Missing mandatory Classpath entries. Resolve Project Problems. in Apache NetBeans - java

I'm working on a Java web application in Apache NetBeans. Everything is working well, but a warning message appears at the package level (first line):
Missing mandatory Classpath entries. Resolve Project Problems.
Here is a screenshot of that problem in the IDE:
The yellow bulb offers me the possibility to solve the problem, but it doesn't work.

Did you see any kind of alert? Like this, or maybe at the bottom, when you first load the project Error Missing Mandatory ClassPath? If this is your case, try clicking on the message.Netbeans need to donwload some extra files. I had the same problem and it worked for me

Related

Issue with JavaFX file in Intellij

I'm fairly new to using JavaFX and have been tinkering with it on my own in a few simple projects.
I have to collaborate with a few others for a main project, where I am seeing this conflicting issue:
I'm having an issue with the src.zip file of javafx. On my standalone projects, I do not encounter this issue. However, since working with others, this error has appeared. Prior to this, I was getting a Kotlin plugin issue, where I had to completely disable Kotlin.
Error:java: C:\Users\nolan\Javalibs\javafx-sdk-11.0.2\lib\src.zip
I'm unsure of what this issue might mean, so any help would be appreciated.
Thank you.
I had the same problem too and discovered it was because I added the JavaFX 11 SDK to Intellij incorrectly. I initially had the added library point to just the directory /lib. Since this directory includes both the jars and src.zip, Intellij will try to run both and produce the error.
To solve this, when Intellij prompts you to "Select Library Files," you need to explicitly select the files within the /lib directory which will then be added as shown here. This will also allow proper inspection of the source code without Intellij having to decompile the class file when ctrl + left clicking a class name.
Figured this out. I extracted the src.zip in the appropriate directory (deleting the zip as well), then had to change my VM Path to include:
--module-path "C:\yourpathto\javafx-sdk-11.0.2\lib;out\production" --add-modules=javafx.controls,javafx.fxml
I forgot to add ;out\production to the Module path.
A quick rebuild then solved this issue.

IntelliJ IDEA and Gradle - Cannot be applied to '(groovy.lang.Closure)'

I have a Gradle file which, whenever I load open it in IntelliJ IDEA 14.1.5, shows IDE errors for the entire file. Namely all the errors seem to be either:
java.lang.String errors
or
groovy.lang.Closure errors
I've tried clearing the file's contents and only writing the top line:
group 'com.me.blah'
but even that results in an error.
For context's sake - this is an individual module in a larger SpringBoot project. This module is a set of simple static files (with Gradle for CSS compilation, static analysis, etc), while the rest are Java modules, and are not having Gradle issues.
Can anyone think why IntelliJ would be struggling to understand this Gradle file?
I've noticed this often. When creating a new project and using the 'Gradle' template, IntelliJ seems to get it all wrong. So what I've resorted to doing is after creating a new project, delete the .idea and .iml files and re-open the project directly from the Gradle file. IntelliJ seems to better understand what is going on in this case.
For the first part of the question: group is a property, so there must be an assignment, not a function call. The right code is:
group = 'com.me.blah'
I found this suggestion in the IDEA bug tracker(IDEA-142683):
Workaround:
One can add a comment such as
//noinspection GroovyAssignabilityCheck
to suppress the warning, but this should not be necessary as these are standard every day Gradle usages.
This issue was recently updated and is marked fixed, ready for release with version 2016.2 release.
Try File | Invalidate Caches and restart. It worked for me after i mess the syntaxe somewhere else in the file.
For anyone looking for a similar fix, this boiled down to the type of the module. My module was defined in my .iml file as
type="WEB_MODULE"
I created a new Gradle module and pasted in the same contents, deleted the original, renamed the new module to have the same name as the old one, and everything worked fine. When I diffed the results the only change was that the .iml file now said:
type="JAVA_MODULE"
So there's the answer, seemingly. Change your module from "web" to "java".
For me, after trying out all this answers without result, changing the Java SDK of the project did the trick, I was on 1.8 and changed it to the newest one, but still a project level language of 8.
Hope this helps!
What I found is that this warning is from Groovy inspection of the Intelliji. So if your project is not pure groovy, you can disable this inspection by going to File -> settings -> Editor -> Inspections -> disable Groovy. Again, just a workaround.
Happened to me recently on windows. I tried all of the above but it didn't work.
What i did:
1 - I had JAVA_HOME environment variable already set. So IDEA picked that as project SDK and these warnings showed up.
2 - So, i removed the default JAVA_HOME from project SDK and manually added jdk path. Restarted and all warnings were gone.
Maybe it will help someone. Thanks.

