software errors / problem solutions - Page 9

How to fix ERR_NETWORK_CHANGED error (SOLVED)

Posted by Alex On April 20, 2021

What is the error ERR_NETWORK_CHANGED The ERR_NETWORK_CHANGED error shows the Google Chrome web browser when it was unable to load the site page due to the change in network parameters. More specifically, the web browser initiated the connection and the remote host responded, but before the page was loaded, something changed on the network. Your connection was interrupted A network...

How to clear DNS and other caches in Google Chrome

Posted by Alex On April 19, 2021

Caching is an excellent technology, the essence of which is that once received files (images, scripts, HTML code) or data (DNS answers), can be reused (the user opens the same page, or the entire site uses the same JavaScript library) and no need to request or query and wait for data from the server again. Instead, a local (cached) copy...

Permanent message “Briefly unavailable for scheduled maintenance. Check back in a minute.” (SOLVED)

Posted by Alex On April 18, 2021

When updating plugins, themes or WordPress engine, the site is automatically closed for users and instead they see the message “Briefly unavailable for scheduled maintenance. Check back in a minute”. This is normal and the site reopens immediately after the update is complete. But if the updates were interrupted, for example, due to your unstable Internet connection, then the website...

How to fix “Configuration File (php.ini) Path” no value (SOLVED)

Posted by Alex On April 17, 2021

The phpinfo function shows complete information about the PHP environment, including which modules are enabled, where the configuration files are located, with which options the PHP binaries were compiled, and much more. To use this function in the web server folder create a file and copy to it: <?php phpinfo (); Save the file and open it in a web...

Error “ruby-bundler: /usr/share/man/man5/gemfile.5.gz exists in filesystem (owned by ruby)” (SOLVED)

Posted by Alex On April 12, 2021

Whenever operating system packages are updated (as well as when new packages are installed), in addition to checking dependencies, package managers also check that there is no file conflict. That is, a package containing files that are already on disk and do not belong to this package will not be updated or installed. During a regular system update (Arch Linux,...

Connection type “Bridged Adapter” stopped working on VirtualBox guest machine (SOLVED)

Posted by Alex On April 7, 2021

In the settings of the virtual machine on the “Network” tab, you can select the type of network connection. The most common types are NAT and Bridged Adapter. NAT: for a virtual computer, its own local network is created, which has an Internet connection. This computer is not accessible from the local network of the main machine Bridged Adapter: the...

Search engine ad: why nothing was found and why it doesn’t show ads

Posted by Alex On April 1, 2021

The ability to set up custom Google searches on your site has been available for at least a decade. Including displaying ads. But now there is a special block in AdSense called “Search engine”. What is the profitability of search pages Approximately 1 person out of 100 visitors to the site will search for something on it. About 1 out...

Ubuntu in VirtualBox does not stretch to full screen although Guest Additions are installed (SOLVED)

Posted by Alex On March 27, 2021

1. Are the Guest Additions actually installed? First, make sure you actually have Guest Additions installed. It is recommended to update the guest OS to the latest package versions: sudo apt update sudo apt full-upgrade After the update is complete, restart your computer: reboot There is a guest additions package in the standard repositories. It can be installed as follows:...

Error “Failed to talk to init daemon” (SOLVED)

Posted by Alex On March 27, 2021

You can use command line to shutdown Linux computer, following command will shutdown computer: shutdown -h now systemctl halt To reboot, you can use the following command: systemctl restart They usually work fine, but on some distributions they require elevated privileges, which means they need to be run with sudo. But in single user mode, these commands result in the...

How to find and remove non-UTF-8 characters from a text file

Posted by Alex On March 14, 2021

Filtering invalid UTF-8 characters Files that, in addition to ordinary characters, contain characters that are invalid from the UTF-8 point of view, cause a problem both when they are processed by utilities and when opened in text editors. An example of an error in Python 3 when trying to process a file with non-UTF-8 characters: [-] Exception as following: Traceback...