Cannot Resolve Symbol Error In Java Compilation
Contents |
not been imported properly, the name is misspelt (including incorrect cAsE) or the class simply does not exist. Another possibility, pointed out by DavidBlaikie, is that
Cannot Find Symbol Error In Java Compile
the class is not available on the command line, and a common cause cannot resolve symbol java intellij of this is having your current working directory set to somewhere inside other packages, rather than at the project's root.
Cannot Resolve Symbol Java Android Studio
This applies if you have either no CLASSPATH set, or a CLASSPATH which has '.' (the current directory) in it. Variable namess -- If it is a variable name, you did not declare your java cannot resolve symbol list variable before attempting to use it, or you misspelled it (that includes having the incorrect case). Another possibility is that the variable is in the wrong scope, e.g.: class X { int x=5; } class Y { public static void main(String[] args) { System.out.println(x); //x cannot be resolved //now for a working version: int x=6; System.out.println(x); } } Methods -- On a method name, the same things java cannot resolve symbol println apply as for variable names, plus you may have given the method the wrong parameter types, e.g., calling add(int) where you should have called add(Object). You could also get this error when trying to invoke a constructor that doesn't exist or is not visible, e.g.: class X { private X(int y) { } } X x=new X(5); //this won't work, remove 'private'. X x=new X("Hello"); //this won't work, add a constructor as follows: class X { X(int y) { } public X(String string) { } } X x=new X("Hello"); //this works now. A small point with the above is that instead of just removing 'private' you should probably replace it with 'public'. Constructors -- If you called a constructor with the wrong parameters, you can get a cannot resolve symbol error, but the error will include the word 'constructor'. Check the original constructor to see what you should have used. Check the types of parameter in the API, compared to the types that you used (as reported in the compiler error message). The order of the types should be the same too. -- RickyClarkson CategoryJava View edit of May 12, 2012 or FindPage with title or text search
here for a quick overview of the site Help Center Detailed answers to any questions you might have
Java Cannot Resolve Symbol String
Meta Discuss the workings and policies of this site About Us Learn java cannot resolve symbol t more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us
Java Import Cannot Resolve Symbol
Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like http://c2.com/cgi/wiki?CannotResolveSymbol you, helping each other. Join them; it only takes a minute: Sign up What does a “Cannot find symbol” compilation error mean? up vote 110 down vote favorite 38 Please explain the following about the "Cannot find symbol" error: What does this error mean? What things can cause this error? How does the programmer go about http://stackoverflow.com/questions/25706216/what-does-a-cannot-find-symbol-compilation-error-mean fixing this error? This question is designed to be a comprehensive question about "cannot find symbol" compilation errors in Java. java compiler-errors cannot-find-symbol share|improve this question edited Feb 27 at 17:29 BalusC 682k20324712691 asked Sep 7 '14 at 1:12 Stephen C 386k44410738 add a comment| 6 Answers 6 active oldest votes up vote 141 down vote accepted 1. What does a "Cannot find symbol" error mean? Firstly, it is a compilation error1. It means that either there is a problem in your Java source code, or there is a problem in the way that you are compiling it. Your Java source code consists of the following things: Keywords: like true, false, class, while, and so on. Literals: like 42 and 'X' and "Hi mum!". Operators and other non-alphanumeric tokens: like +, =, {, and so on. Identifiers: like Reader, i, toString, processEquibalancedElephants, and so on. Comments and whitespace. A "Cannot find symbol" error is about the identifiers. When your code is compiled, the compiler needs to work ou
