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You need to use a Theme.AppCompat theme (or descendant) with this activity

...from @MarkKeen in the comments above as I had the same problem. I had the error stated at the top of the post and happened after I added an alert dialog. I have all the relevant style information in the manifest. My problem was cured by changing a context reference in the alert builder - I changed:...
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Bash: Copy named files recursively, preserving folder structure

...s shown if filenames contain newlines — then you normally end up with an error message about two (or more) filenames not being found for each newline in a filename. (Sometimes, you might get fewer messages — but that requires considerable care in constructing the test case.) . When I used cpio,...
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JavaScript/jQuery to download file via POST with JSON data

...eate two server functions. The first validated the data. If there was an error, it would be returned. If it was not an error, I returned all of the parameters serialized/encoded as a base64 string. Then, on the client, I have a form that has only one hidden input and posts to a second server fun...
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Iterating over all the keys of a map

Is there a way to get a list of all the keys in a Go language map? The number of elements is given by len() , but if I have a map like: ...
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What is the maximum amount of RAM an app can use?

...he heap limit. And, since Android 3.0, apps can request a "large heap", usually in the hundreds of MB range, but that's considered poor form for most apps. Furthermore, I noticed that some apps of mine crash with an OutOfMemoryException when using around 30-40 Megabytes. Bear in mind that the ...
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How to remove the first and the last character of a string

... Here you go var yourString = "/installers/"; var result = yourString.substring(1, yourString.length-1); console.log(result); Or you can use .slice as suggested by Ankit Gupta var yourString = "/installers/services/"; var result = yourString....
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What is the purpose of the single underscore “_” variable in Python?

... gettext documentation for example), as in code like raise forms.ValidationError(_("Please enter a correct username")). # the usage of underscore in translation comes from examples in the doc # that have been copy/pasted over decades, like this one: import gettext gettext.bindtextdo...
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__FILE__, __LINE__, and __FUNCTION__ usage in C++

... Messing with #line is very useful for pre-processors that want to keep errors reported in the user's C code in line with the user's source file. Yacc, Lex, and (more at home to me) ESQL/C preprocessors do that. share ...
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Set the value of a variable with the result of a command in a Windows batch file

...theValue=`command` Consider the case where the command fails, causing an error. In the Unix shell version, the assignment to "theValue" still occurs, any previous value being replaced with an empty value. In the Windows batch version, it's the "for" command which handles the error, and the "do" ...
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How many concurrent AJAX (XmlHttpRequest) requests are allowed in popular browsers?

...r <?php /* Author: Luis Siquot Purpose: Check ajax performance and errors License: GPL site5: Please don't drop json requests (nor delay)!!!! */ $r = (int)$_GET['r']; $w = (int)$_GET['w']; if($r) { sleep($w); echo json_encode($_GET); die (); } //else ?><head> <sc...