Cannot start Karel the Robot on Fedora - linux

So as stated in the title I want to start Karel the Robot on Fedora, I installed the openjdk package and tried everything I found without any success. I'm sadly a total beginner on Linux in general so please walk me through here if you know what to do.
Error is:
#fedora Downloads]$ java -jar karel.jar
Exception in thread "main" java.lang.UnsatisfiedLinkError: Can't load library: /usr/lib/jvm/java-11-openjdk-11.0.11.0.9-4.fc34.x86_64/lib/libawt_xawt.so
at java.base/java.lang.ClassLoader.loadLibrary(ClassLoader.java:2630)
at java.base/java.lang.Runtime.load0(Runtime.java:768)
at java.base/java.lang.System.load(System.java:1837)
at java.base/java.lang.ClassLoader$NativeLibrary.load0(Native Method)
at java.base/java.lang.ClassLoader$NativeLibrary.load(ClassLoader.java:2442)
at java.base/java.lang.ClassLoader$NativeLibrary.loadLibrary(ClassLoader.java:2498)
at java.base/java.lang.ClassLoader.loadLibrary0(ClassLoader.java:2694)
at java.base/java.lang.ClassLoader.loadLibrary(ClassLoader.java:2648)
at java.base/java.lang.Runtime.loadLibrary0(Runtime.java:830)
at java.base/java.lang.System.loadLibrary(System.java:1873)
at java.desktop/java.awt.Toolkit$3.run(Toolkit.java:1399)
at java.desktop/java.awt.Toolkit$3.run(Toolkit.java:1397)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at java.desktop/java.awt.Toolkit.loadLibraries(Toolkit.java:1396)
at java.desktop/java.awt.Toolkit.<clinit>(Toolkit.java:1429)
at java.desktop/java.awt.Font.<clinit>(Font.java:260)
at b.y.<clinit>(Unknown Source)
at MainKt.main(Unknown Source)

This fedora forum post seems to explain how to fix your issue

Fedora 34 example, with a contemporary version of karel, https://github.com/f7g/karel-release
$ git clone https://github.com/f7g/karel-release.git
$ cd karel-release/
$ java -jar karel.jar ## The karel GUI opens
No issues with the available jdk versions, openjdk version "1.8.0_292" or openjdk version "11.0.11+9" or openjdk version "16.0.1+9"

Related

Installing/compiling OpenFOAM on a server without admin privileges

I'm trying to install/compile OpenFOAM on a remote server. As I don't have the admin privileges I have to compile it from scratch. Following the instructions here, when I try to run
source ~/OpenFOAM/OpenFOAM-v1712/etc/bashrc
I get the error:
No completion added for /home/foobar/OpenFOAM/OpenFOAM-v1712/platforms/linux64GccDPInt32Opt/bin
I checked the ~/OpenFOAM/OpenFOAM-v1712/etc/bashrc definitely exists and it is intact. I also checked the /home/foobar/OpenFOAM/OpenFOAM-v1712/ folder and there are no such thing as platforms folder! I searched and the only place I could see a similar error message is here where the issue is old Bash. I tried bash --version returning version 4.3.48(1)-release (x86_64-pc-linux-gnu) which is more than 4.2 as seems to be required.
My system information:
When I run the uname -a command on the server this is what I get
Linux foobar 4.4.0-101-generic #124-Ubuntu SMP Fri Nov 10 18:29:59 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
Looking into the possible required dependencies mentioned in this page, I checked the installed packages using the command apt list --installed | grep -i packageName, The packages installed are:
build-essential, flex, bison, cmake, zlib1g-dev, libboost-system-dev, libboost-thread-dev, libopenmpi-dev, openmpi-bin, gnuplot, libreadline-dev, libqt4-dev, libqt4-opengl-dev, freeglut3-dev,
And the ones not installed are:
libncurses-dev, libxt-dev, libqtwebkit-dev, libcgal-dev
which according to the installation page are not essential I suppose.
and checking the versions of the libraries installed:
mpirun --version --> (Open MPI) 1.10.2
gcc --version --> gcc (Ubuntu 5.4.0-6ubuntu1~16.04.5) 5.4.0 20160609
cmake --version --> 3.5.1
I would appreciate if could let me know
What is the problem and how I can solve it?
if not solvable, what are the alternative methods for me to have the OpenFOAM installed/compiled on the said server.
This is really embracing as it was just a wrong error! I was informed here that I could have ignored the error and go forward with compiling. Of course I couldn't compile the ParaVIEW/paraFoam as dependencies lack, but it is just a headless server without any GUI. So if you got this error just ignore it and go forwards with the compiling with:
./Allwmake
I have reported the issue here so they can fix it.
P.S. I reported this issue almost 9 month ago and now there is a new confusing message instead of the old one!
No completion added for /home/foobar/OpenFOAM/OpenFOAM-v1806/platforms/linux64GccDPInt32Opt/bin
... incorrect platform, or not yet compiled?

