When I'm running program I get this error, what does it mean?
RuntimeError: illegal event name
exception RuntimeError
Raised when an error is detected that doesn’t
fall in any of the other categories. The associated value is a string
indicating what precisely went wrong.
Related
In my real time image tracking solution, whenever i am calling detectAndCompute i get an exception thrown.
The exception doesnt crash the program, and the tracking still works (on my machine) but due to the fact that it is constantly throwing the exception, I am seeing some major performance setbacks. Here is the exception:
Exception thrown at 0x00007FFF0FBEA839 in OpenCV2.exe: Microsoft C++ exception: ipp::IwException at memory location 0x0000004CB72FC5C8.
I tried printing the exception to get details with a try-catch clause but it didnt give me any info. Here is the line that throws this exception:
algo->detectAndCompute(frame, mask, keypoints2, descriptors2, false);
This is harmless, see for example https://github.com/opencv/opencv/issues/9718.
If you run your code outside of the debugger you will not see the exception printout.
In my error template, I'm sending myself an email, on exception. Like we do. Using #ERROR.diagnostics# I got a message like:
Element SOMEVAR is undefined in URL.
The error occurred on line 1.
The problem is, this error did not occur on line #1 of the file that it reported, in #ERROR.template# (mainfile.cfm) The error occured in an included file, from mainfile.cfm. Also, the error was not on line 1, but line 2.
How can I get a more accurate error message?
In python IDLE it won't print the specified error message when using sys.exit('') but in cmd.exe it will. Why?
import sys
try:
print fail
except:
sys.exit("This is an example of an error message")
Your error message is printed to stderr which is not shown in IDLE because it's run in a subprocess (see this report of your observation and this related answer). So IDLE writes it on the terminal used to start IDLE.
The documentation states about the arguments of sys.exit:
Some systems have a convention for assigning specific meanings to
specific exit codes, but these are generally underdeveloped; Unix
programs generally use 2 for command line syntax errors and 1 for all
other kind of errors. If another type of object is passed, None is
equivalent to passing zero, and any other object is printed to stderr
and results in an exit code of 1. In particular, sys.exit("some error
message") is a quick way to exit a program when an error occurs.
So, the safest way is to only pass error codes and use an additional print (or calling a custom exit-function that gives the user an analysis of what happened).
Ok so I'm using CodeBlocks for programming in C++ . I have so "random" (it doesn't happen everytime, and I'm not able to predict when it happens) error message which makes the program crash, it says :
Assertion 't = find_next_time_event( m )' failed at pulse/mainloop.c:721,
function calc_next_timeout() . Aborting .
Aborted (core dumped) .
Process returned 134 (0x86)
Core dumped is when I should not have deleted some pointer, am I right?
The thing I don't understand is what is before "Aborted, core dumepd" . Can it guide me to which kind of error I made ?
Or is it a problem with CodeBlocks (I doubt it , but that could be great :p)
*I don't put code here because I just want information about what could theorically create this kind of message . Then I'll search and if I've problems with finding the error(s), I'll put some code here ;) *
It is telling you that an assertion failed on line 721 of the file pulse/mainloop.c that is part of your source code.
An assertion is typically placed to check invariants or preconditions/postconditions. Taking a precondition as an example, this is saying "this expression has to be true in order for the code below to work correctly".
By inspecting the condition (at line 721 of mainloop.c) and understanding why it was not true in your case, you should be able to find an error in your code that lead to the failed assertion.
This isn't really a solution but this issue actually has to do with PulseAudio. I assume OP is using Linux, possibly Ubuntu, which is when this error occurs. I sometimes get the same thing when using a program written in Python. There is a noted bug about this issue in the PulseAudio Launchpad bugs.
This is some code to get an environment variable from inside Qt, however, it seems Qt's QProcessEnvironment::systemEnvironment() only reflect a new environment variable change after reboot. So I am thinking about using getenv.
However I got "error C2220: warning treated as error - no 'object' file generated" from this :
QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
const QString ENGINE_ROOT = env.value("ENGINE_ROOT", "") != "" ?
env.value("ENGINE_ROOT","") : QString(getenv("ENGINE_ROOT"));
Don't tell me something like disable /WX or lower W4 to W3, I don't want to hear this, I want to know exactly what cause
no 'object' file generated
.
"error C2220: warning treated as error - no 'object' file generated"
The error already answers your question:
A warning was generated.
Because you have told the compiler to treat warnings as errors, an error occurred.
Because an error occurred, the compiler did not generate an object file.
If you want to know what the original warning means, then you need to ask us about that warning.
I just had this problem. The real source of the confusion is that Microsoft Visual Studio lists the
error C2220: warning treated as error - no 'object' file generated
line separately from the warnings--sometimes even before the warnings--so it is not immediately apparent that the error is related to the listed warnings.
Fix all warnings listed to fix this problem.
I'll address the underlying question instead of the compilation problem.
Environment variables for any process are copied from those of its parent process when your new process is started. From that point, the only thing that can modify them is your process yourself.
In practical terms, this means that going to the Windows dialog box to change environment variables does not change those values for any existing processes. Those changes are applied to the explorer.exe process, and then any new processes launched from Explorer.
There is a possible way for a Windows application to get notified of changes made to environment variables made by Explorer. See How to modify the PATH variable definitely through the command line in Windows for details.
in my case, eliminating all useless 'object' will deal this erro