Looking at your code, you probably haven't indented below line properly:
System.TypeInitializationException occurred
You need to indent your code by four spaces, or select it all and press the {}
button. Also make sure there is one blank line between your last line of text and your first line of code. This will cause your code to be rendered in <pre><code>
blocks and all of its HTML/Markdown entities will be escape/ignored respectively.
Properly indented code renders like this:
#include <iostrea>
int main() {
vector<int> items;
}
Unindented code renders like this:
#include
include
int main() { vector items; }
You can see why we stress proper indenting of code.