NullReference when declaring Int32 [duplicate]

First off: As Int32 is a Struct, it can not possible be ‘null’! I know this! I’m getting a nullreference on the following line (Code taken from simple Console application): Int32 lookbackDays = 1; <— On this line //Int32 lookbackDays = 1; Int32.TryParse(ConfigurationManager.AppSettings[“LookbackDays”], out lookbackDays); if (lookbackDays < 1) { lookbackDays = 1; } Stracktrace:…

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Why can I update a file owned by root using sudo vi, but not append a line to it with sudo echo “Thing” >> file?

I would like to have script that is doing automated migrations of websites from another be able to append Includes to the /etc/httpd/conf.d/vhosts.conf file. However, when I try to use echo to put append a string to the end of the file I get this: $ sudo echo “Include thing” >> /etc/httpd/conf.d/vhosts.conf -bash: /etc/httpd/conf.d/vhosts.conf: Permission…

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Removing subinterfaces from interfaces file brings them back upon reboot

I am not very experienced with ubuntu and trying to remove some subinterfaces within ubuntu. However, every time I remove the subinterfaces by running “sudo nano /etc/network/interfaces” command, these interfaces come right back. Ubuntu version: 12.04.5 LTS Then, I found this command “IP link show” which showed that these interfaces are in UP state. So,…

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Bug: Scheduling While Atomic: [snapd|cupsd|mount|systemd-udevd|NetworkManager|dhclient|whoopsie|…]

This is similar to issues reported recently and 6 years ago. However, there are differences. I’m running Kubuntu 19.04, kernel 5.0.0-38{generic|low-latency}. The generic kernel has no issues, but the low-latency kernel throws up all over. By this I mean I get the basic error “Bug: Scheduling While Atomic:” hundreds of times, but with multiple different…

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