debugging

问题 I spent the last 4 hours trying to set up Eclipse TPTP memory profiling on a Tomcat instance that must be run remotely (i.e. not in Eclipse). This should be possible according to the TPTP and Agent Controller docs. I installed the TPTP components (4.6.0) into my Eclipse (Galileo) workbench, along with the Agent Controller according to the instructions on the website. To enable the agent, I added the following options to the command line that starts the Tomcat instance: -agentlib:JPIBootLoader

问题 When writing an ASP.NET website, Visual Studio allows me to specify which browser to use for debugging. I've just started playing with MVC 3 and I'm not seeing any such option. With MVC, debugging occurs in Google Chrome, which is fine except that Visual Studio doesn't recognize when I've closed the browser. I must then manually shut down the debugger. Is there a way to either A) have the Visual Studio debugger recognize when I've stopped debugging the website in Chrome, or B) specify that IE

问题 I have a complex javascript object which is generated by some third party tool , which looks like this (inside Chrome Developer Tools Watch panel): I'm interested in reading those text and value attributes of i Object. I've never seen such <function scope> thing before. In such cases, How to access values from <function scope> 's Closure in Chrome Developer tool's Watch panel? Or is it not possible? 回答1: A closure is a special kind of object that combines two things: a function, and the

问题 Update: Issue being tracked here Edit: I may not be the only one with this issue. I missed this which was also posted today and it looks related: PyCharm debugger doesn't work Below is a minimal example that runs fine on both Windows 7 and Ubuntu 14.04 when using Pycharm Professional PyCharm 2016.1 Build #PY-145.260, built on March 22, 2016 JRE: 1.8.0_60-b27 x86 JVM: Java HotSpot(TM) Server VM by Oracle Corporation Now the uber-weird part: On Ubuntu's Pycharm debugger I get no issue. However,

问题 I am writing a multi-threaded Windows application in Microsoft Visual C# 2008 Express Edition. Recently, the debugger has been acting strangely. While I am Stepping Over lines of code using the F10, sometimes it will interpret my Step Over (F10) command just like a Continue command (F5) and then the program will resume running and the debugging session will be done. Does anyone know why this happening? In what circumstances can the Step Over command result in the debugger stopping? It's not a

问题 I want to build a palindrome checker in javascript. All non-letter characters should be removed, so that a phrase like "A man, a plan, a canal. Panama" can also be a palindrome. function reverse(str) { return str.split("").reverse().join(""); } function palindrome(str) { str = str.replace(/[^a-zA-Z]+/,"").toLowerCase(); if(str == reverse(str)) { return true; } else { return false; } } Now, where is the mistake in the above lines? The code works on some examples. But for instance "A man, a

问题 I am not sure how to track down the following crash: It happens when Unloading a Designtime Package that is used in-house at my company. It is our code, thus it is our bug to fix, not a third party component vendor problem. It apppears that a thread is involved, but since it happens in the Function ThreadProc in Classes.pas, I'm guessing it's a bare System/RTL thread without even a TThread class wrapper that I should be searching for in our code. (Question Part A: Is that so?) The call stack

问题 When launching my app i get the launch screen for about 2-3 seconds and only then my first UIViewController appears. And some times my ViewDIdAppear is being called before the UIViewController is actually appearing. I have a pretty big storyboard (15 screens). I have some flags that i check from UserDefaults (user is logged-in ...), and i initialize crashlytics and GCM. So the flags and the initializing doesn't seem to be the problem. I checked system time differences and it seems to be OK.

问题 I started using the new tuple feature in c# 7.0 but I noticed that neither in the function that returns a tuple nor in its caller is possible to check the variable values in debug mode. Instead an exception is shown: $exception error CS8182: Predefined type 'ValueTuple`2' must be a struct. Is there a way to get rid of that glitch and debug normally? 回答1: It seems a bug that Microsoft has fixed but it will be available in a future update (2017) https://github.com/dotnet/roslyn/pull/16930 回答2:

问题 Hello All – I am a newbie here ... trying to get my first iOS Swift (Xcode 11.2.1 / Swift 5 / iOS 13.2) app to open via URL and process the URL string. The app opens just fine, but the function (method?) does not appear to be getting called. Here's what I've got: class AppDelegate: UIResponder, UIApplicationDelegate { func application(_ application: UIApplication, open url: URL, options: [UIApplication.OpenURLOptionsKey : Any] = [:]) -> Bool { print("Here I iz ... in the URL responding bit.")