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The import android.support cannot be resolved
... JARs Button on the Right pane.
Select the android-support-v4.jar file, usually the path for the Jar file is :
YOUR_DRIVE\android-sdks\extras\android\support\v4\android-support-v4.jar
After adding android-support-v4.jar Library, navigate to the Order and Export tab and put check mark on the android...
When to use std::forward to forward arguments?
...;, so you always end up with the correct type inside the function body. Finally, you need forward to turn the lvalue-turned x (because it has a name now!) back into an rvalue reference if it was one initially.
You should not forward something more than once however, because that usually does not ma...
How can I run a function from a script in command line?
...ontext of the current shell using the source or . command and then simply call the function. See help source for more information.
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Why are Objective-C delegates usually given the property assign instead of retain?
...wner
If B had retained A, A wouldn't be released, as B owns A, thus A's dealloc would never get called, causing both A and B to leak.
You shouldn't worry about A going away because it owns B and thus gets rid of it in dealloc.
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What exceptions should be thrown for invalid or unexpected parameters in .NET?
...o, that do not focus so much on the argument itself, but rather judge the call as a whole:
InvalidOperationException – The argument might be OK, but not in the current state of the object. Credit goes to STW (previously Yoooder). Vote his answer up as well.
NotSupportedException – The argument...
How to get Last record from Sqlite?
... This is very bad request for that purpose because sqlite should sort all records by their id (slow) before returning the result, Stephen Nguyen gave optimal request with DESC and LIMIT 1
– Artem Zinnatullin
Nov 15 '13 at 8:13
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How to debug Apache mod_rewrite
...ng off. If you forget you'll fill your hard disk up fairly promptly, especially on a production server.
– John Hunt
May 21 '15 at 15:18
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What's the difference between git reset --mixed, --soft, and --hard?
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When you modify a file in your repository, the change is initially unstaged. In order to commit it, you must stage it—that is, add it to the index—using git add. When you make a commit, the changes that are committed are those that have been added to the index.
git reset changes, a...
Python Anaconda - How to Safely Uninstall
I installed Python Anaconda on Mac (OS Mavericks). I wanted to revert to the default version of Python on my Mac. What's the best way to do this? Should I delete the ~/anaconda directory? Any other changes required?
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Validation failed for one or more entities. See 'EntityValidationErrors' property for more details [
... shows me that it's an array with 8 objects, so 8 validation errors.
Actually you should see the errors if you drill into that array in Visual studio during debug. But you can also catch the exception and then write out the errors to some logging store or the console:
try
{
// Your code...
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