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Vivian Kemmer

Questions by Vivian Kemmer

How do you rename a Git tag??

Today I was looking through the logs for a project and realized that I fat fingered a tag name some time ago. Is the...

WebAPI No action was found on the controller?

I got an error - No action was found on the controller 'Action' that matches the request. The url is http://localho...

What is the difference between “rb+” and “ab” in fopen()??

I do not understand the difference between the "ab" and "rb+" modes when using fopen() in C. Why would I choose one...

Graphics.DrawImage unexpectedly resizing image?

I've got some code that takes a png that is a greyscale image with transparency and attempts to create a new image t...

What does the scanf function return??

I know that the signature of the scanf function is: int scanf(const char *format, ...) What is the int value retu...

Error: member function may not be declared outside of its class.?

I have my heap.h file that contains: bool insert(int key, double data); and in my heapCPP.cpp file I have: boo...

Bootstrap navbar-fixed-top class, not working?

Building out portfolio site using Bootstrap - I'm applying the 'navbar-fixed-top' class in order to get the navbar t...

Java and SSL - java.security.NoSuchAlgorithmException?

I've built a Java program as a front end for a database on a server, and I'm trying to use SSL to encrypt traffic be...

How to set a Python variable to 'undefined'??

In Python 3, I have a global variable which starts as "undefined". I then set it to something. Is there a way to...

Visual Studio: The Operation could not be completed. The parameter is incorrect?

I have been working on a new solution all evening. Building without an issue, however all of a sudden I have started...

IOError: [Errno 32] Broken pipe: Python?

I have a very simple Python 3 script: f1 = open('a.txt', 'r') print(f1.readlines()) f2 = open('b.txt', 'r') print(f...

LISP SICP Video Lecture 2a Average Damp Question?

In the following code, I am trying to understand how the variable whatami gets its value. In following the logic, I...

Call to non-static member function without an object argument?

Can anyone explain this error any why I am getting it? I believe I've got all of the arithmetic down in my separate ...

Signtool error: No certificates were found that met all given criteria with a Windows Store App??

I'm trying to sign a Windows 8 appx package with a pfx file I have. I'm using a command like so: signtool.exe sign ...