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Sequence contains more than one element
...
FYI you can also get this error if EF Migrations tries to run with no Db configured, for example in a Test Project.
Chased this for hours before I figured out that it was erroring on a query, but, not because of the query but because it was when Migr...
What does 'useLegacyV2RuntimeActivationPolicy' do in the .NET 4 config?
...DX, and therefore has unmanaged code, to .NET 4.0 I ran into the following error:
2 Answers
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Why does Python use 'magic methods'?
...ck (most recent call last):
File "python", line 1, in <module>
TypeError: unsupported operand type(s) for +: 'dict' and 'dict'
This gives an error, because the dictionary type doesn't support addition. Now, let's extend dictionary class and add "__add__" magic method:
class AddableDict(di...
Is delete this allowed?
...ject remains valid until after the throw takes place.
void myclass::throw_error()
{
std::unique_ptr<myclass> bye_bye(this);
throw std::runtime_exception(this->error_msg);
}
Note: if you're using a compiler older than C++11 you can use std::auto_ptr instead of std::unique_ptr, it ...
“new” keyword in Scala
...d class Foo
scala> new Foo("baz")
res0: Foo = Foo@2ad6a0
// will be a error
scala> Foo("baz")
<console>:8: error: not found: value Foo
Foo("baz")
Bonus, there is a anonymous classes in scala, which can be constructed like this:
scala> new { val bar = "baz" }
res2: java.l...
Will ConfigurationManager.AppSettings[“blah”] throw an exception if “blah” doesn't exist?
...n you will not get an exception. It really wouldn't make sense to throw an error just because a value doesn't exist in a dictionary. But if the dictionary didn't exist then that would be a reason to throw an error. (The term dictionary was just used to refer to an arbitrary collection.)
...
Browse orphaned commits in Git
...orrupted so this didn't help; git fsck can help you find and sometimes fix errors in the repository itself.
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Git rebase merge conflict cannot continue
...commit after a git add. So, the following sequence will produce the rebase error you mention:
git add <file with conflict>
git commit -m "<some message>"
git rebase --continue
While, the sequence below runs without any errors, and continues the rebase:
git add <file with conflict&g...
Concept of void pointer in C programming
...rintf("print float f = %f \n",f);
return 0;
}
But I was getting error, so I came to know my understanding with void pointer is not correct :(. So now I will move towards to collect points why is that so.
The things that i need to understand more on void pointers is that.
We need to type...
For loop example in MySQL
...clare str VARCHAR(255) default ''; in the MySQL (5.6) console gives me the error message Error 1064 (42000): ... for the right syntax to use near '' at line 3, which is as clear as mud (although I assume it doesn't like the DEFAULT clause).
– Agi Hammerthief
Ma...