Im trying to listen to a directory for changes, then discovered java.nio.* was developed to handle efficiently such tasks and more. Then downloaded jdk1.7.0_02 from oracle and started eclipse with it. Then created new java project, tryed to implement some class from java.nio.file and Oh my eyes! "The import java.nio.file cannot be resolved".
Do i have to find some .jar in the whole jdk1.7.0_02 directory that contains such package? or is something wrong with my classpath?
Thank you in advance!!
You've different version of JDKs. You just need to set JDK7/JRE7 version eclipse project. You may also select the Execution environment JRE to JavaSE 7 while creating a new project.
The JDK your projects use to compile, the version of the resulting class files, the JRE they used to execute and the JDK eclipse runs with are widely independent settings.
The New I/0 is named as the NIO in javaSE 7.0 ("Dolphin").
The below link described as in details.
wiki - NIO
Related
I am following this tutoriel to use C library in Kotlin (Android Studio) https://jonnyzzz.com/blog/2018/05/28/minimalistic-kn/ But I can’t find the how to install/download the cinterop tool both in Windows and Ubuntu I have the error “cinterop: command not found” ! Does anybody please knows how to install cinterop ? Thank you in advance
This tool is a part of the kotlin-native distribution, and it does not make any sense to use it without the Kotlin/Native compiler. So, in fact, you would like to get all the distribution here, and install it correctly.There are three main approaches to the Kotlin/Native installation. All of them are described in the documentation.
Installing it with the IntelliJ IDEA. You should just get an IDE and let it install everything on its own. It will download all tools and put them to the following location: ~/.konan/kotlin-native-prebuilt-<osName>-<kotlinVersion>/bin/. Then you will be able to add this folder to your PATH and call the tool from CLI.
Installing using the Gradle build system. Quite similar, but this one will require manual installation of the Gradle. The first run will also download all tools and pack them to the same location as in the IDE case.
Installing the CLI tool. This looks like the most appropriate way to follow the tutorial, but won't help a lot when you start working on more sophisticated projects. In general, you should just download the latest version of the Kotlin/Native, unpack it to some folder and add this folder to your PATH.
Using JBoss Studio and importing sample jboss-forge-html5-archetype. When you click next; shows that plugin AngularJS Eclipse needs to be installed. When I try Download and Install it fails. It says it is already installed.
Has anyone seen this issue before? Where does JBoss Studio keep it's log files? Where does JBOss Studio list it's plugins? How do you un-install a plugin?
Thanks!
Log files are stored the same way as plain Eclipse does. Check in your ~/devstudio/ folder for .log files, or check your workspace's folder for a .log file. Or check the Error Log view while running Devstudio.
To list installed plugins / features, from within Devstudio,select Help > About. You can also uninstall features (not plugins) from that dialog.
If a feature needed by a quick start is already installed then you shouldn't need to reinstall it... But maybe you need to update it?
What version of Devstudio are you running? Which OS & version? Which JDK vendor & version?
I am using Indigo on a Mac Pro (10.9.1). I updated to Java1.7 in order to run some updated Google Play Service samples. Under Installed JREs, JAVA7 is shown as the only and default choice, which points to the new Java path. But when I start Eclipse, it started complaining that "JRE version is 1.6.0; version 1.7.0 or later is needed to run Google plugin for Eclipse".
I tried to add the vm option in eclipse.ini, i.e. I added
-vm
/Library/Java/JavaVirtualMachines/jdk1.7.0_51.jdk/Contents/home/bin/java
above "-vmargs" as described here: http://wiki.eclipse.org/Eclipse.ini.
It doesn't make any difference though. Since then, I have uninstalled GPE from Eclipse and installed them again via "install new software" from https://dl.google.com/eclipse/plugin/3.7. Still the same problem. Under Google->App Engine, there is an error message "Failed to initialize App Engine SDK (path)". This points to appengine-java-sdk-1.8.9.
I have checked my Java version using all means I am aware of, i.e. from run Java -version, using Java's control panel, output from code... They all show I am using Java 1.7.0.51.
Any help is appreciated!
Edit: Google has provided a solution that works great. Add this argument in eclipse.ini
-vm
/Library/Java/JavaVirtualMachines/jdk1.7.0_WHATEVERTHESUFFIXIS/Contents/Home/jre/lib/server/libjvm.dylib
Make sure that eclipse Is compiling your project to 1.7 specifications. Even though you have 1.7 selected as your virtual machine, it might be compiling to 1.6. It's in the eclipse project settings
This is the error message I get:
Cannot complete the install because one or more required items could not be found.
