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vagrant up failed, /dev/vboxnetctl: no such file or directory

Can be useful, I found this error. The common solution is reinstall virtualbox but there are a better way. 8 Answers ...
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Accessing an SQLite Database in Swift

...? guard sqlite3_open(fileURL.path, &db) == SQLITE_OK else { print("error opening database") sqlite3_close(db) db = nil return } Note, I know it seems weird to close the database upon failure to open, but the sqlite3_open documentation makes it explicit that we must do so to avo...
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PhpStorm wrap/surround selection?

Often in coding and templating I need to wrap a certain part of text. Is there any shortcut to wrap the current selection, for example: ...
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Transaction marked as rollback only: How do I find the cause

...ataAccessException exception on a read-only transaction and I got the same error. Changing my annotation to @Transactional(readOnly = true, noRollbackFor = EmptyResultDataAccessException.class) fixed the problem. – cbmeeks Oct 25 '16 at 17:57 ...
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Process.start: how to get the output?

... I was wondering how you could deal with StandardError ?. BTW I really like this code snippet ! nice and clean. – codea Nov 27 '13 at 8:54 ...
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Saving and loading objects and using pickle

... File "C:\Python31\lib\pickle.py", line 1365, in load encoding=encoding, errors=errors).load() EOFError After you have read the contents of the file, the file pointer will be at the end of the file - there will be no further data to read. You have to rewind the file so that it will be read from ...
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Rails: What's a good way to validate links (URLs)?

...url?(uri) uri = URI.parse(uri) && uri.host rescue URI::InvalidURIError false end You can even decide to make it more restrictive. For instance, if you want the URL to be an HTTP/HTTPS URL, then you can make the validation more accurate. require 'uri' def valid_url?(url) uri = URI.par...
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Does Swift have access modifiers?

... // Second.framework – D.swift import First internal class D: B {} // error: B cannot be subclassed 2. internal Enables an entity to be used within the defining module (target). You typically use internal access when defining an app’s or a framework’s internal structure. // First.framew...
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Convert object to JSON in Android

Is there a simple method to convert any object to JSON in Android? 6 Answers 6 ...
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Fatal Error: Allowed Memory Size of 134217728 Bytes Exhausted (CodeIgniter + XML-RPC)

...hen set it to a sane value. You could prevent the script from throwing the error by setting it to 1024M. If this answer said ini_set('memory_limit', '1024M'); You could copy-paste that and be ok. By setting it to -1 you are setting yourself up to have a script that consumes all memory. Especially if...