Questions tagged [appliance]

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14
votes
6answers
5k views

Missing network adapter

I'm using Cs50 appliance 2014. I get missing network adapter message in bottom right side. "ifconfig" gives the following output. "sudo service network restart" gives the following output ) I have ...
9
votes
6answers
46k views

“Error while powering on: Internal error.” when starting the appliance in VMware Player

I've formatted my laptop, but when I open the appliance it says internal error:
9
votes
4answers
317 views

Running “update50” cause “Settings Manager” to dissappear from CS50 2014 Appliance's menu

I've just installed the new 2014 CS50 Appliance (v.2014-24) inside VMware Workstation 11 according to the instructions. And its working fine, with the following exception: If I run in terminal ...
8
votes
1answer
2k views

Gedit bottom panel terminal plugin missing

I have researched for 3 days and can't find an answer. My Gedit is not showing the bottom panel terminal, and the bottom panel option in "view" is grayed out. I went to Edit > Preferences >Plugins, ...
8
votes
12answers
94k views

Why can't I import the Appliance OVA into Virtualbox?

I can't import the Appliance OVA file, appliance50-2014-vbox.ova, into VirtualBox. I keep getting the error message: Result Code: VBOX_E_FILE_ERROR (0x80BB0004) How do I fix this without switching ...
6
votes
6answers
8k views

How to Install the Tools for the Course on Ubuntu

As per the question I have had nothing but trouble trying to use the virtual versions of the cs50 software, namely the virtual machine crashes runs slowly or just generally feels like my fingernails ...
6
votes
1answer
8k views

Stopping an infinite loop while running

While running drafts of mario.c in pset 1 I will at times run a program that has an unintended infinite loop. Is there keystroke combination that I can use to stop the loop and return to the blinking ...
6
votes
6answers
935 views

No IP address in CS50 appliance

I literally have no IP address in my CS50 Appliance. I can still access the internet perfectly fine though. Take a look:
5
votes
3answers
192 views

Can I use the old appliance for the new course?

I almost completed CS50 last year, and I was just wondering if I could finish up the coursework with the old appliance, or do I need to install the new one? Thank you!
4
votes
2answers
1k views

Why does check50 fail with status code 400?

For the last month, I've been trying to use check50 to see if I wrote the right code for the problem sets, but no matter which problem, it always fails with status code 400. Any idea what I should ...
3
votes
3answers
773 views

CS50 Appliance in VirtualBox Resolution

I have the appliance running with virtual box since VM is having problems. my resolution is 1440X900 VB only allows me to go to 1024X786 does anyone know how to make the appliance go to 1440 X 900 in ...
3
votes
2answers
2k 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 ...
3
votes
1answer
859 views

Error: Gedit not opening on VirtualBox Ubuntu 14.04

I recently downloaded VirtualBox and imported the CS50x Appliance. I am unable to open gedit and receive the below error message, included as a screen shot. If someone can assist me on what I should ...
3
votes
2answers
580 views

Where are cs50.c / cs50.h?

I've seen in week 5, David opened up the cs50.c and cs50.h files. I'd want to further look into that myself but can't found it anywhere in my appliance. Where are cs50.c and cs50.h?
3
votes
2answers
1k views

How to make my makefile match the Appliance

I was trying to do a lot of the work on my pc instead of the appliance and I would really like to use the make functionality. Currently when I run make it doesn't have the correct flags and I was ...
3
votes
1answer
3k views

Should I use CS50 IDE or CS50 Appliance as an edX student?

I understood that Harvard students are using CS50 IDE instead of CS50 Appliance this year. It is not clear to me what I can/should use as an edX student. So I would like to ask, what shall I use?
3
votes
2answers
793 views

Unknown error while importing cs50 appliance on windows 7

I am not able to import the cs50 appliance on my Windows 7 64 bit PC using VMware Player. When importing cs50 appliance 19, The error message is: Failed to open virtual machine: Unknown error, ...
3
votes
3answers
79 views

How can I reach out to someone who could help me via TeamViewer?

I've been having some trouble with the appliance lately – it won't connect to the Internet. In fact, it even says there is no IP address. I have deleted it and installed it a couple times but nothing ...
2
votes
5answers
12k views

How can I fix “Error while powering on: Internal error” when starting the CS50 Appliance in VMware Player?

I'm having a problem with VMware and the CS50 appliance. I don't have anything fancy, like Fusion - just VMware Player 6.0.1 build-1379776. My computer runs Windows 7 Home Premium. The player itself ...
2
votes
2answers
898 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 ...
2
votes
2answers
1k 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 ...
2
votes
2answers
6k views

Where do i download cs50 appliance version 2014

In the cs50 manual i could only find the vmware workstation 11 link . Could you please tell me where i can find the appliance version 2014
2
votes
3answers
74 views

Stretching appliance in full window

Currently my cs50 appliance window is in centre of vmware workstation. How can I stretch cs50 appliance in full window in vmware for proper viewing ?
2
votes
1answer
442 views

Gedit is not working on CS50 Appliance

I've installed the CS50 Appliance, but when I click the gedit button nothing happens. I tried to update the package, but when I enter to Browse Network in the File Manager, I have this error : Failed ...
2
votes
1answer
230 views

How to change time and date in CS50 appliance?