PhoneGap Android "Could not find *.apk" [duplicate]

I know this question has been asked before and I have seen a plethora of solutions out there, yet none seem to work for me. I was able to build my apk without issues until this error started cropping up. I have tried cleaning my project, removing it from the workspace and reimporting it, removing "Java Builder" from my Builders for the project, building the project manually, reordering my java build path. I have no visible compiler issues and no problems exist in my workspace.
I did experience this issue before and solved it once by removing the project form my workspace and re-importing it and another time I solved it by removing "Java Builder" from my java build path. None seem to work this time. I currently have most of the settings set back to default (i.e. java build is checked again).
I am running windows 7 (64 bit) and using jdk1.6.0_21 via Eclipse 3.6.
Any suggestions would be greatly appreciated as I have lost loads of development time troubleshooting this already.
[Update] My locale is English & I have tried removing the debug.keystore, United States as related to issue 834
Please follow these steps; this might help you out:
Right-click your app project and go to Properties
Select Android from left-hand side list
Uncheck the "Is Library" checkbox
If your app project relies on library projects which are in your workspace, those of course need to have the "Is Library" box checked.
deleting the R.Java file in /Gen folder did the trick for me
I tried all the above solutions. but it didn't work.
The solution was to restart eclipse !!!!!!!
hope this will help someone :)
In my case this problem started after eclipse updated the plugin with the v4.0 API release. I fixed it by going to the main preferences for Eclipse and under Android->Build uncheck 'Skip packaging and dexing until export or launch'
Note: if you eclipse gives you the Unknown Command 'crunch' error then follow this post
I've tried to gather the best of other peoples answers into a step by step list of things to try in order:
Check the project is not set as a library:
Go to Project->Properties
Select Android from left-hand side list
Uncheck the "Is Library" checkbox
Clean and rebuild the project - this should delete and recreate the entire gen folder, including the R.java file mentioned in some peoples answers
Check eclipse and all the Android plugins are up to date
Close the project, exit Eclipse, reopen eclipse, reopen the project.
Go to Java Build Path > Projects and check for any incorrect project dependencies
Go to the main preferences for Eclipse and under Android->Build uncheck 'Skip packaging and dexing until export or launch'
Check JAVA_HOME is set correctly. Follow the steps in this article
If you complete the above list, and still haven't solved the issue, please leave a comment, or if you find something else that works, feel free to edit the answer and add your thing in.
Delete the project from your workspace & import again.
This worked for me.
Can't believe similar issue has been there since 2008.
http://code.google.com/p/android/issues/detail?id=834.
i'm no expert, but eclipse on Windows, doing android apps, refuses to create the default.properties file (in the app root directory). I've just copied one from another app and it works fine. Simple contents, for Android 2.2 project it just says (ignoring comments):
target=android-8
fwiw
I was having the same issue as the OP except that all these suggestions did not work. I found a solution for me.
Make sure that "Skip packaging and dexing until export or launch." is selected.
Go to Window -> Preferences -> Android -> Build. Just make sure that option is selected and apply.
I know this does not make a lot of sense, but having it unselected was giving me this error and with it selected it goes away and the apk is installed.
I am using the auto generated ant build script from android and ONLY using it as my build process in eclipse. I am not using any other build methods.
I figured it out. I was referencing JavaSE-1.5 and using JDK 1.6. I changed it to use 1.6 and that appears to fix it.
Seems like through my research that is an overloaded error message that covers a lot of error cases.
I just fixed this by reselecting a default JRE for the execution environment (JRE6 for JavaSE-1.6 in my case). It got unchecked for some reason.
This fixed my problem. I kept getting the console error in eclipse "Could not find com_android_vending_licensing.apk" and even though it didnt seem to effect the way my app ran, it was annoying. So going into the com_android_vending_licensing project properties and unchecking the "is library" option, building the project to produce the needed apk and then going back into the com_android_vending_licensing project properties and re checking the "is library" check box fixed the problem.
Run Eclipse as "Administrator" and then import the project.
None of these things worked for me. I'm trying to access native code through the jni, first with NDK samples. What I found was the build won't run if jarlist.cache is not present in the project bin directory. If I copy one from another project to that location (may need to refresh to see the folder in Eclipse), build works every time.
Clean the project and it will do. Sometimes it happens unknowingly but keep trying to solve using diff methods.
I had somehow done a Run configuration as a Java application instead of a Android.
the problem for me was I was trying to use IBM RAD which appears to not work properly for this, I installed Eclipse and now have a different error but I should be able to get past it
On my machine (Windows7, 64bit) I could fix this by setting my execution environment to a 32bit variant of the jdk (I used 1.6.0_23). And I tried a lot of things before...
SHA1's answer did it for me: after updating to the latest sdk/adt, my project refused to build an apk; unchecking the option resolved the issue.
I don't know if the update checked this, or if it was checked before but the new adt screwed things up, but things work again now :)
In my case this worked :
Delete R.Java file in /Gen folder
+
Delete all "R.Android" imports that Eclipse added to some of my java classes !!!
and rebuild the project.
remove -- R.java -- Clean the project and run again.. this worked for me ..
Find the project's folder in your system, enter it's Properties via context menu and deselect "Read only" option. Worked in my case.
This seems to be the source of the problem in many cases, moreover some solutions up there base on copying/rewriting the files in the project what makes them non-read-only.
This is caused by JAVA_HOME not being set correctly. It can be easily resolved by following the steps in this article.
Mine was caused by this problem (incompatibility between ADT and SDK), and was fixed thus:
Eclipse > Help
Install New Software
Add 'https://dl-ssl.google.com/android/eclipse/' to 'Work With'
section and press enter
After developer tools appears on the list, check it and click Next
Restart eclipse once download is finished
I my case, I had to switch from API 21 to API 19, clean and build and everything was fine again. I am using a Mac and apparently API 21 is not fully supported on Yosemite.

