runtime-error | 易学教程

How to suppress all JavaScript runtime errors?

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How can I suppress all JavaScript runtime error popups, from the programmers side? To suppress all JavaScript errors there seems to be a window.onerror event. If it is replaced as early as possible(e.g. right after the head) by a function which returns true - there will be no error popups, which is quite useful after debugging is done. <head> <script type="text/javascript"> window.onerror = function(message, url, lineNumber) { // code to execute on an error return true; // prevents browser error messages }; </script> ... Error Logging is possible too, as explained here Leonardo Ciaccio I made

Why am I getting 'Floating point exception: 8'

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问题 I'm trying to calculate all the prime numbers from 0 - 100 and I'm getting a floating point exception, could anyone tell me why? (If it helps I'm using gcc) #include <stdio.h> int main(void) { int nums[100], i; for(i=0;i<100;i++) nums[i] = i; int j,k,l,z; for(i=1;i<100;i++) for(j=2;j<100;j++) if((nums[i] % nums[j]) == 0) { nums[j] = 0; } for(i=0;i<100;i++) if(nums[i] != 0) break; for(z=0;z<100;z++) { for(k=i;k<100;k++) for(l = (k+2);l < 100;l++) if((nums[k] % nums[l]) == 0) nums[k] = 0; } for

Android app unable to start activity componentinfo

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I'm a new Android programmer and recently, a lot of my projects have been getting this error: 07-31 23:45:19.592: ERROR/AndroidRuntime(716): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.amrit.musifind/com.amrit.musifind.Main}: java.lang.NullPointerException Can anyone help me solve this problem? Here's the entire logcat stack trace: 07-31 23:45:18.512: INFO/ActivityManager(63): Starting activity: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.amrit.musifind/.Main } 07-31 23:45:18.682: INFO/ActivityManager(63):

iOS crash when testing on device - debug logs

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I've begun testing my iOS app on my iPhone. Everything works great for a week or so and then my app starts to crash immediately when I try to open it. When I check the logs for my phone (Window-Devices-Select my iPhone), I see the following log messages. <Notice>: Submitted job with label: UIKitApplication:com.app.App-Name[0x9fed][63] <Notice>: /private/var/containers/Bundle/Application/64152E86-B292-47E5-A12D-27E5E23CACFF/App-Name.app/App-Name not valid: 0xe8008015: A valid provisioning profile for this executable was not found. <Error>: Unable to obtain a task name port right for pid 14847:

Catch completely unexpected error

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问题 I have a ErrorRecorder App, which prints the error report out and asks if the user wants to send that report to me. Then, I have the main app. If an error occurs, It writes the error report to a file and asks ErrorRecorder to open that file to show user the error report. So I am catching most of my errors using Try/Catch. However, what if an error occurs that was completely unexpected and it shuts down my program. Is there like an Global/Override method or something of that kind, that tells

Activity did not call finish? (API 23)

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I am getting the following error and i have no clue as to why its happening. Error: 08-23 17:07:46.533 22454-22454/com.a.b.c E/AndroidRuntime﹕ FATAL EXCEPTION: main Process: com.a.b.c, PID: 22454 java.lang.RuntimeException: Unable to resume activity {com.a.b.c/com.a.b.c.MainActivity}: java.lang.IllegalStateException: Activity {com.a.b.c/com.a.b.c.MainActivity} did not call finish() prior to onResume() completing at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3103) at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3134) at android.app.ActivityThread

ValueError: math domain error

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I was just testing an example from Numerical Methods in Engineering with Python . from numpy import zeros, array from math import sin, log from newtonRaphson2 import * def f(x): f = zeros(len(x)) f[0] = sin(x[0]) + x[1]**2 + log(x[2]) - 7.0 f[1] = 3.0*x[0] + 2.0**x[1] - x[2]**3 + 1.0 f[2] = x[0] + x[1] + x[2] -5.0 return f x = array([1.0, 1.0, 1.0]) print newtonRaphson2(f,x) When I run it, it shows the following error: File "example NR2method.py", line 8, in f f[0] = sin(x[0]) + x[1]**2 + log(x[2]) - 7.0 ValueError: math domain error I have narrowed it down to the log as when I remove log and

VBA code string to cell not working - run time error 1004

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I'm trying to accomplish something very simple. Actually it used to run normally but when I changed to windows 7 + Office 2013 it just stopped working. The following line in VBA won't work: Worksheets("Charts").Cells(2, 7) = "=" & "23,45" & "/PL!C" & 2 Charts is an existent sheet of mine and PL is another existent sheet. If I add watch to the right hand side equation I get the following formula, which when pasted to the cell (manually) does work. =23,45/PL!C2 The error I'm getting is: Run-time error '1004': Application-defined or object-defined error I've looked into several run time error

WindowsError: [Error 193] %1 is not a valid Win32 application in Python

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问题 I wish to import liblas module in Python 2.7 on window 64bit. If I import the module with IDLE (Python GUI) I have no problem. If I use PyScripter "PyScripter-v2.5.3-x64-Setup.exe" I get this error message. >>> import liblas Traceback (most recent call last): File "<interactive input>", line 1, in <module> File "C:\Python27\lib\site-packages\liblas\__init__.py", line 2, in <module> from core import get_version File "C:\Python27\lib\site-packages\liblas\core.py", line 138, in <module> las =

Python: RuntimeError: super-class init() of %S was never called

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I tried to do some operation ( setParent ) on an object in Python (an instance of a class which inherits from a different class - to be specific, QtGui.QLabel ), but during runtime the above error was raised. The object itself has had some fields with actual content (verified on debug), but from some reason I couldn't "use" it. What does the error mean and how can I fix it? For some additional information, I shall say that the object was returned from a static method before I tried to do this operation on it. The subclass has a __init__() function of its own: def __init__(self, image, father):