When you go to the product details in magento 2 you get an unexpected error (e.g. 500). To find out, one needs to enable error reporting on magento's bootstrap.
In the file, you will find: app/bootstrap.php
Add the following line:
ini_set('display_errors', -1) // Should enable error reporting with -1 value.
An http error 500 (Internal server error) can be caused by the following, among other things. After you enable error reporting, you get the following problem
Error : The configuration parameter "componentType" is a required for "advanced_pricing_button" component.
Possible solution :
Had the same issue when migrating from Magento 2.0.7 to 2.1.0, the following described on https://github.com/magento/magento2/issues/5236 fixed the problem for me:
In vendor/magento/module-configurable-product/Ui/DataProvider/Product/Form/Modifier/ConfigurablePrice.php look for the following code:
$meta[$groupCode]['children'][self::CODE_GROUP_PRICE] = array_replace_recursive(
$meta[$groupCode]['children'][self::CODE_GROUP_PRICE],
[
'children' => [
self::$advancedPricingButton => [
'arguments' => [
'data' => [
'config' => $visibilityConfig,
],
],
],
],
]
);
And replace the following line:
'config' => $visibilityConfig,
With:
'config' => ['componentType'=>'container',$visibilityConfig],

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