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ALTER DATABASE failed because a lock could not be placed on database
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After you get the error, run
EXEC sp_who2
Look for the database in the list. It's possible that a connection was not terminated. If you find any connections to the database, run
KILL <SPID>
where <SPID> is the SPID for the s...
Introducing FOREIGN KEY constraint may cause cycles or multiple cascade paths - why?
...I'm using EF Codefirst migrations and the migrations are failing with this error:
16 Answers
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Git's famous “ERROR: Permission to .git denied to user”
I have tried googling and read through https://help.github.com/en/articles/connecting-to-github-with-ssh and various, various guides. I am unable to git push -u origin master or git push origin master ( the same command ).
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List vs List
...myMap;
withWilds( myMap ); // Works
noWilds( myMap ); // Compiler error
}
You would think a List of HashMaps should be a List of Maps, but there's a good reason why it isn't:
Suppose you could do:
List<HashMap<String,String>> hashMaps = new ArrayList<HashMap<String,Str...
Render HTML to PDF in Django site
...ue(), content_type='application/pdf')
return HttpResponse('We had some errors<pre>%s</pre>' % escape(html))
Then you can use it like this:
def myview(request):
#Retrieve data or whatever you need
return render_to_pdf(
'mytemplate.html',
{
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ExecJS::RuntimeError on Windows trying to follow rubytutorial
...ttempting a Rails tutorial on Win 8 RTM a few months ago and ran into this error. Not sure if this issue exists in Windows 7 as well, but this may help.
Options:
1) Removing //= require_tree . / Ignoring the issue - As ColinR stated above, this line should not be causing an issue in the first plac...
Jenkins Host key verification failed
I have a problem with jenkins , setting "git", shows the following error:
13 Answers
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Assign a variable inside a Block to a variable outside a Block
I'm getting an error
8 Answers
8
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Access string.xml Resource File from Java Android Code
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I checked your answer but I got ForceClose error. Thanks for helping
– Ravikiran
Aug 27 '11 at 14:31
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node.js: read a text file into an array. (Each line an item in the array.)
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To prevent the above to throw TypeError: fs.readFileSync(...).split is not a function, you should use .toString() like this: var array = fs.readFileSync('file.txt', 'utf8').toString().split('\n');
– Qua285
Mar 19 at 10:5...