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E11000 duplicate key error index in mongodb mongoose
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The error message is saying that there's already a record with null as the email. In other words, you already have a user without an email address.
The relevant documentation for this:
If a document does not have a value for the...
How to get JSON from URL in JavaScript?
...ng Node.js? Then take a look over here. But next time try googling for the error first, the link I posted is the first result that comes up when I type the error into Google.
– Robin Hartmann
Jun 11 '18 at 12:41
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Undefined symbols for architecture i386: _OBJC_CLASS_$_SKPSMTPMessage", referenced from: error
...background i.e. SKPSMTPMessage Framework. Can somebody suggest why below error is shown
35 Answers
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HTML: Include, or exclude, optional closing tags?
...spec clearly specifies when it's valid to omit tags, so it's not always an error.
For example you never need </body></html>. Nobody ever remembers to put <tbody> explicitly (to the point that XHTML made exceptions for it).
You don't need </head><body> unless you have ...
Haskell error parse error on input `='
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Starting in GHC 8.0.1 this would no longer generate an error.
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How to print an exception in Python?
How can I print the error/exception in my except: block?
8 Answers
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configure: error: C compiler cannot create executables
...PXS spits it out, but it has the wrong path so that's why you keep getting errors.
– Adrian Rodriguez
Nov 28 '12 at 0:10
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What is Python buffer type for?
...t; t[0] # which is now also the first element in t!
'\x05'
This can be very helpful if you want to have more than one view on the data and don't want to (or can't) hold multiple copies in memory.
Note that buffer has been replaced by the better named memoryview in Python 3, th...
Opening project in Visual Studio fails due to nuget.targets not found error
... Thanks for this, would be nice if they gave a more helpful error message in VS for that.
– rossisdead
Oct 14 '14 at 17:37
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What is the purpose of Rank2Types?
... typecheck (although some functions that go into infinite loops or produce errors and therefore never return will do so).
The above is contrived, of course, but a variation on this technique is key to making the ST monad safe.
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