error-handling

问题 I am getting grey screen on startup just after the splash screen on android real device. I have solved all errors or red screens and after that tried again but still it remains the same. Note: I have released 2 versions of this app before this one to play store. So this is not the first one. My log Flutter run key commands. h Repeat this help message. c Clear the screen q Quit (terminate the application on the device). I/flutter (24661): <-- stops here nothing after this 回答1: Sometime it

问题 I am getting grey screen on startup just after the splash screen on android real device. I have solved all errors or red screens and after that tried again but still it remains the same. Note: I have released 2 versions of this app before this one to play store. So this is not the first one. My log Flutter run key commands. h Repeat this help message. c Clear the screen q Quit (terminate the application on the device). I/flutter (24661): <-- stops here nothing after this 回答1: Sometime it

问题 I'm new to React. I want to capture all react uncaught and unexpected errors/warnings and i would like to log the errors to an external api. I know its possible by Try Catch method but I'm planning to have it globally so that other developer need not to write the code each and every time. I tried window.onerror/addEventListener('error', function(e){} which only captures the Javascript errors but not react errors. This is similar to following post How do I handle exceptions?. But the solution

问题 I'm new to React. I want to capture all react uncaught and unexpected errors/warnings and i would like to log the errors to an external api. I know its possible by Try Catch method but I'm planning to have it globally so that other developer need not to write the code each and every time. I tried window.onerror/addEventListener('error', function(e){} which only captures the Javascript errors but not react errors. This is similar to following post How do I handle exceptions?. But the solution

问题 Say I have this http handler: func SomeHandler(w http.ResponseWriter, r *http.Request) { data := GetSomeData() _, err := w.Write(data) } Should I check the error returned by w.Write ? Examples I've seen just ignore it and do nothing. Also, functions like http.Error() do not return an error to be handled. 回答1: It's up to you. My advice is that unless the documentation of some method / function explicitly states that it never returns a non- nil error (such as bytes.Buffer.Write()), always check

问题 Lets assume this code: Module1: Sub main() Dim cl As New Class2 On Error GoTo errorhandler1 cl.DoWork On Error GoTo 0 Exit Sub errorhandler1: MsgBox (Err.Description) End Sub Class1: Event MyEvent() Public Sub DoWork() RaiseEvent MyEvent End Sub Class2: Private WithEvents cl As Class1 Private Sub cl_MyEvent() Call Err.Raise(123, , "ErrorInClass") End Sub Private Sub Class_Initialize() Set cl = New Class1 End Sub Public Sub DoWork() cl.DoWork End Sub I expect errorhandler1 to launch and MsgBox

问题 Lets assume this code: Module1: Sub main() Dim cl As New Class2 On Error GoTo errorhandler1 cl.DoWork On Error GoTo 0 Exit Sub errorhandler1: MsgBox (Err.Description) End Sub Class1: Event MyEvent() Public Sub DoWork() RaiseEvent MyEvent End Sub Class2: Private WithEvents cl As Class1 Private Sub cl_MyEvent() Call Err.Raise(123, , "ErrorInClass") End Sub Private Sub Class_Initialize() Set cl = New Class1 End Sub Public Sub DoWork() cl.DoWork End Sub I expect errorhandler1 to launch and MsgBox

问题 That error message logged to the chrome console from a long-pending request after around 15 minutes. It looks client-side error because server processing still worked. I did not find any article related to this error message. can any buddy let me know how to solve this issue? 回答1: According to the chromium source I think it means that a spdy ping timed out. ... {net::ERR_EMPTY_RESPONSE, "http.response.empty"}, {net::ERR_HTTP2_PING_FAILED, "spdy.ping_failed"}, {net::ERR_HTTP2_PROTOCOL_ERROR,

问题 I have a blog going for over 10 years & I would like to run a piece of Javascript on it that catches broken links. I was using: function trackError(e) { var ie = window.event || {}; var errMsg = e.message || ie.errorMessage || "404 error on " + window.location; var errSrc = (e.filename || ie.errorUrl) + ': ' + (e.lineno || ie.errorLine); mailme([errMsg, errSrc]); } // Triggering an error in the console: // You have to use something like setTimeout(function() { notThere(); }, 0); window

问题 I have a blog going for over 10 years & I would like to run a piece of Javascript on it that catches broken links. I was using: function trackError(e) { var ie = window.event || {}; var errMsg = e.message || ie.errorMessage || "404 error on " + window.location; var errSrc = (e.filename || ie.errorUrl) + ': ' + (e.lineno || ie.errorLine); mailme([errMsg, errSrc]); } // Triggering an error in the console: // You have to use something like setTimeout(function() { notThere(); }, 0); window