So when I tried to open a file input dialog, I got this error Error: [$rootScope:inprog]. This happens because there can be only one $digest or $apply operation in progress.

To avoid this problem, you can do two things:

1) The Angular JS way by adding a timeout. Make sure to include $timeout and inject it in your controller.

Sample code:

2) The old fashion way by adding onclick=”document.getElementById(‘id’).click()” to the input file element.

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