The CS50 Appliance 19 Manual says: How to Change Time Zone If you don’t live in Cambridge, Massachusetts, USA, you may want to change the appliance’s timezone. Select Menu > Administration > ...
2
votes
2answers
729 views

Appliance install on Linux - No go with VMware or VirtualBox on Linux Mint, Ubuntu

Do any of my fellow students have the appliance up and running on a Linux box? If you do please let me know what Linux distribution you are running, which installation instructions you followed that ...
2
votes
1answer
98 views

Gtk-warning when editing hosts file [duplicate]

So I get the Gtk-warning when I execute: sudo gedit etc/hosts I have tried restarting the appliance and it still does not work. Are there other ways to fix the bug or access the hosts file?
2
votes
1answer
218 views

OSX Yosemite Beta does not support VMware Fusion

I have a Macbook Pro running OSX Yosemite Beta. I tried running my previously working version of VMware Fusion on this but it says the current operating system does not support VMware Fusion! Can ...
1
vote
3answers
1k views

Pset8 Mashup Map Not loading

Hey guys hoping to get some help with a tricky issue here. Do to certain circumstances I had to take a break from cs50 in the middle of pset8. It’s been about 3 weeks now and I’m just getting back to ...
1
vote
2answers
136 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. ...
1
vote
2answers
1k views

Problems running update50

So... fresh instance of the cs50 2014 appliance (i.e. Ubuntu 14.04 LTS guest VM), running on Ubuntu 14.04 host OS, using VirtualBox. I've ran plenty of VMs on this machine before, so I'm pretty sure ...
1
vote
1answer
89 views

Is it possible to resubmit psets from 2014 still using the Fedora appliance?

Happy New Year, everyone! I started CS50 3-4 months ago but I wasn't able to finish all the psets on time before the end of 2014. Now I will start again with the new CS50. I know there is a ...
1
vote
2answers
3k views

What does -std=c99 command do?

When I run make, I see a lots of clang commands. I know the meaning of all of them except -std=c99. So, what does this command do?
1
vote
2answers
254 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 ...
1
vote
2answers
556 views

CS50 Appliance not working on windows 10 on latest version of virtualbox

I was using CS50 Appliance normally on Windows 8 but once I updated my Windows to Windows 10, a problem arose. So I guess it is a compatibility problem of the virtualbox and went to its website to ...
1
vote
2answers
83 views

I can't view dictionaries with gedit

I cannot find the dictionaries for pset5. When I type in: "cd ~cs50/pset5/dictionaries" (as suggested in a question from May 5, 2015) I get the following error: "bash: cd: /home/cs50/pset5/...
1
vote
3answers
1k views

cs50 2014 appliance - missing network adaptor

I have already set the network's adopter to NAT. But still cannot connect to the internet. However, I can update the appliance using update50. Would you advise? Thanks!
1
vote
2answers
5k views

What does this VirtualBox/Appliance-19 Error Message mean?

I've installed VirtualBox on a 32-bit Windows 8.1 running on an old HP computer. After VirtualBox finds the appliance and loads it, I get the following error message when I click start: Error ...
1
vote
1answer
3k views

How to Download and Run the CS50 Appliance?

Where do I download appliance, and how do I set it up on VMware Player? I'm using Windows.
1
vote
1answer
1k views

Running python scripts in the cs50 appliance

I am a python developer and I am taking the course to brush up on my C language skills. During the week 2 lecture (continued), David shows how a loop iteration can be used to access indices in a ...
1
vote
2answers
180 views

Link for the new Ubuntu appliance

Can someone please share the link for the new Ubuntu-based appliance? I've been searching everywhere...
1
vote
1answer
485 views

Segmentation Fault in pset6 (speller)

When running a finished speller, I receive an unhelpful segmentation fault. jharvard@appliance (~/Desktop/pset6): ./speller ~cs50/pset6/texts/austinpowers.txt Segmentation fault (core dumped) ...
1
vote
1answer
48 views

switch between cs50 appliance and window

Inside Windows, I can use alt+tab to switch between different programs. So what's the shortcut key to switch between the cs50 virtual machine and windows?
1
vote
1answer
173 views

The CS50 Appliance download link is giving an Access Denied error

I have been trying to download the CS50 application, but this link (and also the torrent version) both return an error. Saving the link just gives a server error message in the download box. Slicking ...
1
vote
1answer
1k views

What is the password to gain root in cs50 appliance?

I want to install VLC player on my appliance so that I can watch downloaded course videos and need to access su to do it. I entered crimson as the password and it didn't work. Anybody know what it is?
1
vote
1answer
577 views

How to Fix “server responded with status code 400” Error?

Compressing hello.c... Compressed. Uploading...... Uploaded. Checking... server responded with status code 400. Try again later! Why is the server not working when its checking mario?
1
vote
1answer
178 views

Downloading VMware on Mac, not according to instructions!

I'm new on this, and TOTALLY new to the world of programming I'm trying to download VMware Fusion and I'm using a Macbook Pro. I'm taking this course online through edX. I've emailed the centre and ...
1
vote
2answers
674 views

Can't run Breakout outside of appliance

I have just finished implementing Breakout, and tried running it outside of the appliance in my Debian machine, but i get the following error, even though it's the same directory that's shared between ...
1
vote
1answer
144 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,-...
1
vote
1answer
418 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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