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wrong argument type Class (expected Module) (TypeError)

I'm writing some tests in webrat with sinatra, and as part of that I need sessions. The webrat wiki mentions that I need to call use Rack::Session::Cookie instead of enable :sessions - I have done this. This particular test looks like this: class RegisterNewUserTest < Test::Unit::TestC . . .阅读更多

ERROR KeyProviderCache: Could not find uri with key

Below is the simple code to create HIVE table, and load data in it. import java.util.Properties import org.apache.spark.SparkContext import org.apache.spark.SparkConf import org.apache.spark.sql.SQLContext import sqlContext.implicits._ val conf = new SparkConf().setAppName("HIVE_Test" . . .阅读更多

Laravel错误:方法保存不存在

I've been create a code for updating data to database, but I'm get error like below. when I debugging the code using dd(), the value was true. what's wrong with my save() method ? BadMethodCallException in Macroable.php line 74: Method save does not exist. this my controller public fun . . .阅读更多

TS - 只能使用'new'关键字调用void函数

I am getting this weird error from TypeScript: "Only a void function can be called with the 'new' keyword." What? The constructor function, just looks like: function Suman(obj: ISumanInputs): void { const projectRoot = _suman.projectRoot; // via options this.fileName = obj.file . . .阅读更多

MinGW g ++:使用to_string时vsnprintf的多个定义

I just started using MinGW for Windows. When trying to create executable using g++ a.cpp -o a.exe -std=c++14 for the code below: #include <string> using namespace std; int main() { string x = to_string(123); return 0; } I'm getting following error: C:/mingw/bin/../lib/gcc/mi . . .阅读更多