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Getting this 100% reproducible crash on both devices and simulator.
Thread finished: #16
2016-10-07 15:52:39.979 iCropTrakApp[62974:3108193] error: * Assertion: should not be reached at /Users/builder/data/lanes/3818/ad1cd42d/source/xamarin-macios/external/mono/mono/sgen/sgen-scan-object.h:90
ERROR /BuildRoot/Library/Caches/com.apple.xbs/Sources/VectorKit_Sim/VectorKit-1188.8.131.52.9/GeoGL/GeoGL/GLCoreContext.cpp 1763: InfoLog SolidRibbonShader:
ERROR /BuildRoot/Library/Caches/com.apple.xbs/Sources/VectorKit_Sim/VectorKit-1184.108.40.206.9/GeoGL/GeoGL/GLCoreContext.cpp 1764: WARNING: Output of vertex shader 'v_gradient' not read by fragment shader
ERROR /BuildRoot/Library/Caches/com.apple.xbs/Sources/VectorKit_Sim/VectorKit-1220.127.116.11.9/GeoGL/GeoGL/GLCoreContext.cpp 1763: InfoLog TrafficCasingShader:
ERROR /BuildRoot/Library/Caches/com.apple.xbs/Sources/VectorKit_Sim/VectorKit-118.104.22.168.9/GeoGL/GeoGL/GLCoreContext.cpp 1764: WARNING: 0:27: Overflow in implicit constant conversion, minimum range for lowp float is (-2,2)
Believe this is relatively new - as customer has not not changed - but on switch to version of Xamarin/Mono/IOS as below this happens everytime.
=== Xamarin Studio Business ===
Version 6.1.1 (build 15)
Installation UUID: 06e8ed9b-6208-476a-a22a-ebeb3b94553b
Mono 4.6.1 (mono-4.6.0-branch-c8sr0/ef43c15) (64-bit)
GTK+ 2.24.23 (Raleigh theme)
Package version: 406010005
=== NuGet ===
=== Xamarin.Profiler ===
=== Apple Developer Tools ===
Xcode 8.0 (11246)
=== Xamarin.Android ===
Version: 22.214.171.124 (Xamarin Business)
Android SDK: Not found
=== Xamarin Android Player ===
=== Xamarin.iOS ===
Version: 10.0.1.10 (Xamarin Business)
Build date: 2016-10-03 15:18:44-0400
=== Xamarin.Mac ===
=== Build Information ===
Release ID: 601010015
Git revision: fa52f02641726146e2589ed86ec4097fbe101888
Build date: 2016-09-22 08:03:02-04
Xamarin addins: 75d65712af93d54dc39ae4c42b21dfa574859fd6
Build lane: monodevelop-lion-cycle8-sr0
=== Operating System ===
Mac OS X 10.11.6
Darwin Laures-MBP.lan 15.6.0 Darwin Kernel Version 15.6.0
Mon Aug 29 20:21:34 PDT 2016
Can you provide a test case that would enable us to reproduce your problem?
In terms of a code fragment - probably no. I could probably do a couple of things though:
1. I can get you configured with our Store Application to run on a device. If you simply login - you will crash the app with the right client customer DB loaded.
2. I believe I could also send you a copy of our App in the Simulator - same procedure - you open app - you will crash.
Not sure what would be easiest/possible. If there are other options - happy to do whatever to get this sorted out.
These type of bugs are pretty hard to debug and they normally require both having a debugger and recompilation of the runtime, which can be done pretty straightforward if we have the source code and we're compiling the app.
@zoltan Do you think we can work around this, to be able to debug, at least with the simulator ?
We can get you a source code tree you can build. If you want to contact me on my email we can sort out the logistics of this.
fixed in https://github.com/mono/mono/pull/3833