Cannot read property 'render' of undefined

[thomas-jeepe]

So I was switching my project to typescript and in this process I got Cannot read property 'render' of undefined.

After following the stack trace, I ended up in this line.

Debugging showed that componentClass.prototype was undefined, causing it to throw on trying to get a property on undefined. Changing the line to the below fixed everything and all components worked.

if (typeof componentClass === "function" && !componentClass.prototype && !componentClass.isReactClass && !React.Component.isPrototypeOf(componentClass)) {

This is the stack trace, tsconfig, and relevant files

Im not sure if this is a bug on my end or on mobx-react. Right now the "fix" I am using is replacing the line of code, but that isn't very maintainable.

[mweststrate]

I just released mobx-react@3.3.1, could you verify whether this solves the issue? Spotted a potential error in the check indeed.

[thomas-jeepe]

Just upgraded to 3.3.1 and it fixed it thanks a ton!