# Crash. Assertion failed: (Capacity() - Size() \> 0) (DEF-3605) (SOLVED)

**URL:** <https://forum.defold.com/t/crash-assertion-failed-capacity-size-0-def-3605-solved/34094>\
**Category:** Bugs\
**Created:** [November 7, 2018, 1:54pm UTC](https://forum.defold.com/t/crash-assertion-failed-capacity-size-0-def-3605-solved/34094 "2018-11-07T13:54:30Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![AGulev](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/agulev/32/4541_2.png) [@AGulev](https://forum.defold.com/u/AGulev)\
**Post date:** [November 7, 2018, 1:54pm UTC](https://forum.defold.com/t/crash-assertion-failed-capacity-size-0-def-3605-solved/34094/1 "2018-11-07T13:54:30Z")

</div>

```
Assertion failed: (Capacity() - Size() > 0), function Push, file /Users/builder/ci/builds/engine-darwin-64-beta/build/tmp/dynamo_home/sdk/include/dmsdk/dlib/array.h, line 464.

```

We caught a crash on all platforms (ios, android, macos).  
I am not sure how to reproduce this crash, but maybe Crashdump will help.

```lua
0 dmengine 0x000000010682e8da _ZN7dmCrash7OnCrashEi + 74
1 libsystem_platform.dylib 0x00007fffc6268b3a _sigtramp + 26
2 ??? 0x5800327800000002 0x0 + 6341123766315122690
3 libsystem_c.dylib 0x00007fffc60ed420 abort + 129
4 libsystem_c.dylib 0x00007fffc60b4893 basename_r + 0
5 dmengine 0x0000000106632190 _ZN12dmGameSystemL28CompModelSetConstantCallbackEPvyPjRKN12dmGameObject11PropertyVarE + 592
6 dmengine 0x000000010662185c _ZN12dmGameSystem19SetMaterialConstantEPN8dmRender8MaterialEyRKN12dmGameObject11PropertyVarEPFvPvyPjS6_ES7_ + 140
7 dmengine 0x0000000106631d9a _ZN12dmGameSystem18CompModelOnMessageERKN12dmGameObject24ComponentOnMessageParamsE + 442
8 dmengine 0x0000000106602216 _ZN12dmGameObject24DispatchMessagesFunctionEPN9dmMessage7MessageEPv + 2150
9 dmengine 0x00000001067b0134 _ZN9dmMessage16InternalDispatchEyPFvPNS_7MessageEPvES2_b + 452
10 dmengine 0x0000000106607f81 _ZN12dmGameObjectL16DispatchMessagesEPNS_10CollectionEPyj + 257
11 dmengine 0x0000000106604abf _ZN12dmGameObject6UpdateEPNS_16CollectionHandleEPKNS_13UpdateContextE + 895
12 dmengine 0x0000000106623db5 _ZN12dmGameSystem25CompCollectionProxyUpdateERKN12dmGameObject22ComponentsUpdateParamsERNS0_22ComponentsUpdateResultE + 453
13 dmengine 0x0000000106604a4e _ZN12dmGameObject6UpdateEPNS_16CollectionHandleEPKNS_13UpdateContextE + 782
14 dmengine 0x00000001065e1c3a _ZN8dmEngine4StepEPNS_6EngineE + 1258
15 dmengine 0x00000001066500d6 _ZN10dmGraphics18RunApplicationLoopEPvPFvS0_EPFiS0_E + 38
16 dmengine 0x00000001065e29f3 _ZN8dmEngineL7InitRunEPN15dmEngineService13EngineServiceEiPPcPFvPNS_6EngineEPvES9_S7_ + 179
17 dmengine 0x00000001065e287f _ZN8dmEngine6LaunchEiPPcPFvPNS_6EngineEPvES6_S4_ + 111
18 dmengine 0x00000001065e2ae6 _Z11engine_mainiPPc + 118
19 dmengine 0x000000010640b034 start + 52

```

[\_crash.zip](https://defold-forum-bucket.nbg1.your-objectstorage.com/original/2X/7/738c1befb9d91987da854a6e744ec16009fb0252.zip) (2.7 KB)

---

<div class="post-metadata">

**Author:** ![Mathias\_Westerdahl](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/mathias_westerdahl/32/228_2.png) [@Mathias\_Westerdahl](https://forum.defold.com/u/Mathias_Westerdahl)\
**Post date:** [November 7, 2018, 2:08pm UTC](https://forum.defold.com/t/crash-assertion-failed-capacity-size-0-def-3605-solved/34094/2 "2018-11-07T14:08:07Z")

</div>

Q: Are you using [model.reset\_constant()](https://www.defold.com/ref/model/#model.reset_constant:url-constant) ?

---

<div class="post-metadata">

**Author:** ![AGulev](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/agulev/32/4541_2.png) [@AGulev](https://forum.defold.com/u/AGulev)\
**Post date:** [November 7, 2018, 2:09pm UTC](https://forum.defold.com/t/crash-assertion-failed-capacity-size-0-def-3605-solved/34094/3 "2018-11-07T14:09:11Z")

</div>

> [@Mathias\_Westerdahl](#):
>
> [model.reset\_constant()](https://www.defold.com/ref/model/#model.reset_constant:url-constant)

yes.

---

<div class="post-metadata">

**Author:** ![Mathias\_Westerdahl](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/mathias_westerdahl/32/228_2.png) [@Mathias\_Westerdahl](https://forum.defold.com/u/Mathias_Westerdahl)\
**Post date:** [November 7, 2018, 2:09pm UTC](https://forum.defold.com/t/crash-assertion-failed-capacity-size-0-def-3605-solved/34094/4 "2018-11-07T14:09:55Z")

</div>

Ok, then we’ve found the issue, and it will be fixed in 1.2.142

---

<div class="post-metadata">

**Author:** ![britzl](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/britzl/32/23_2.png) [@britzl](https://forum.defold.com/u/britzl)\
**Post date:** [November 19, 2018, 2:07pm UTC](https://forum.defold.com/t/crash-assertion-failed-capacity-size-0-def-3605-solved/34094/5 "2018-11-19T14:07:48Z")

</div>

Fixed in 1.2.142