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Can I fix the “socket.gaierror: [errno -2] name or service not known” or not?
The cause: The problem socket.gaierror: [Errno -2] Name or service not known signifies that the domain's name resolution is failing (api.github.com). Name resolution can go wrong for a variety of reasons. Because you've turned off the internet, the reason is identity (Name or service not known). SolRead more
The cause:
The problem
socket.gaierror: [Errno -2] Name or service not known
signifies that the domain’s name resolution is failing (api.github.com).Name resolution can go wrong for a variety of reasons. Because you’ve turned off the internet, the reason is identity (Name or service not known).
Solution:
See lessGai
(GetAddressInfo) is a component ofglibc
that is used to do name resolves (and usingsocket
which can visualize). You can also change the settings in/etc/gai.conf
.How to fix “requires numeric/complex matrix/vector arguments in r”?
The cause: Because a large number of device learning libraries use matrix multiplication, you can see a similar error if one or more of your inputs are of the class character while the algorithm expects numeric. Another reason: If you try to pass a data frame where a matrix needs to be. Solution: YRead more
The cause: Because a large number of device learning libraries use matrix multiplication, you can see a similar error if one or more of your inputs are of the class character while the algorithm expects numeric.
Another reason: If you try to pass a data frame where a matrix needs to be.
Solution:
You must convert the
data.frame
to a matrix in order for the matrix multiplication to work:It produces a 7×7 matrix, which you can’t add to the 3×3 identity matrix you’re working with. The code shows something like:
The oserror: [errno 8] exec format error error: What should you do?
The cause: The error because at the top of the shell script has no shebang line. If you run the command in the shell, there is no error. By default, subprocess.check output() does not run the shell; no subprocess functions run the shell unless asked clearly. Solution: You should do the ways like thiRead more
The cause: The error because at the top of the shell script has no shebang line.
If you run the command in the shell, there is no error. By default,
subprocess.check output()
does not run the shell; no subprocess functions run the shell unless asked clearly.Solution: You should do the ways like this:
/bin/bash
at the start of the command or the faulty file#!/bin/sh
like in a first-lineFor instance:
Why do I get the trouble with “oserror: [errno 48] address already in use”?
The cause: A process is already linked to the default port (8000). If you've run the identical module before, the process is almost certainly still connected to the port. Solution: First, locate the other process: $ ps -fA | grep python 501 81651 12648 0 9:53PM ttys000 0:00.16 python -m SimpleHTTPSRead more
The cause: A process is already linked to the default port (8000). If you’ve run the identical module before, the process is almost certainly still connected to the port.
Solution:
First, locate the other process:
If there are multiple
Python
processes running, the command arguments are supplied to help you identify the one that is runningSimpleHTTPServer
. Check ifhttp://localhost:8000/
still displays a directory listing for local files.Send a signal to the server to prevent it:
In case the process is unresponsive, you may have to resort to other methods like sending a
See lessSIGKILL
(kill -s KILL <pid>
orkill -9 <pid>
) signal.Is there any solution for the no matching member function for call to ‘push_back’ error?
The cause: The reason for the error is the declaration: std::vector<ship*> ships; Solution: You should store const pointers in the vector in this way: std::vector<const ship*> ships; Another way: moves a non const pointer to push_back: fleet::add_ship(ship & s) { ships.push_back(Read more
The cause:
The reason for the error is the declaration:
Solution:
You should store const pointers in the vector in this way:
Another way: moves a non const pointer to push_back:
Simple solutions for the lvalue required as unary ‘&’ operand error
The cause: The address-operator & requires a variable from which to get the address. Your cast (long)u32 Time produces a temporary that does not necessarily reside in memory and so it has no address that can be accessed. Then it was an imprecise unusual extension if that code ever compiled somepRead more
The cause: The address-operator
&
requires a variable from which to get the address. Your cast(long)u32 Time
produces a temporary that does not necessarily reside in memory and so it has no address that can be accessed. Then it was an imprecise unusual extension if that code ever compiled someplace.The standard extension, §5.3.1,3 requests:
Solution:
Because
std::localtime
requires a pointer to astd::time_t
, you should give one. Casting a C-cast is not portable, and casting tolong
is much less portable.It may be sufficient to use
std::time_t
on your current platform if and only if thestd::time_t
on your current platform is also an unsigned 32 bit type with the same representation as youru32 Time
.Keeping the value in the correct data type first would be more usable:
How do I remove the shallow clone warning from homebrew?
The cause: Because Homebrew no longer makes shallow clones when installed, and from December 2020, upgrading existing shallow clones is not permitted. Perhaps the issue is related to changing the git remote address to the homebrew mirror location previously. Solution: In most situations, the warningRead more
The cause: Because Homebrew no longer makes shallow clones when installed, and from December 2020, upgrading existing shallow clones is not permitted.
Perhaps the issue is related to changing the git remote address to the homebrew mirror location previously.
Solution:
In most situations, the warning can be safely ignored because the formulae being sought are unlikely to exist.
However, if you’re seeking certain formulae that may have existed in the past, simply follow the instructions.
Run the following commands to acquire a complete history:
Simple solutions for the form submission canceled because the form is not connected error
The cause: Conforming to HTML (Hypertext Markup Language) standards. The form submission will be failed if it is not related to the browsing contexts or document. After submitting the form, state.submitting is set, and instead of the form, the "submitting..." message is rendered, resulting in this eRead more
The cause: Conforming to HTML (Hypertext Markup Language) standards. The form submission will be failed if it is not related to the browsing contexts or document.
After submitting the form,
state.submitting
is set, and instead of the form, the “submitting…” message is rendered, resulting in this error.Solution: You must make certain that the form is included in the document. The form can be appended to the body to avoid this problem.
The form tag should be moved outside of the conditional to guarantee that it was always available when needed
How can I handle – failed to set up listener: SocketException: address already in use?
The cause: The error Failed to set up listener: SocketException: Address already in use may be for the reasons: You have run mongodb You use default port 27017 Solution: It already has a process running on port 27017, which mongodb uses. So you'll have to either terminate the process in that port oRead more
The cause:
The error
Failed to set up listener: SocketException: Address already in use
may be for the reasons:27017
Solution:
It already has a process running on port 27017, which
mongodb
uses. So you’ll have to either terminate the process in that port or attempt another port number.Use
mongod —port 27018
to test it out.You have the option of changing the port number.
See lessError: assignment to expression with array type – how can i circumvent the error?
The cause: It shows the error "Not Assignable" because assigning a value to a string directly in C is not feasible. Solution: You should use strcpy() function to modify the value Do it in the following way: strcpy(s1.name , "Egzona"); printf( "Name : %s\n", s1.name);
The cause: It shows the error “Not Assignable” because assigning a value to a string directly in C is not feasible.
Solution:
You should use
strcpy()
function to modify the valueDo it in the following way: