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Question by tomtomeow · Aug 03, 2017 at 09:18 AM · unity 5rigidbodyvector3error messagevelocity

Can't access the velocity of a rigidbody: 'Rigidbody' does not contain a definition for 'velocity'

From what I understand you can access the speed value of a rigidbody by typing: rigidbody.velocity for some reason it gives me the error: 'Rigidbody' does not contain a definition for 'velocity' (attached). What am I doing wrong? I also attached the entire script in case there could be a definition problem. alt text

error.png (15.2 kB)
errorscript.png (32.3 kB)
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avatar image UnityCoach · Aug 03, 2017 at 11:15 AM 1
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SpeedBoost is passed a Rigidbody, why do you assign it a value? You should get rid of line 29.

avatar image · Aug 03, 2017 at 12:47 PM 0
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First, why are you getting a Rigidbody component from a Rigidbody?

 m_Rigidbody = GetCompoent<Rigidbody>();
avatar image nt314p · Aug 03, 2017 at 02:26 PM 0
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Is this an answer, or criticism?

avatar image ShadyProductions nt314p · Aug 03, 2017 at 06:00 PM 0
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not criticism, it's improvement

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Answer by Bunny83 · Aug 03, 2017 at 05:27 PM

Given the error you most likely named one of your own classes "Rigidbody". That class hides Unity's "UnityEngine.Rigidbody" class. You should generally avoid using any names of built-in classes for your own.

So the best solution is to rename your Rigidbody class into something else. If you want to keep that name you have to use the "fully qualified type name" UnityEngine.Rigidbody every time you want to refer to Unity's Rigidbody class.

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