我有一个SKEffectNode，它包含一个节点，可以动态地改变它的子节点（删除子节点并经常动态添加子节点）。而且我一直在Fabric上获得此崩溃日志（仅在iOS10上发生）但是我无法在自己的设备上重现它。日志似乎喜欢它试图计算这个节点的边界并得到一些错误。 有没有人有相同的情况？请给我合理的建议和意见。谢谢！
0 SpriteKit 0x190fc2810 SKCNode::walkChildren(void (SKCNode*, bool*) block_pointer, bool, bool) + 100
1 SpriteKit 0x190fc2b50 SKCNode::getAccumulatedBoundingBox() + 176
2 SpriteKit 0x190fc3114 ___ZN7SKCNode25getAccumulatedBoundingBoxEv_block_invoke + 36
3 SpriteKit 0x190fc2858 SKCNode::walkChildren(void (SKCNode*, bool*) block_pointer, bool, bool) + 172
4 SpriteKit 0x190fc2b50 SKCNode::getAccumulatedBoundingBox() + 176
5 SpriteKit 0x190fc3114 ___ZN7SKCNode25getAccumulatedBoundingBoxEv_block_invoke + 36
6 SpriteKit 0x190fc2858 SKCNode::walkChildren(void (SKCNode*, bool*) block_pointer, bool, bool) + 172
7 SpriteKit 0x190fc2b50 SKCNode::getAccumulatedBoundingBox() + 176
8 SpriteKit 0x190fc3114 ___ZN7SKCNode25getAccumulatedBoundingBoxEv_block_invoke + 36
9 SpriteKit 0x190fc2858 SKCNode::walkChildren(void (SKCNode*, bool*) block_pointer, bool, bool) + 172
10 SpriteKit 0x190fc2b50 SKCNode::getAccumulatedBoundingBox() + 176
11 SpriteKit 0x19102a090 ___ZN13SKCEffectNode19ensure_framebuffersEP13SKCRenderInfoDv4_j_block_invoke + 36
12 SpriteKit 0x190fc2858 SKCNode::walkChildren(void (SKCNode*, bool*) block_pointer, bool, bool) + 172
13 SpriteKit 0x191029ca0 SKCEffectNode::ensure_framebuffers(SKCRenderInfo*, unsigned int vector[4]) + 268
14 SpriteKit 0x19102a1d0 SKCEffectNode::addRequistePasses(SKCRenderInfo*, std::__1::list<std::__1::shared_ptr<SKCRenderPass>, std::__1::allocator<std::__1::shared_ptr<SKCRenderPass> > >*) + 248
15 SpriteKit 0x19106485c SKCRenderer::doBuildRenderGroup(SKCNode*, SKCRenderState, matrix_float4x4) + 376
16 SpriteKit 0x191064a4c SKCRenderer::doBuildRenderGroup(SKCNode*, SKCRenderState, matrix_float4x4) + 872
17 SpriteKit 0x191064a4c SKCRenderer::doBuildRenderGroup(SKCNode*, SKCRenderState, matrix_float4x4) + 872
18 SpriteKit 0x191064a4c SKCRenderer::doBuildRenderGroup(SKCNode*, SKCRenderState, matrix_float4x4) + 872
19 SpriteKit 0x191064a4c SKCRenderer::doBuildRenderGroup(SKCNode*, SKCRenderState, matrix_float4x4) + 872
20 SpriteKit 0x191064a4c SKCRenderer::doBuildRenderGroup(SKCNode*, SKCRenderState, matrix_float4x4) + 872
21 SpriteKit 0x191063e30 SKCRenderer::buildRenderGroup(std::__1::shared_ptr<SKCRenderSortGroup> const&) + 792
22 SpriteKit 0x191061228 SKCRenderer::buildRenderPass(std::__1::shared_ptr<SKCRenderPass> const&) + 92
23 SpriteKit 0x191060c94 SKCRenderer::render(SKCNode*, float vector[4], std::__1::shared_ptr<jet_framebuffer> const&, unsigned int vector[4], matrix_float4x4, bool, NSDictionary*, SKCStats*, SKCStats*, double) + 1600
24 SpriteKit 0x190ff000c __51-[SKView _vsyncRenderForTime:preRender:postRender:]_block_invoke + 1564
25 SpriteKit 0x190ff04a0 __51-[SKView _vsyncRenderForTime:preRender:postRender:]_block_invoke.336 + 408
26 SpriteKit 0x190fef924 -[SKView _vsyncRenderForTime:preRender:postRender:] + 572
27 SpriteKit 0x190ff154c __29-[SKView setUpRenderCallback]_block_invoke + 208
28 SpriteKit 0x191027144 -[SKDisplayLink _callbackForNextFrame:] + 168
29 QuartzCore 0x184fe6f24 CA::Display::DisplayLinkItem::dispatch(unsigned long long) + 44
30 QuartzCore 0x184fe6dd0 CA::Display::DisplayLink::dispatch_items(unsigned long long, unsigned long long, unsigned long long) + 444
31 IOKit 0x181ffe094 IODispatchCalloutFromCFMessage + 372
32 CoreFoundation 0x181d26e50 __CFMachPortPerform + 180
33 CoreFoundation 0x181d3f218 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 56
34 CoreFoundation 0x181d3e9cc __CFRunLoopDoSource1 + 436
35 CoreFoundation 0x181d3c4b0 __CFRunLoopRun + 1840
36 CoreFoundation 0x181c6a2b8 CFRunLoopRunSpecific + 444
37 GraphicsServices 0x18371e198 GSEventRunModal + 180
38 UIKit 0x187cb17fc -[UIApplication _run] + 684
39 UIKit 0x187cac534 UIApplicationMain + 208
40 Space Walk 0x10023fb50 main (main.m:16)
41 libdispatch.dylib 0x180c4d5b8 (Missing)
答案 0 :(得分：1)
我终于弄清楚发生了什么。根据Apple的文档，我们只能在主线程中添加和删除节点。