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HC3 QuickApp LUA error: attempt to index a nil value (local 'child')


Gabor Varga

Question

Hi,

 

I am creating a custom QuickApp for Gree Air Conditioners on HC3, and I have the following issue when I would like to create the child device under my QuickApp:

./quickApp.lua:156: attempt to index a nil value (local 'child')

 

Did anyone faced such issue? quickApp.lua is internal file within the HC3, so I cannot touch it, also I cannot check what is inside this file.

Here is my code for child device creation:

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I also tried using api.post command for calling the api:

image.png.a34b26255145de82df6da92a39259ae1.png

 

In this case I have the following return:

{"reason":"","message":"","type":"ERROR"}

 

Luckily, it is not giving any better information what is the problem, what is missing etc.

 

Any idea, how can I check the details?

 

Thanks!

G

Edited by Gabor Varga
Added some more information
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Hi @Gabor Varga,

 

did you have a look at the child device manual from Fibaro?

 

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Summarised: In the QuickApp you need to define a new class. After defining all classes, you can create child devices. When the QuickApp starts it needs to initialise its child devices. 

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  • 28 minutes ago, SmartHomeEddy said:

    Hi @Gabor Varga,

     

    did you have a look at the child device manual from Fibaro?

     

    Please login or register to see this link.

     

    Summarised: In the QuickApp you need to define a new class. After defining all classes, you can create child devices. When the QuickApp starts it needs to initialise its child devices. 

    Hi,

     

    Yes. I tried creating my solution based on this article, but I have the error message mentioned in my original post. However, it is not describing many options. E.g.: how 'uid' is generated for storing/restoring create child devices.

    It would be nice to see a complete example from begin to end how this looks like.

     

    Thanks!

    G

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