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[解决]Missing Constraint: Bundle-RequiredExecutionEnvironment: J2SE-1....
...新了不匹配导致。解决：安装最新的eclipse，地址：https: www eclipse org downloads 参考：https: www eclipse org forums index php t 1089568 原因：eclipse版本太老了，java版本太新了不匹配导致。
解决：安装最新的eclipse，地址：https://www.eclipse.org...
What is meant by Ems? (Android TextView)
...ent: 1.5em and margin: 1em are extremely common in
CSS.
Source:https://www.w3.org/Style/Examples/007/units
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PHP session lost after redirect
... anywhere
Make sure you redirect to the same domain. So redirecting from a www.yourdomain.com to yourdomain.com doesn't carry the session forward.
Make sure your file extension is .php (it happens!)
Now, these are the most common mistakes, but if they didn't do the trick, the problem is most likel...
Are HTTP headers case-sensitive?
...nyms. For example - would it be "Front-End-Https" or "Front-End-HTTPS" - "WWW-Authenticate" or "Www-Authenticate" - specifying all lowercase removes ambiguity by standardising the field. This in turn simplifies handling the headers all round.
– Fraser
Apr 10 '...
How to add System.Windows.Interactivity to project?
...kage Manager Console
PM> Install-Package Expression.Blend.Sdk
http://www.nuget.org/packages/Expression.Blend.Sdk/
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Windows 8.1 / Windows 10 breaks my ASP.NET / IIS : “Service unavailable”
...t click the Uninstall button on top.
Then reinstall it from here:
http://www.iis.net/downloads/microsoft/url-rewrite
Make sure your App Pool is started - or just restart IIS and it should all work again.
Edit: 8/30/16 : A similar but unrelated error can occur if you have the 'new' .NET core in...
Python requests - print entire http request (raw)?
... httplib.HTTPConnection.send= new_send
patch_send()
requests.get("http://www.python.org")
which yields the output:
GET / HTTP/1.1
Host: www.python.org
Accept-Encoding: gzip, deflate, compress
Accept: */*
User-Agent: python-requests/2.1.0 CPython/2.7.3 Linux/3.2.0-23-generic-pae
...
What is the __del__ method, How to call it?
...omplements __new__ far more than __init__. This gets confusing. See http://www.algorithm.co.il/blogs/programming/python-gotchas-1-del-is-not-the-opposite-of-init/ for an explanation and gotchas.
__del__ is not a "well-loved" child in Python. You will notice that sys.exit() documentation does not spe...
Using Emacs as an IDE
...you.
More on emacs daemon and emacs client can be found at wiki;
http://www.emacswiki.org/emacs/EmacsAsDaemon
http://www.emacswiki.org/emacs/EmacsClient
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How to copy data from one table to another new table in MySQL?
...
SELECT *
INTO newtable [IN externaldb]
FROM table1;
http://www.w3schools.com/sql/sql_select_into.asp
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