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Question by dogukanerdem000 · Aug 10, 2020 at 07:05 AM · errorpackagescollections

collections package error

Hi there, hope you all having a good day,

My problem is; I've decided to install burst and collections packages in order to improve performance, because without these packages as you know 2d rig animations are causing problem, for example if I have 2 or 3 enemies in the scene the fps drops to 10-20 which is not cool.

So, I've installed burst and collections but there is a problem with the "collections" package, I am having this error;

Library\PackageCache\com.unity.2d.animation@4.2.2\Runtime\TransformAccessJob.cs(196,62): error CS1061: 'NativeHashMap' does not contain a definition for 'Length' and no accessible extension method 'Length' accepting a first argument of type 'NativeHashMap' could be found (are you missing a using directive or an assembly reference?)

I've searched for it and couldn't solve my problem, I really hope someone here can help me. I've been working on my 2d platformer game all alone myself for about 7-8 months and I got stucked because of this problem, for 2 days I've been trying to figure it out, thanks in advance for anyone who can help me!

My unity version: 2019.4.3f1

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Answer by dogukanerdem000 · Aug 10, 2020 at 08:13 AM

Okay I've solved the issue by installing "preview.3 - 0.7.1" version of the collections package,

If you're not using "Unity 2019.3.12f1+", you can use collections with the version I've mentioned above, because preview.6 - 0.9.0 only works with Unity 2019.3.12f1+.

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avatar image triangle4studios · Oct 04, 2020 at 11:32 PM 0
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Yeah they have a TON of bugs in the new package manager. They basically have ruined the entire system.

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