to 5 of 5 Thread: How can I fix "Cannot resolve symbol" error LinkBack LinkBack URL About LinkBacks Thread Tools Show Printable Version Email this Page… Subscribe to this Thread… Search Thread Advanced Search Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode http://www.java-forums.org/intellij-idea/44079-how-can-i-fix-cannot-resolve-symbol-error.html 05-15-2011,01:02 AM #1 yma16 Member Join Date Apr 2011 Posts 52 Rep Power 0 How can I https://bytes.com/topic/java/answers/162239-beginners-compile-error-cannot-resolve-symbol fix "Cannot resolve symbol" error Hi, I put a class file under the classes folder. I do not have the java file for the class. When I use the class in the java file that contains main(), it gave me the "Cannot resolve symbol" error. How can I fix the problem? Thanks a lot. Reply With Quote 05-15-2011,02:00 AM #2 yma16 Member Join Date Apr cannot resolve 2011 Posts 52 Rep Power 0 after I compiled other java files, I found the classes folder is not the one to hold the class files. The folder is inside out\production folder. But after I put the class with other classes, the error is still there. How can I let IDEA know there is a new class? Reply With Quote 05-15-2011,02:05 AM #3 yma16 Member Join Date Apr 2011 Posts 52 Rep Power 0 The Textpad4 compiled the files ok. It must be IEAD cannot resolve symbol 10's problem. Reply With Quote 05-15-2011,02:59 AM #4 RichersooN Senior Member Join Date Jan 2011 Location Rizal Province, Philippiines Posts 167 Rep Power 0 you could use absolute path Reply With Quote 05-16-2011,12:28 PM #5 Tolls Moderator Join Date Apr 2009 Posts 12,937 Rep Power 22 Under the libraries bit of module settings you need to attach classes. Assuming this is a standalone class you'll need to stick it in a directory of its own, ensuring its location in that directory (that is the directory path) matches its package. Then attach that folder as a class folder. It is unusual to import a single class into code, which is why this may sound a long winded way of doing it. Reply With Quote « add POJO servlet in EJB web service | How to display the console window? » Similar Threads Do you know why I'm getting "cannot find symbol" error? By basla in forum New To Java Replies: 5 Last Post: 04-24-2011, 03:21 PM Error "can not find symbol variable" By FullMetalHollow in forum New To Java Replies: 5 Last Post: 10-04-2009, 09:51 PM genjar - "Unable to resolve:" By angryboy in forum New To Java Replies: 0 Last Post: 06-28-2009, 06:48 AM the dollar sign "$", prints like any other normal char in java like "a" or "*" ? By lse123 in forum New To Java Replies: 1 Last Post: 10-20-2008, 07:35 AM "Cannont find symbol Constructor" error By Welsh in forum New To J
your question and get tips & solutions from a community of 418,469 IT Pros & Developers. It's quick & easy. beginners Compile error cannot resolve symbol P: n/a Tony Johansson Hello! I get compile error when compiling using the command javac from the command terminal window(CMD). I have just two classes which are called HelloWorld.java and Slask.java. I have both classes in the directory called temp and I do cd temp to this directory. Then I do javac HelloWorld.java Now I get the compile error HelloWorld.java:8 cannot resolve symbol symbol : class Slask location: class helloWorld Slask slask = new Slask(); //And the top sign is pointing at the first Slask HelloWorld.java:8 cannot resolve symbol symbol : class Slask location: class HelloWorld Slask slask = new Slask(); //And the top sign is pointing at the last Slask If I use for example the Blue J IDE than it works or if I put these two files in a project and compile with Microsoft visualStudio J# it also works. But why do I get compile error when using the javac from the terminal window(cmd) import java.io.*; public class HelloWorld { private String out; public HelloWorld() { Slask slask = new Slask(); out = "Hello world"; } public void printHelloWorld() { System.out.println("skriver ut:" + out); } public static void main(String args[]) { HelloWorld hw = new HelloWorld(); hw.printHelloWorld(); } } import java.io.*; public class Slask { private String out; public Slask() { out = "slask"; } public void printslask() { System.out.println("skriver ut:" + out); } } //Tony Sep 11 '05 #1 Post Reply Share this Question 1 Reply P: 18 UniDyne Try: Expand|Select|Wrap|Line Numbers javac-cp.*.java This should compile. The trick is to tell Java what the classpath is. "-cp ." tells Java that the classpath is the current directory. If you wanted to include other directories, you would list them as well, separated by semicolons: Expand|Select|Wrap|Line Numbers javac-cp.;c:\my\dir\here\;c:\some\other\path;c:\path\to\jarFile.jar*.java Oct 5 '05 #2 This discussion thread is closed Start new discussion Replies have been disabled for this discussion. Similar topics glibc ARM cross compile error compilation error : cannot resolve symbol Fw: [wxPython-users] 1>make_buildinfo.obj : error LNK2019: unresolvedexternal symbol __imp__RegQueryValueExA@24 referenced infunction _make_buildinfo2 cstdio compile errors w/ MSVC7.0 I cannot compile embedded SQL in C++ programs with RHEL 3 ES.