Failure in unit cache map load - GWT

I get this error during compile-time of my GWT project, there is no such folder as 'gwt-UnitCache' to delete, as suggested in the following questions
Weird GWT compile error
exception in GWT RPC app
I'm using IntelliJ IDEA (IDE), SmartGWT EE (Framework), JBoss AS (Server) and JPA
Here's the error log:
If you change the value of your <module rename-to='<appname>'> in .gwt.xml it will give the same error :) but then you can just delete your gwt-unitCache and all is ok :)
IntelliJ IDEA stores GWT cache files in other location than <ProjectFolder>/gwt-unitCache, which is a default directory for a cache if you are using, for example, Eclipse with GPE (Google Plugin for Eclipse).
In IDEA, GWT cache should be located by default at <your_home>/.IntelliJIdea12/system/gwt (IntelliJ IDEA 12, Linux). For other operating systems you can check Project and IDE Settings.
If you delete mentioned gwt folder contents, IntelliJ will create a new cache, which in turn might solve your Failure in unit cache... (and similar Unable to read from byte cache) problem.
I had the same problem with Eclipse.
Unfortunately looks like the only solution is the one given by Crowlix.
I tried to delete gwtCache and Temp files, but nothing worked.
The problem only got fixed when deleting the entire project and re-importing it.
I was able to fix it by systematically removing, compiling and re-adding every artifact piece.
If you're having this problem, make sure you have a structure like this:
lib contains your compile-time libraries
I am face off this same error, this tip doesn't works for me, moreover, I keep about looking for a solution, and finally, I got this advice:
Java stack overflow error
I tried with -Xss1m, but the error persists, I keep on trying, my final value was -Xss5m
I am using GWT 2.5.1 and IntelliJ 12.
I've got same problem building a project with maven.
Usign both suggestion of Nishant and #iVieL:
$ export MAVEN_OPTS="-Xms512m -Xmx1024m -Xss32m"
$ mvn clean package
you must clean your project first (Project -> Clean)
then remove /gwt-unitCache
then rebuild it.

NoSuchFieldError - IntelliJ 10

I currently have two projects. One being my main project which is TOMCAT/JSP and the second project being a jar library I'm working on.
The project I'm making a jar out of is fairly straight forward and after initally building/making and having it output a .jar file I went to the library section of the main project and pointed to it. Everything worked as expected until I tried to add additional functionality to the jar.
In that second project I added a new field to an enumeration. Now when trying to access it in the main project I'm getting the error in my TOMCAT log.
java.lang.NoSuchFieldError: MY_NEW_FIELD
I've tried deleting the jar from the output, removing the link from the library and rebuilding. Nothing seems to fix it. Is there something similar to "clean" that I can use to resolve this, or is there something else I need to do?

Categories