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No route matches [GET] /assets

... to test in the production environment. I ran RAILS_ENV=production rake assets:precompile which generated all of my assets in /public/assets. The problem is that when I start my app w/ RAILS_ENV=production rails s thin I get: ...
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Create a GUID in Java

...dom random) { long msb = 0; long lsb = 0; // (3) set all bit randomly if (random instanceof SecureRandom) { // Faster for instances of SecureRandom final byte[] bytes = new byte[16]; random.nextBytes(bytes); msb = toNu...
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Java Keytool error after importing certificate , “keytool error: java.io.FileNotFoundException & Acc

... setting the tomcat directory to read-only will cause this exception – svarog Nov 18 '17 at 20:25 ...
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Why does the is operator return false when given null?

...nce (or nullable) type One would be implicitly assuming that a type is a set of values, and that assignment compatibility of a value y with a variable of type X is nothing more nor less than checking whether y is a member of set x. Though that is an extremely common way of looking at types, that...
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Is there a rule-of-thumb for how to divide a dataset into training and validation sets?

...e a rule-of-thumb for how to best divide data into training and validation sets? Is an even 50/50 split advisable? Or are there clear advantages of having more training data relative to validation data (or vice versa)? Or is this choice pretty much application dependent? ...
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Is there a command to refresh environment variables from the command prompt in Windows?

...ironment variables, so this is a combined solution. Create a file named resetvars.vbs containing this code, and save it on the path: Set oShell = WScript.CreateObject("WScript.Shell") filename = oShell.ExpandEnvironmentStrings("%TEMP%\resetvars.bat") Set objFileSystem = CreateObject("Scripting.f...
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How to change file encoding in NetBeans?

... work for everything: netbeans.org/bugzilla/show_bug.cgi?id=179585 ... was set in that netbeans.conf, but does not work for JSPs ... – FibreFoX Sep 13 '16 at 15:24 3 ...
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Access Control Request Headers, is added to header in AJAX request with jQuery

... Here is an example how to set a request header in a jQuery Ajax call: $.ajax({ type: "POST", beforeSend: function(request) { request.setRequestHeader("Authority", authorizationToken); }, url: "entities", data: "json=" + escape(JSON.stri...
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What is the instanceof operator in JavaScript?

...e of the String constructor function into the color1 var, rather than just setting it to the return value. I think this better shows what the new keyword does; function Test(name){ this.test = function(){ return 'This will only work through the "new" keyword.'; } return name; } ...
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Command line CSV viewer? [closed]

... Have a look at csvkit. It provides a set of tools that adhere to the UNIX philosophy (meaning they are small, simple, single-purposed and can be combined). Here is an example that extracts the ten most populated cities in Germany from the free Maxmind World Ci...