
Error installing mimemagic. Error: Failed to build g...
gem install mimemagic -v '0.3.10' --source 'https://rubygems.org/' Building native extensions. This could take a while... ERROR: Error installing mimemagic: ERROR: Failed to build gem native extension. Solution brew install shared-mime-info...
ObjectMapper objectMapper = new ObjectMapper(); String containerMatrixJSON = "{\"container_metrics\":{\"cpuRequest\":{\"results\":{\"general_info\":{\"sum\":4.4,\"mean\":1.1,\"units\":\"cores\"}}},\"cpuLimit\":{\"results\":{\"general_info\":{\"su...
You need to use `newline=""` when using a csv.writer() with Python 3.x, wb is used for Python 2.x versions. Using the sample JSON you've given, you would just need to iterate over the header fields and create a row from each entry in details. For...
2.1. ClassLoader.getResourceAsStream() Use the getResourceAsStream() method to get the InputStream when reading a file from inside a jar file. Always use this method on the ClassLoader instance. private InputStream getFileAsIOStream(final St...
What is A/B testing? A/B testing (also known as bucket testing or split-run testing) is a user experience research methodology. A/B tests consist of a randomized experiment with two variants, A and B. It includes application of statistical hypoth...
> User.reflect_on_all_associations.map(&:name) > [:addresses, :cookies, :posts]
Error on installing mailcatcher The command: gem install mailcatcher fails with error: - ERROR: Error installing mailcatcher: ERROR: Failed to build gem native extension make "DESTDIR=" compiling parser.c parser.rl:112:17: warnin...
Error on installing mailcatcher The command: gem install mailcatcher fails with error: - ERROR: Error installing mailcatcher: ERROR: Failed to build gem native extension Solution gem install mailcatcher -- --with-cflags="-Wn...
Problem Sometimes while running `bundle install` during setting up a new project, you might get the following error: Installing pg 1.2.0 with native extensions Gem::Ext::BuildError: ERROR: Failed to build gem native extension. current dir...
Reverse interview This is a list of questions which may be interesting to a tech job applicant. The points are not ordered and many may not apply to a given position, or work type. It was started as my personal list of questions, which grew over ...
String jsonData = "[\r\n" + " {\r\n" + " \"CompType\": \"Substrate\",\r\n" + " \"CompName\": \"80101-106DSA\",\r\n" + " \"CompRev\": \"BA\",\r\n" + " },\r\n" + " {\r\n" + " \"CompType\": \"Substrate\",\r\n" + " \"CompName\": \...
Suppose you want to remove a 'comments' table from a blog application. You can do so by performing the following tasks from the command line (e.g., Terminal). Step one: $ rails console Step two: $ ActiveRecord::Migration.drop_table(:c...