Uncaught TypeError: Super expression must either be null or a function, not undefined about react-preload HOT 6 CLOSED

Hey-

What version of react are you using? Also- if you remove the Preload component from your component class, does the issue disappear?

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Hey Sam

Good point, I updated React to 0.14.0 and fixed some dependencies and don't have any exceptions now. Is this the version of React you recommend?

thanks

Will

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UPDATE :

In your example did you just drop a react component in here?

 {/* content to be rendered once loading is complete*/}

My render function looks like the below and I get this exception now Warning: React.createElement: type should not be null, undefined, boolean, or number. It should be a string (for DOM elements) or a ReactClass (for composite components).

render: function() {

          var loadingIndicator = (<div>Loading...</div>)
          var images = ["images/brazil1.jpg","images/brazil2.jpg"];

          return (
            <Preload
              loadingIndicator={loadingIndicator}
              images={images}
              autoResolveDelay={3000}
              onError={this._handleImageLoadError}
              onSuccess={this._handleImageLoadSuccess}
              resolveOnError={true}
              mountChildren={true}
              >
                {
                  /* content to be rendered once loading is complete*/ 
                  <Container />
                }
            </Preload>
            )
        }

Thanks for all the help

Will

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Will-

React 0.13 or up is definitely recommended.

The content can be any valid react Component. The error you are getting is because you have it wrapped in the {} braces and left the comment in - leave just your container and you should be good.

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Hey Sam

Sorry to bug you on the wk, but just trying to debug how you got this setup. Here is a screen shot from dev tools showing the var Preload being returned as undefined

and I get the same error message as below, it seems Preload is not being recognized as a React Class. Is this possibly because I am not using ES6 rather just doing it with jsx?

Thanks

Will

Warning: React.createElement: type should not be null, undefined, boolean, or number. It should be a string (for DOM elements) or a ReactClass (for composite components).

from react-preload.

Hey Sam

Sorry to bother you again but last try with the module here.

I tried with a blank repo with just react and a very simple test class with nothing complicated about it so I could see what is going on and still I get the same error as above, I put it in the below repo. Is there anything else I am missing because it seems like there is a big step that I am completely missing out on as right now it isn't getting any where at all.

https://github.com/vancouverwill/preloadReactTest0.13.0

for what it's worth I did try with 0.14 but no luck there either

https://github.com/vancouverwill/preloadReactTest0.14.0

thanks

Will

from react-preload.