Questions tagged [appliance]

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Right between sold and application.py I am getting odd file names. Can someone explain what is the origin of these files?

Right between sold and application.py I am getting odd file names. Can someone explain what is the origin of these files? As far I know I did not create them.
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1answer
566 views

Can I use the cs50 appliance for the course in 2017?

I've tried everything else to get cs50 ide offline, like docker, but nothing seems to be working. if I download the cs50 appliance from last year shoul I have any problems?
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27 views

I have 2 questions. 1 - offline programming 2 - getting user input

One: I have very poor internet connection and I want to know if there's a way to use cs50 IDE offline. Two: I fooled around some with the get_(user input) functions and found that you can do this ...
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1answer
18 views

Editing two similar strings

It appears that if you define one string and store the value of the string in another string and you try to change one of the strings, you'll end up changing both of them(as in the image). My question ...
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2answers
601 views

(CS50 mario.less)Please point out the mistake in my code.(pset 1)

I need your assistance with my code foe CS50 problem set 1, the mario(less comfortable). I seem to have a few problems with the logic inside my code. Would you mind pointing out the mistakes? I would ...
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128 views

Crack: Segfault on CS50 appliance/ IDE/ CS50.io but fine on my computer

I'm trying to make PSET2 crack, however in online IDE I got segmentation fault. I tried same thing on my local computer and it works fine. What's wrong? Pls ignore the fact that code is ugly etc. ...
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1answer
112 views

How can I update the version of php on my cs50 appliance?

I have version 17-12 of cs50 appliance. It has the version 5.4.7 of php . I want to update the version of php to 7. How can I do this?
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1answer
118 views

Serial Key for VM12 Not Given

i have completed my cs50 course but now wanted to get my hands wet in SDL, so for that in the seminars it was said to download cs50 appliance and to do that one would have to download VM worstation, I ...
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1answer
124 views

Declaration Shadow for 'i', but i don't understand why! Feelin' pretty dumb

Slice of code: #include <cs50.h> void sort(int values[], int n) { for (int i = 0, i < n, i++) Error: bubble.c:6:21: error: declaration shadows a local variable [-Werror,-...
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1answer
52 views

Setting up clang on ubuntu pc

I am using CS50 appliance to do psets but since I have a laptop with ubuntu on it, I would like to set up a similar environment to the cs50 in my laptop, starting with clang, and the C libraries that ...
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1answer
313 views

Best non-cloud9 IDE?

For those of you who have finished the course - do you continue to use the CS50 IDE? I would like to find an IDE that doesn't depend on the CS50 libraries and packages etc. and would like to find ...
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1answer
50 views

problems with initials.c using strgcmp()

I want this code to skip through a name like " bob dylan", ignore the spaces before "bob" and print "B". It is not printing anything for some reason. #include <stdio.h> #include <cs50.h&...
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1answer
56 views

problems with clickiing in cs50 ide

I went to cs50 ide to work on some code today and when I opened cs50 ide, my whole code was highlighted and it was unresponsive when I clicked on it. I figured out that I am only able to click on the ...
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1answer
96 views

Problem with IDE cloud9

I updated IDE and start working on problem set 8, but the application appears to be blocking me from entering the application i am working on and in the sql database. Particularly, in the instructions ...
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2answers
1k views

Issues with the CS50 IDE

My CS50IDE workspace was fine this morning, but it is not having issues. In my upper right nav I am now missing the link to my localhost (i.e. https://ide50-myusername.cs50.io), as well as the info ...
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1k views

Handles lack of argv[1]

Okay this is driving me nuts.. i have looked at a bunch of these questions which are the exact same.... but none of the answers help.... Basically in my code this is how it goes: ` if(argc != 2 || k ...
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1answer
139 views

what is wrong with scanf in the program written bellow, Why it is not asking for value when input is not an integer?

#include<stdio.h> #include<stdlib.h> //#include<cs50.h> int main(void){ int minutes; printf("minutes:"); int c=scanf("%d",&minutes);//if input here is character then second ...
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1answer
370 views

pset5 all words misspelled

I tried so many times and fixed somehow based on reply. This is a little embarrassing but I still cannot figure it out. There must be some problems in load and check. #include "dictionary.h" ...
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2answers
342 views

Too much misspelled in pset5 dictionary

Through my code, I got 19190 misspelled. It seems I have a problem in check though. Anyone who can find any problem here?? dictionary.h /** * dictionary.h * * Computer Science 50 * Problem Set ...
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253 views

Mess of Error Messages From Clang

I just started pset3 and when I try to compile my helpers function I get this crazy mess of error messages from clang. This is my code /** * helpers.c * * Computer ...
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1answer
338 views

I can't access cs50.io after I log in with my Edx account

Since yesterday, I'm trying to log in into https://cs50.io but, once I connect my edu account, I get this page: I tried clicking on the links up there but it got me nowhere. Also, the phrase on the ...
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1answer
74 views

Can I recover my old pset code from cs50 Appliance using cs50 IDE?

