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Rails: how do I validate that something is a boolean?
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So, this gets the validation right, but the error message is not helpful for the end user: "myfield is not included in the list"
– Peter Sankauskas
Mar 28 '13 at 5:12
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JsonMappingException: out of START_ARRAY token
..., but it crazy since in jackson 2.6.3v there was a totally different crazy error, and with 2.9.8v everything worked. Damn it, so these serialization errors are so annoying.
– brebDev
Mar 13 '19 at 14:49
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Swift native base class or NSObject
...example, where we don't base on NSObject, the compiler correctly spots the error in testIncorrect_CompilerShouldSpot,
reporting "... 'MyClass' is not convertible to 'MirrorDisposition'"
class MyClass {
let mString = "Test"
func getAsString() -> String {
return mString
}
func testIn...
Git clone particular version of remote repository
...' -n1)"
# Failing control without feature.
cd ../local
# Does not give an error, but does not fetch either.
git fetch origin "$SHA3"
# Error.
git checkout "$SHA3"
# Enable the feature.
cd ../server
git config uploadpack.allowReachableSHA1InWant true
# Now it works.
cd ../local
git fetch origin "$...
how do I use UIScrollView in Interface Builder?
... Deployment Target is 5.1)
When I first did this I received the following error:
Illegal Configuration:
Size type user defined runtime attributes with Xcode versions prior to 4.3
MainStoryboard.storyboard
If you too get this error it is simple to fix: select the Story...
Android TextWatcher.afterTextChanged vs TextWatcher.onTextChanged
... at start are about to be replaced by new text with length after. It is an error to attempt to make changes to s from this callback.
public void onTextChanged(CharSequence s, int start, int before, int count)
This method is called to notify you that, within s, the count characters beginning at...
Why can I use auto on a private type?
...d f() {
A::BB x; // OK, typedef name A::BB is public
A::B y; // access error, A::B is private
}
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TypeError: method() takes 1 positional argument but 2 were given
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Something else to consider when this type of error is encountered:
I was running into this error message and found this post helpful. Turns out in my case I had overridden an __init__() where there was object inheritance.
The inherited example is rather long, so I'll ...
The 'packages' element is not declared
...ig stated, the schema is indeed not validated (VS will complain about such error in any XML file, not just only for nuget). But since the file is auto-generated is safe (and only used by nuget - which handles the XML just fine) it is perfectly fine to ignore the warnings.
– Joe...
Python debugging tips [closed]
...tparse
LOGGING_LEVELS = {'critical': logging.CRITICAL,
'error': logging.ERROR,
'warning': logging.WARNING,
'info': logging.INFO,
'debug': logging.DEBUG}
def main():
parser = optparse.OptionParser()
parser.add_option('-l', ...