Deque iterator not dereferencable

Cocos Creator
1

I want make progressbar from label.
so I using rendertexture, and it’s work in browser.

but in simulator and android, make error like this
image

    var renderTexture = cc.RenderTexture.create(DlgLabel.width,DlgLabel.height)
    renderTexture.beginWithClear(0, 0, 0, 255*0.9);
    DlgLabel._sgNode.visit();
    renderTexture.end();       <--in here, error make.

if i remove renderTexture.end(), not error, but texture is empty.
how to fix this problem?
my creator is 1.9.0