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curl: (60) SSL certificate problem: unable to get local issuer certificate

... Actually I struggled for an hour as I did not write path inside quotes. So please take a note here curl.cainfo="/path/to/downloaded/cacert.pem" // Do not forget to write between quotes – Himanshu Upadhyay ...
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OnCreateOptionsMenu() not called in Fragment

I have an app which got one activity with 2 fragments placed horizontally. 8 Answers 8...
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.Contains() on a list of custom class objects

...eria, use Find() with a suitable predicate (lamda expression)... I'm actually arguing that you don't touch the comparison code AT ALL - you just call the right method on the list for the task you're trying to accomplish... – Martin Milan Apr 13 '10 at 12:01 ...
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Django: “projects” vs “apps”

...views.py and so on. Would it help if I said views.py doesn't have to be called views.py? Provided you can name, on the python path, a function (usually package.package.views.function_name) it will get handled. Simple as that. All this "project"/"app" stuff is just python packages. Now, how are yo...
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BLE协议—广播和扫描 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...广播方式的报文有4种,分别为可连接的非定向广播(ADV_IND)、可连接的定向广播(ADV_DIRECT_IND)、可扫描非定向广播(ADV_SCAN_IND)、不可连接的非定向广播(ADV_NONCONN_IND) 4种广播的使用场景各不相同 可连接的非定向广播(A...
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Linux/Unix command to determine if process is running?

...s arg vector. Any such approach is doomed to fail sooner or later (you actually admit to that yourself, by saying that more checks are needed). I've added my own recommendation in a separate answer. – peterh Oct 3 '13 at 10:41 ...
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How to find elements with 'value=x'?

I need to remove element that have value="123" . I know that all elements with different values are located into #attached_docs , but I don't know how to select element with value="123" . ...
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Can I force a page break in HTML printing?

... Add a CSS class called "pagebreak" (or "pb"), like so: @media print { .pagebreak { page-break-before: always; } /* page-break-after works, as well */ } Then add an empty DIV tag (or any block element that generates a box) where you wan...
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Python `if x is not None` or `if not x is None`?

I've always thought of the if not x is None version to be more clear, but Google's style guide and PEP-8 both use if x is not None . Is there any minor performance difference (I'm assuming not), and is there any case where one really doesn't fit (making the other a clear winner for my convent...
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Could not load file or assembly 'xxx' or one of its dependencies. An attempt was made to load a prog

...ss Objects 4 for .Net SDK. They ship five BusinessObjects*.dll files, but all of them are 64-bit. To get my webpage to load, I needed to click on Tools\Options, then change this setting in VS2013: share | ...