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i am getting this error how to resolve
This page has an error. You might just need to refresh it. Action failed: c$TestComp$controller$showMsg [Cannot read property 'getELement' of undefined] Failing descriptor: {c$TestComp$controller$showMsg}
Such error comes from the javascript files of lighting bundle when you tries to call the property(getElement) of a variable And at some point of an instance,the value of the variable is undefined.
So for the detail explanation kindly share your code.