[LayaAirIDE 2.0]LayaAir IDE 2.2.0beta2版本2d粒子不能用了,LayaAir IDE 2.1.0版本正常

Uncaught TypeError: Failed to execute 'attachShader' on 'WebGL2RenderingContext': parameter 2 is not of type 'WebGLShader'.
    at ParticleShader._compile (libs/laya.core.js:2554)
    at ParticleShader.recreateResource (libs/laya.core.js:2529)
    at new Shader (libs/laya.core.js:2492)
    at new ParticleShader (libs/laya.particle.js:272)
    at new ParticleShaderValue (libs/laya.particle.js:283)
    at new ParticleTemplate2D (libs/laya.particle.js:301)
    at Particle2D.setParticleSetting (libs/laya.particle.js:535)
    at new Particle2D (libs/laya.particle.js:522)
    at Main.<anonymous> (js/bundle.js:52)
    at EventHandler.runWith (libs/laya.core.js:848)
 
aya.core.js中this._vshader与this._pshader参数为null