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Checking Bash exit status of several commands efficiently
...
"$@"
local status=$?
if (( status != 0 )); then
echo "error with $1" >&2
fi
return $status
}
mytest "$command1"
mytest "$command2"
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How to create local notifications?
...de works fine for iOS 7.x and below but for iOS 8 it will prompt following error on console:
Attempting to schedule a local notification with an alert but haven't received permission from the user to display alerts
This means you need register for local notification. This can be achieved usin...
How to “set a breakpoint in malloc_error_break to debug”
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Set a breakpoint on malloc_error_break() by opening the Breakpoint Navigator (View->Navigators->Show Breakpoint Navigator or ⌘8), clicking the plus button in the lower left corner, and selecting "Add Symbolic Breakpoint". In the popup that come...
Fatal error: unexpectedly found nil while unwrapping an Optional values [duplicate]
...d it, and the runtime returns a nil that should never happen. It's a fatal error, the app crashes, and the Console output gives:
fatal error: unexpectedly found nil while unwrapping an Optional value
Bottom line: check your cell reuse identifier specified in the .storyboard, Xib, or in code, and ...
“did you run git update-server-info” error on a Github repository
...b Gui from their website to manage my repos, and I'm getting the following error:
20 Answers
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Xcode - How to fix 'NSUnknownKeyException', reason: … this class is not key value coding-compliant f
...er may have the wrong class in your xib.
I downloaded your project.
The error you are getting is
'NSUnknownKeyException', reason: '[<UIViewController 0x3927310> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key string.'
It is caused by the Second vi...
The forked VM terminated without saying properly goodbye. VM crash or System.exit called
Please help me to solve this issue. I do not exactly understand what the error in the log means.
48 Answers
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JavaScript isset() equivalent
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the problem with this is that you get an error when you try to check deeper properties, for example: obj.thisdoesntexist.foo !== undefined. In PHP you can use isset or empty and safely at any deep.
– Enrique
Aug 21 '11 at 16:35...
Using HTML5/Canvas/JavaScript to take in-browser screenshots
... the getUserMedia with chromeMediaSource only for Electron.js
FIX 2: Throw error instead return null object
FIX 3: Fix demo to prevent the error: getDisplayMedia must be called from a user gesture handler
// docs: https://developer.mozilla.org/en-US/docs/Web/API/MediaDevices/getDisplayMedia
// see: ...
How to print an exception in Python?
How can I print the error/exception in my except: block?
8 Answers
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