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detach all packages while working in R

...oadNamespace(loadedNamespaces()). However these typically are fraught with errors and could break basic functionality such as causing sessionInfo() to return only errors. This typically occurs because of a lack of reversibility in the original package's design. Currently timeDate can break irreversi...
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Is the 'override' keyword just a check for a overridden virtual method?

... is that you are explicit about what you mean, so that an otherwise silent error can be diagnosed: struct Base { virtual int foo() const; }; struct Derived : Base { virtual int foo() // whoops! { // ... } }; The above code compiles, but is not what you may have meant (no...
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WebAPI Delete not working - 405 Method Not Allowed

... In some cases removing it just from modules can produce next error: 500.21 Handler "WebDAV" has a bad module "WebDAVModule" in its module list Module: IIS Web Core Notification: ExecuteRequestHandler" solution was suggested here. Also need to remove it from handlers. <...
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How can I produce an effect similar to the iOS 7 blur view?

...ef img = self.CGImage; vImage_Buffer inBuffer, outBuffer; vImage_Error error; void *pixelBuffer; CGDataProviderRef inProvider = CGImageGetDataProvider(img); CFDataRef inBitmapData = CGDataProviderCopyData(inProvider); inBuffer.width = CGImageGetWidth(img); inBuffer.h...
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Visual Studio can't build due to rc.exe

... 2012\vc\bin or wherever you have it installed: Part 2: FIX LINK : fatal error LNK1158: cannot run ‘rc.exe’ Add this to your PATH environment variables: C:\Program Files (x86)\Windows Kits\8.0\bin\x86 Copy these files: rc.exe rcdll.dll From C:\Program Files (x86)\Windows K...
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GLib compile error (ffi.h), but libffi is installed

...n', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f12982486%2fglib-compile-error-ffi-h-but-libffi-is-installed%23new-answer', 'question_page'); } ); Post as a guest ...
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Create a folder if it doesn't already exist

...a few cases with WordPress installs with Bluehost where I've encountered errors with my WordPress theme because the uploads folder wp-content/uploads was not present. ...
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When do you use map vs flatMap in RxJava?

...n problem, just throw it with a Non checked exception : RX will call the onError handler for you. Observable.from(jsonFile).map(new Func1<File, String>() { @Override public String call(File file) { try { return new Gson().toJson(new FileReader(file), Object.class); ...
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How do I check out a remote Git branch?

... Error: "git checkout: updating paths is incompatible with switching branches. Did you intend to checkout origin/test which can not be resolved as commit?" – Xeoncross Sep 11 '12 at 20:35...
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How to deal with INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES without uninstall?

...place. Later while trying to test a new version of the app I ran into this error. I fixed it by removing the app that was installed via Marketplace (just hold and drag to the trash). Thereafter I was able to deploy my development version without any issue. ...