Software being installed: Google App Engine Tools for Android 3.1.0.v201208080121-rel-r42 (com.google.gdt.eclipse.mobile.android.feature.feature.group 3.1.0.v201208080121-rel-r42)
I've tried numerous things including manually downloading the file from here and also I snooped around StackOverflow and I tried just moving all the plugins from the manual download into the plugins folder of my Eclipse. That didn't help me though because my perspective did not update with the plugins and I couldn't find the "Create New Web Application" option. I've also read some things about the XML file being wrong but I can't find it and those were for other Eclipse versions so I don't know if it applies to me.
I also tried excluding Google App Engine Tools for Android 3.1.0 but then it just says the next one in the list can't be found.
I'll be more than happy to provide anymore information. I am running Eclipse Juno 4.2 and Java 1.7 (I also have 1.6 installed though). I am using a Windows 7 PC. Thank you guys so much! I just want to code :[
I did not work for me with this URL: http://dl.google.com/eclipse/plugin/4.2
It worked with this one: http://dl.google.com/eclipse/plugin/3.8
I just changed 4.2 to 3.8.
I faced a similar problem I was downloading with 120 kb/s every time the download breaks down
when I moved to another place and downloaded the plugin with highest speed 400 kb/s It successfully downloaded and no problems found
You might think that issue is out of logic but that what I reached so far
Hope that Helps
I know this is a very old question but recently I found a solution to my problem so I am going to personally update the answer. For some reason, Eclipse Classic 4.2.2 Juno does not come with some of the required packages. After talking to some people, they recommended simply downloading Eclipse IDE for Java EE Developers which simply comes with most of the packages necessary. From there, it just worked!
My friend also mentioned you could try to manually download the packages on Eclipse Classic but that is far more of a hassle.
Hope this helps!
I just created a .jsp file in my google app engine project. How to resolve the below error.
Description Resource Path Location Type
Your project must be configured to use a JDK in order to use JSPs
proj1.jsp
/Proj1/war Unknown Google App Engine Problem
Kindly let me know.
it is the error. In order to compile jsp you need a jdk installed in your system. If you are running on a JRE you will get this error. Also make sure that your project has been configured with a jdk in it's path.
For sake of improving answers
stack over flow reference
.jsp file not working for Google App Engine guestbook tutorial
the accepted answer was a year ago
updated answer from reference
In the end I seem to have wasted my bounty as I found the solution (with a little help) myself.
The problem arose because I was unfamiliar with Eclipse. When I found the more verbose error message Your project must be configured to use a JDK in order to use JSPs guestbook.jsp.
It was located in a tab called 'Markers' in pane found at the bottom of the Eclipse window.
It seems that Eclipse wasn't aware that I had installed the JDK.
In Eclipse I went to menu Window->Preferences->Java->Installed JREs . Eclipse had only one entry there named jre6 I clicked the Add... button Chose Standard VM and browsed to the base directory of the jdk (in my case C:\Program Files\Java\jdk1.6.0_20)
I rebuilt my project but the same error was there. I had forgotten to check the box that tells Eclipse to use the jdk instead of the jre.
As soon as I did that Eclipse rebuilt my project and the error was gone.
To solve this problem, first please confirm that JDK is already install on your computer. If it not available, go to Oracle JDK hompage to download and install it.
Then follow some steps to config JDK.
When JDK is configured, return eclipse and build project if you still get current error, I decide you are using JRE instead JDK. Choose Prefrences - Java - Install JRE - Un-check JRE and check JDK
Rebuild project
Hope this help!
Set JDK as your Installed JREs in Eclipse.
In Eclipse Window->Preference->Java->Installed JREs
Click on Add Button | Select VM ->Add JRE
Select Folder of jdk as "JRE Home" Directory.
Click OK.
Build your GAE Project
JFTR:
For those who use Ubuntu and OpenJDK, and may come here looking for help on the same issue: EVEN when it is called Open*JDK* (i.e. java-6-openjdk) actually you may have installed only the JRE part since they are on different packages, so you need to install also the JDK. For version 6 this is done via:
$ sudo apt-get install openjdk-6-jdk
Note that you may have yet an openjdk-6-jre in your system.
If your problem persist, you must sure that in your project use JDK library. Go to your project->click right->Build Path->Configure Build Path->Add library->JRE System Library->Select "Workspace default JRE (jdk1...)"->Finish, and in "Order and Export" UP your JDK Library above JRE Library. When you save your proyect it´s ok.