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Can't find the 'libpq-fe.h header when trying to install pg gem
...SQL, but the problem is installing the pg gem. It gives me the following error:
41 Answers
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Changing java platform on which netbeans runs
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I keep getting error Invalid jdkhome specified --------------------------- Cannot locate java installation in specified jdkhome: C:\Program Files (x86)\Java\jdk1.5.0_03\bin"; Do you want to try to use default version?"
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在线服务的黑天鹅 - 资讯 - 清泛网 - 专注C/C++及内核技术
...领域其实有3个词汇去描述的。描述的顺序通常是 fault -> error -> failure。这方面大多定义引用来自《Patterns for Fault Tolerant Software》一书，在书中描述如下。
用一个通俗的例子来描述三者的定义是，如果把fault比作是数据库网线断...
What's the difference between a Future and a Promise?
...;
})
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.then(function(result){
console.log(result);
})
.catch(function(error){
console.log(error);
})
which makes asynchronous computation to look like synchronous:
try {
op1Result = syncOp1();
// do something
op1Result = syncOp2();
// do something more
op3Result = syncOp3();
//...
Excel “External table is not in the expected format.”
...code shown below. I get an "External table is not in the expected format." error unless I have the file already open in Excel. In other words, I have to open the file in Excel first before I can read if from my C# program. The xlsx file is on a share on our network. How can I read the file without h...
Python unit test with base and sub class
...I think the setUpClass method below is the best and is less prone to human error. Either that or wrapping the BaseTest class in a container class which is a bit more hacky but avoids the skip message in the test run printout.
– David Sanders
Oct 17 '14 at 16:2...
How to normalize a NumPy array to within a certain range?
...erently. E.g. interpolate the value, replacing in with e.g. 0, or raise an error.
Finally, worth mentioning even if it's not OP's question, standardization:
e = (a - np.mean(a)) / np.std(a)
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Lambda capture as const reference?
...eference: [&foo = this->foo] inside of a const function gives me an error stating that the capture itself discards qualifiers. This could be a bug in GCC 5.1, though, I suppose.
– Kyle Strand
Apr 28 '16 at 1:01
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How do I specify the Linq OrderBy argument dynamically?
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When I try this I get the error: LINQ to Entities does not recognize the method 'System.Object GetValue(System.Object, System.Object[])' method, and this method cannot be translated into a store expression. Does this answer only apply to Linq To SQL?
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How can I replace every occurrence of a String in a file with PowerShell?
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Thanks - I get an error "replace : Method invocation failed because [System.Object[]] doesn't contain a method named 'replace'." though?
– amateur
Jun 17 '13 at 9:42
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