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Can someone explain the right way to use SBT?
...kKey[Unit]("Fetch meaning of life")
fooTask := {
import scalaj.http._ // error: cannot resolve symbol
val response = Http("http://example.com").asString
...
}
However this will error saying missing import scalaj.http._. How is this possible when we, right above, added scalaj-http to libraryD...
How do I parse a string to a float or int?
...
int(a) will give an error that the string isn't a valid integer: ValueError: invalid literal for int() with base 10: '545.222', but converting from a float to an int is a supported conversion.
– David Parks
...
How serious is this new ASP.NET security vulnerability and how can I workaround it?
...tes with a custom URLScan rule.
Basically make sure you provide a custom error page so that an attacker is not exposed to internal .Net errors, which you always should anyways in release/production mode.
Additionally add a random time sleep in the error page to prevent the attacker from timing th...
Usages of Null / Nothing / Unit in Scala
... b: Boolean =
if (1 > 2) false
else throw new RuntimeException("error")
the else clause is of type Nothing, which is a subclass of Boolean (as well as any other AnyVal). Thus, the whole assignment is valid to the compiler, although the else clause does not really return anything.
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PSQLException: current transaction is aborted, commands ignored until end of transaction block
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I got this error using Java and PostgreSQL doing an insert on a table. I will illustrate how you can reproduce this error:
org.postgresql.util.PSQLException: ERROR:
current transaction is aborted, commands ignored until end of transac...
linq where list contains any in list
...r search box, it searches any character in Person_Name column, i got this error :'DbIntersectExpression requires arguments with compatible collection ResultTypes' so i tried .StartWith, .EndsWith, .Contains from here it works, but what can be done to use your query
– shaijut
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Evaluate expression given as a string
...l(parse(text="gray")))
[1] "function"
> class(eval(parse(text="blue")))
Error in eval(expr, envir, enclos) : object 'blue' not found
See also tryCatch.
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Manipulating an Access database from Java without ODBC
...class was stuck with this issue believing it to be a file system privilege error. Helped me loads and it took a surprising amount of digging to realize Oracle done away with the JDBC-ODBC bridge from Java 8.
– wilbomc
Jan 22 '15 at 1:23
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In C#, how to check if a TCP port is available?
In C# to use a TcpClient or generally to connect to a socket how can I first check if a certain port is free on my machine?
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nginx - nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)
All of a sudden I am getting the below nginx error
17 Answers
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