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SLF4J: Class path contains multiple SLF4J bindings
I'm getting the following error. It seems there are multiple logging frameworks bound to slf4j. Not sure how to resolve this. Any help is greatly appreciated.
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Downloading a picture via urllib and python
...00001.jpg').content)
f.close()
Though it should check for requests.get() error.
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Site does not exist error for a2ensite
...nf extension to site configuration files.
Apache a2ensite results in:
Error! Site Does Not Exist
Problem; If you found the error while trying to enable a site using:
sudo a2ensite example.com
but it returns:
Error: example.com does not exist
a2ensite is simply a Perl script that only...
How does one generate a random number in Apple's Swift language?
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I got compiler error message: random is unavailable in Swift: Use arc4random instead.
– Mike Keskinov
Aug 15 '17 at 15:39
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Xcode warning: “Multiple build commands for output file”
I am getting an error like this:
23 Answers
23
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Checking from shell script if a directory contains files
...xCraft's article posted in 2007. Add 2>/dev/null to suppress the output error "No such file or directory".
See also Andrew Taylor's answer (2008) and gr8can8dian's answer (2011).
if [ -n "$(ls -A your/dir 2>/dev/null)" ]
then
echo "contains files (or is a file)"
else
echo "empty (or does ...
What is the difference between 'E', 'T', and '?' for Java generics?
...s a List of any type
never
public <?> ? bar(? someType) {...} // error. Must use type params here
or
public class MyGeneric ? { // error
public ? getFoo() { ... } // error
...
}
It gets more confusing where they overlap. For example:
List<T> fooList; // A list ...
Why hasn't functional programming taken over yet?
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Because all those advantages are also disadvantages.
Stateless programs; No side effects
Real-world programs are all about side effects and mutation. When the user presses a button it's because they want something to happen. Wh...
How can I import Swift code to Objective-C?
...that if you try to use the Swift filename in your import, you will get the error "Expected ';' after top level declarator". in your Swift file after "import Foundation".
– louielouie
Jun 9 '14 at 22:10
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Is it possible to get the iOS 5.1 SDK for Xcode 4.2 on Snow Leopard?
...the simulator but broke every build to every device with a SIGABRT or link error.
I'm off to the Apple store to have them restore my device. If I get any more information, I'll let you all know. This has been a VERY EXPENSIVE and VERY UNPLEASANT surprise.
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