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How to avoid isset() and empty()
...is undefined" and "undefined offset" messages when running on the E_NOTICE error level, because the existence of variables is not explicitly checked using isset() and consorts.
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Dynamically Changing log4j log level
...e>
</Appenders>
<Loggers>
<Root level="error">
<AppenderRef ref="MY_TRY_IT"/>
</Root>
</Loggers>
</Configuration>
There are extra steps to make this work if you are deploying to a tomcat instance, inside an IDE...
What is monkey patching?
...imulate a data retrieval call to an outside data source that results in an error, because we want to ensure correct behavior in such a case. We can monkey patch the data structure to ensure this behavior. (So using a similar method name as suggested by Daniel Roseman:)
import datasource
def get_d...
How can we make xkcd style graphs?
...library(xkcd) Loading required package: extrafont Registering fonts with R Error in loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]]) : there is no package called ‘acepack’ Error: package or namespace load failed for ‘xkcd’ and trying for acepack yields > ...
Ajax success event not working
...mat, so when jQuery tries to parse it as such, it fails. You can catch the error with error: callback function.
You don't seem to need JSON in that function anyways, so you can also take out the dataType: 'json' row.
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`Apache` `localhost/~username/` not working
...ut nothing seems to work. The main pages are OK, the user pages give a 404 error. Any ideas?
– Gik
Apr 28 '16 at 12:45
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Git/GitHub can't push to master
...otocol, which is indicated by your use of the URL beginning git://. As the error message says, if you want to push, you should use either the SSH URL git@github.com:my_user_name/my_repo.git or the "smart HTTP" protocol by using the https:// URL that GitHub shows you for your repository.
(Update: to...
Upload files with HTTPWebrequest (multipart/form-data)
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Took the code above and fixed because it throws Internal Server Error 500. There are some problems with \r\n badly positioned and spaces etc. Applied the refactoring with memory stream, writing directly to the request stream. Here is the result:
public static void HttpUploadFile(stri...
python numpy ValueError: operands could not be broadcast together with shapes
...nflicting numbers in the first dimension (97 and 2). That is what the ValueError above is complaining about. The second dimension would be ok, as number 1 does not conflict with anything.
For more information on broadcasting rules: http://docs.scipy.org/doc/numpy/user/basics.broadcasting.html
(Ple...
Recommended way to stop a Gradle build
...e has entered something invalid, or GradleScriptException for more general errors.
If you want to stop the current task or action, and move on to the next, you can also throw a StopActionException
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