How can I do this now that my VM Ware trial period has expired?
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1answer
343 views

“Error: control may reach end of non-void function”. What causes this error? [duplicate]

I'm working with code (that I am not the primary author of) and trying to get it to run. It tests to see if a number is prime or not. It gives me the error error: "control may reach end of non-void ...
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2answers
85 views

I want to unload cs50 appliance from my machine

Now I'm done with CS50, I'd like to unload the Appliance, but have no idea how to. I can clear the VM easily enough, but suspect that may leave Gb of appliance clutter on my disc. Oddly, even Google ...
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1answer
19 views

CS50 Appliance Boots directly into Terminal

The cs50 appliance lagged so much that I wasn't able to do anything. I then force shut it down and when I restarted the appliance it just now boots directly into the terminal. How do I get the GUI ...
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1answer
47 views

PSET7 Terminal issue

I've finished pset7, however when I try to dump in the sql file I'm not able to type the password when prompted in the terminal, as in I can't type anything at all.
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2answers
29 views

signing in with google plus

I signed up in EDX with my google plus account but when I want to download Cs50 appliance it wants my email and password even though I'm already signed in. It also doesn't accept my google login. what ...
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1answer
29 views

DropBox Lost Files

I need to find my files because everything in my dropbox was gone. I don't know how to fix it or get them back. I looked to see if some of them are graded but they are not. I don't know how it ...
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1answer
160 views

pset 2, vigenere, created cipher function, but had to subtract 19?

I have been banging my head as to why when I run vigenere with bacon argument, Meet me at the.....etc, never turns out the same as on the CS50 page, but always the same encryption values on my side. ...
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2answers
947 views

how to close port 8080?

~cs50/pset6/server public and ./server public in my own directory worked fine for a long time but now when I try to run it I get the message "Port 8080 already in use, stopping server." How can I ...
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292 views

telnet error (was working fine) now unable to resolve name/service not known

I had been happily testing my server.c code using telnet, resolved several issues and was tackling the last error when telnet stopped working. I entered the same command as I had done 50 times before, ...
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2answers
73 views

cs50 appliance won't compile

The CS50 appliance has been working fine, but it seems all of a sudden whenever I try compiling a program I get this error: bashL ./: Is a directory I can't understand why this is not working anymore!...
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1answer
23 views

changes to code in appliance not being applied

I am working on pset5 dictionary.c, I had it working and now it is not. I have been tinkering with the code but every time I save dictionary.c and then execute make dictionary.c, the response is "...
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2answers
84 views

Upgraded VMWare workstation to latest version, broke cut and paste, screen resizing

VMware popped up with an upgrade screen to the latest ver.11 version for workstation. Foolishly, I upgraded, after which I was no longer able to cut and paste from Windows 7. It also disrupted the vm ...
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1answer
224 views

Want to know how to write C outside the appliance

For experimental reasons I want to use the editor Atom to write C. To do this I need the libraries and a compiler. Could someone walk me through how to do this? I checked the appliance guide to try ...
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1answer
26 views

I'm running linux and not using the appliance. Is there anywhere I can download the cs50 directory with the staff implementations?

Is the directory uploaded somewhere online? I'm running Linux Mint so I'm not using the appliance.
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1answer
49 views

Appliance running out of memory

Appliance have ran out of memory and cannot turn on. So when I can turn on my appliance only a black screen appears. I've only allocated 16GB for the appliance and I think this is occurring because I'...
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1answer
117 views

Appliance crash

My appliance seems to crash (screen goes black and prompts password for login) whenever I run breakout from pset3. I have no problem compiling and running the program but after a few seconds the ...
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2answers
847 views

Attempting to access https://CS50.io IDE

I tried accessing the site - https://cs50.io Upon entering my edX credentials I'm able to see the IDE, but receive the error - Failed to write to 'project.settings'. Access denied acccessing this ...
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1answer
44 views

Can't find staff implementation

When I try to run the staff implementation it says no such file exists. I have re-run the update50 several times. I am now on version 2014-29 (lower right corner of screen). When I am at jharvard@...
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1answer
51 views

virtual machine doesn't power on

i just installed cs50 appliance but when i tried to power on the virtual machine this message appeared anyone can help me please?
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1answer
108 views

How do I enlarge my appliance?

When I make the appliance window full screen or make it bigger, it ether shrinks the window back, or has a black "buffer" area around the appliance. I am using Windows 7. I am using the 2014 ...
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1answer
49 views

CS50 appliance : issues with keyboard

When I'm on CS50 appliance, my azerty keyboard suddenly switches to querty keyboard. So when I presse a (for ex.) it prints q... and so on ! I don't know why, and don't know how to fix it. I tried ...
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1answer
22 views

Where to get the latest appliance?

I've got a appliance, downloading from the current edX course website link... but, after pset3 i did realized that this appliance isn't the latest. I even made an update, but doesn't get update how we ...
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1answer
167 views

hello.html ERR_ADDRESS_UNREACHABLE

I'm not able to reach the hosted html files outside of the appliance. Within the appliance everything works great. However, as soon as I try from chrome in windows I immediately get an ...
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3answers
93 views

Could anyone help me in fixing this error! please

Could not start the machine CS50 Appliance 2014_1 because the following physical network interfaces were not found: VirtualBox Host-Only Ethernet Adapter (adapter 2) You can either change the ...
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2answers
169 views

How do I copy and paste to and from the appliance?

How do I copy and paste to and from the appliance ie: from my computer(host) to the appliance(guest) and visa versa? I looked at Appliance - Host Copy and paste problems, but I could not find "Shared ...
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1answer
35 views

Mouse Problems within the appliance

The mouse has been difficult within the cs50 Appliance. Often, the mouse will not really click on something and move to a different location on the screen. How am I able to "re-set" this and be able ...
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1answer
65 views

can't access pset7 outside appliance: undefined index: HTTP_HOST

I'm having trouble accessing my pset7 website outside of the appliance. I completed pset6 and can access content from it just fine. I'm using windows 7 and have vmware2014. Here is the error I keep ...
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0answers
27 views

gedit doesn't have command line panel

I turned on the CS50 Appliance only to find the side panel doesn't open by default and, more importantly, the command line panel cannot be opened (the option on the "View" menu is greyed out). ...

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