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Android check internet connection [duplicate]
...!address.equals("");
} catch (UnknownHostException e) {
// Log error
}
return false;
}
Permission needed:
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
https://stackoverflow.com/a/17583324/950427
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An expression tree may not contain a call or invocation that uses optional arguments
...When I tried to MOQ out a call to the version with object, it gave me this error.
– vbullinger
Mar 21 '13 at 14:02
4
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Determine if code is running as part of a unit test
... test framework.
The reason I need this is because I show a MessageBox on errors. But my unit tests also test the error handling code, and I don't want a MessageBox to pop up when running unit tests.
/// <summary>
/// Detects if we are running inside a unit test.
/// </summary>
public ...
Count the number of occurrences of a character in a string in Javascript
...) returns null, meaning length() will return 0 instead of producing a type error.
– Nathan
Sep 20 '12 at 6:27
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MySQL: Invalid use of group function
...
First, the error you're getting is due to where you're using the COUNT function -- you can't use an aggregate (or group) function in the WHERE clause.
Second, instead of using a subquery, simply join the table to itself:
SELECT a.pid ...
Why do I get “Procedure expects parameter '@statement' of type 'ntext/nchar/nvarchar'.” when I try t
Why do I get this error
3 Answers
3
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You can't specify target table for update in FROM clause
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I think you have a capitalization error in your second solution. Shouldn't UPDATE Pers P read UPDATE pers P?
– ubiquibacon
Dec 19 '12 at 19:26
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How to stop /#/ in browser with react-router?
...on with exact version numbers for react and react-router, failing code and errors received.
– pxwise
Apr 6 '15 at 22:06
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python pip: force install ignoring dependencies
...I were trying install librosa package with pip (pip install librosa), this error were appeared:
ERROR: Cannot uninstall 'llvmlite'. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall.
I tried to remove ...
libpng warning: iCCP: known incorrect sRGB profile
...trying to load a PNG image using SDL but the program doesn't work and this error appears in the console
13 Answers
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