warnings

问题 Is it possible to avoid Illegal reflective access operation warning with iText PDF FontFactory.registerDirectories() and Java 11 ? Steps for reproducing the problem: Install OpenJDK 11 . Add iText PDF library v5.5.13.2 to your Java project. Call com.itextpdf.text.FontFactory.registerDirectories() . See the warning: WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.itextpdf.text.io.ByteBufferRandomAccessSource$1 to method java.nio

问题 Is it possible to avoid Illegal reflective access operation warning with iText PDF FontFactory.registerDirectories() and Java 11 ? Steps for reproducing the problem: Install OpenJDK 11 . Add iText PDF library v5.5.13.2 to your Java project. Call com.itextpdf.text.FontFactory.registerDirectories() . See the warning: WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.itextpdf.text.io.ByteBufferRandomAccessSource$1 to method java.nio

问题 Is it possible to avoid Illegal reflective access operation warning with iText PDF FontFactory.registerDirectories() and Java 11 ? Steps for reproducing the problem: Install OpenJDK 11 . Add iText PDF library v5.5.13.2 to your Java project. Call com.itextpdf.text.FontFactory.registerDirectories() . See the warning: WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.itextpdf.text.io.ByteBufferRandomAccessSource$1 to method java.nio

问题 This question already has answers here : Closed 8 years ago . Possible Duplicate: Can I make GCC warn on passing too-wide types to functions? Many times I cause bugs by passing a long to an integer function. Can I make gcc warn me when I'm doing that? 回答1: Try -Wconversion . int fn(int); int bar(long x) { return fn(x); } gcc -c t.c -Wconversion t.c: In function ‘bar’: t.c:3: warning: conversion to ‘int’ from ‘long int’ may alter its value 来源： https://stackoverflow.com/questions/10262983/make

问题 I would like to clear the warnings() list using a command line. I have tried with no success > rm(last.warning, envir = baseenv()) Error in rm(last.warning, envir = baseenv()) : cannot remove variables from the base environment any idea? 回答1: Try assign("last.warning", NULL, envir = baseenv()) 回答2: Take a look at suppressWarnings() to stop the warnings from showing up. Notice in the help page for warnings that it says: "....It is undocumented where last.warning is stored nor that it is

问题 A React.js warning was thrown: IndexPage: It is not recommended to assign props directly to state because updates to props won't be reflected in state. In most cases, it is better to use props directly. I had the following code: class IndexPage extends React.Component<IProps, IState> { constructor(props) { super(props) this.state = props } } But, when I have changed my code to: class IndexPage extends React.Component<IProps, IState> { constructor(props) { super(props) this.state = {...props}

问题 Running Xcode 12, my Swift 5 Xcode project now has warnings whenever a Decodable or Codable type declares a let constant with an initial value. struct ExampleItem: Decodable { let number: Int = 42 // warning } Immutable property will not be decoded because it is declared with an initial value which cannot be overwritten Xcode suggests changing the let to a var : Fix: Make the property mutable instead var number: Int = 42 It also suggests the fix: Fix: Set the initial value via the initializer

问题 I'm running a PHP script and continue to receive errors like: Notice: Undefined variable: my_variable_name in C:\wamp\www\mypath\index.php on line 10 Notice: Undefined index: my_index C:\wamp\www\mypath\index.php on line 11 Line 10 and 11 looks like this: echo "My variable value is: " . $my_variable_name; echo "My index value is: " . $my_array["my_index"]; What is the meaning of these error messages? Why do they appear all of a sudden? I used to use this script for years and I've never had

问题 I have a regression model ( lm or glm or lmer ...) and I do fitmodel <- lm(inputs) where inputs changes inside a loop (the formula and the data). Then, if the model function does not produce any warning I want to keep fitmodel , but if I get a warning I want to update the model and I want the warning not printed, so I do fitmodel <- lm(inputs) inside tryCatch . So, if it produces a warning, inside warning = function(w){f(fitmodel)} , f(fitmodel) would be something like fitmodel <- update

来源： https://stackoverflow.com/questions/64585778/perl-can-anyone-tell-me-how-to-resolve-this-warnings