Android shader issue on Nexus 7

[burf2000]

Hi there, great work dude.

On Android, I get

07-25 21:34:01.958 21001-21020/org.jrenner.fps.android E/AndroidRuntime﹕ FATAL EXCEPTION: GLThread 877
Process: org.jrenner.fps.android, PID: 21001
com.badlogic.gdx.utils.GdxRuntimeException:
L0007: Cannot find vertex shader varying for declared fragment shader varyingv_rotation
at com.badlogic.gdx.graphics.g3d.shaders.BaseShader.init(BaseShader.java:172)
at com.badlogic.gdx.graphics.g3d.particles.ParticleShader.init(ParticleShader.java:205)
at com.badlogic.gdx.graphics.g3d.particles.batches.PointSpriteParticleBatch.(PointSpriteParticleBatch.java:70)
at com.badlogic.gdx.graphics.g3d.particles.batches.PointSpriteParticleBatch.(PointSpriteParticleBatch.java:58)
at org.jrenner.fps.particles.Particles.(Particles.java:20)
at org.jrenner.fps.Main.create(Main.java:57)
at com.badlogic.gdx.backends.android.AndroidGraphics.onSurfaceChanged(AndroidGraphics.java:237)
at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1511)
at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1239)