------------------

    [setup] API<=15: Adding annotations.jar to the classpath.

    [setup] 

    [setup] ------------------

-build-setup:

    [mkdir] Created dir: C:\DOCUME~1\018\LOCALS~1\Temp\android1500463186595359619sketch\gen

    [mkdir] Created dir: C:\DOCUME~1\018\LOCALS~1\Temp\android1500463186595359619sketch\bin\classes

-pre-build:

-code-gen:

     [echo] ----------

     [echo] Handling aidl files...

     [aidl] No AIDL files to compile.

     [echo] ----------

     [echo] Handling RenderScript files...

[renderscript] No RenderScript files to compile.

     [echo] ----------

     [echo] Handling Resources...

     [aapt] Generating resource IDs...

     [echo] ----------

     [echo] Handling BuildConfig class...

[buildconfig] Generating BuildConfig class.

-pre-compile:

-compile:

    [javac] Compiling 3 source files to C:\DOCUME~1\018\LOCALS~1\Temp\android1500463186595359619sketch\bin\classes

-post-compile:

-obfuscate:

-dex:

      [dex] Converting compiled files and external libraries into C:\DOCUME~1\018\LOCALS~1\Temp\android1500463186595359619sketch\bin\classes.dex...

In my opinion, it is problem related about setting.