Flutter setState() or markNeedsBuild() called when widget tree was locked

Question

I am having trouble finding the source to this exception, and the app is quite complex so it is hard to show any relevant part of the code. This is my repository at the poin

Answer 1

There are couple of options used setState inside build method and context on initState

Wrap your setState inside one of these

WidgetsBinding.instance.addPostFrameCallback or Future.microTask() or Timer.run or Future.delayed(Duration.zero,

Example:

  WidgetsBinding.instance
              .addPostFrameCallback((_) {
            //valueNotifier.value = _pcm; //provider
            //setState
          });