AndroidStudio Crash on Ubuntu Linux

I am using Android Studio on Ubuntu 16.04 and it just keep crashing, sometimes it doesn't even starts completely and it crashes!
I ran the studio.sh file in the terminal and here is the info dump on the terminal, the last part is around the time when the Android Studio crashed.
Terminal Dump:
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=512m; support was removed in 8.0
WARN: Connection refused
java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at java.net.Socket.connect(Socket.java:538)
at java.net.Socket.<init>(Socket.java:434)
at java.net.Socket.<init>(Socket.java:244)
at com.intellij.idea.SocketLock.tryActivate(SocketLock.java:184)
at com.intellij.idea.SocketLock.access$300(SocketLock.java:50)
at com.intellij.idea.SocketLock$2.call(SocketLock.java:124)
at com.intellij.idea.SocketLock$2.call(SocketLock.java:113)
at com.intellij.idea.SocketLock.underLocks(SocketLock.java:157)
at com.intellij.idea.SocketLock.lock(SocketLock.java:113)
at com.intellij.idea.StartupUtil.lockSystemFolders(StartupUtil.java:263)
at com.intellij.idea.StartupUtil.prepareAndStart(StartupUtil.java:101)
at com.intellij.idea.MainImpl.start(MainImpl.java:34)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.intellij.ide.plugins.PluginManager$2.run(PluginManager.java:91)
at java.lang.Thread.run(Thread.java:745)
log4j:WARN No appenders could be found for logger (io.netty.util.internal.logging.InternalLoggerFactory).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
Looking in classpath from com.intellij.util.lang.UrlClassLoader#7a4f0f29 for /com/sun/jna/linux-x86-64/libjnidispatch.so
Found library resource at jar:file:/media/mohit/776b997b-f9a1-46c2-92a0-7f438c7b78e3/mohit/AndroidStudio/android-studio/lib/jna.jar!/com/sun/jna/linux-x86-64/libjnidispatch.so
Trying /home/mohit/.AndroidStudio2.1/system/tmp/jna-104073905/jna3415113200453289594.tmp
Found jnidispatch at /home/mohit/.AndroidStudio2.1/system/tmp/jna-104073905/jna3415113200453289594.tmp
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x00007fe367a2f587, pid=19294, tid=140614291318528
#
# JRE version: Java(TM) SE Runtime Environment (8.0_91-b14) (build 1.8.0_91-b14)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.91-b14 mixed mode linux-amd64 compressed oops)
# Problematic frame:
# V [libjvm.so+0xa27587] SymbolTable::unlink(int*, int*)+0x87
#
# Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#
# An error report file with more information is saved as:
# /home/mohit/java_error_in_STUDIO_19294.log
#
# If you would like to submit a bug report, please visit:
# http://bugreport.java.com/bugreport/crash.jsp
#
This just keeps happening a lot and I am completely unable to code anything.
I think you need to install these dependencies:
sudo apt-get install lib32z1 lib32ncurses5 lib32bz2-1.0 lib32stdc++6
mentioned here.
Try to take a look the permissions of files in the directory that you are installed Android Studio. Maybe you have a problem related with permissions.
SIGSEGV signal/error is a very generic error and it seems like a missing C library dependency.
On POSIX-compliant platforms, SIGSEGV is the signal sent to a process
when it makes an invalid memory reference, or segmentation fault.

Eclipse Fails to Load (Exit Code 13) on fresh Fedora 22 w/ latest OpenJDK

Alright, before you chop off my head, I've spent the last two days poking around the internet trying to find a solution, and I'm at my wit's end. Additionally, I can't seem to login to askFedora, so here I am.
So, having installed Eclipse through the terminal via
sudo dnf install eclipse
trying to run it returns the following error:
JVM terminated. Exit code=13
/usr/bin/java
-Xms128m
-Xmx1024m
-Dorg.eclipse.swt.browser.UseWebKitGTK=true
-Dhelp.lucene.tokenizer=standard
-XX:CompileCommand=exclude,org/eclipse/core/internal/dtree/DataTreeNode,forwardDeltaWith
-XX:CompileCommand=exclude,org/eclipse/jdt/internal/compiler/lookup/ParameterizedMethodBinding,<init>
-XX:CompileCommand=exclude,org/eclipse/cdt/internal/core/dom/parser/cpp/semantics/CPPTemplates,instantiateTemplate
-XX:CompileCommand=exclude,org/eclipse/cdt/internal/core/pdom/dom/cpp/PDOMCPPLinkage,addBinding
-XX:CompileCommand=exclude,org/python/pydev/editor/codecompletion/revisited/PythonPathHelper,isValidSourceFile
-XX:CompileCommand=exclude,org/eclipse/tycho/core/osgitools/EquinoxResolver,newState
-Dorg.eclipse.equinox.p2.reconciler.dropins.directory=/usr/share/eclipse/dropins
-Declipse.p2.skipMovedInstallDetection=true
-jar /usr/lib64/eclipse//plugins/org.eclipse.equinox.launcher_1.3.0.v20150513-1800.jar
-os linux
-ws gtk
-arch x86_64
-showsplash /usr/lib64/eclipse//plugins/org.eclipse.platform_4.4.2.v20150513-1759/splash.bmp
-launcher /usr/lib64/eclipse/eclipse
-name Eclipse
--launcher.library /usr/lib64/eclipse//plugins/org.eclipse.equinox.launcher.gtk.linux.x86_64_1.1.200.v20150513-1800/eclipse_1608.so
-startup /usr/lib64/eclipse//plugins/org.eclipse.equinox.launcher_1.3.0.v20150513-1800.jar
--launcher.appendVmargs
-exitdata d60001
-protect master
-vm /usr/bin/java
-vmargs
-Xms128m
-Xmx1024m
-Dorg.eclipse.swt.browser.UseWebKitGTK=true
-Dhelp.lucene.tokenizer=standard
-XX:CompileCommand=exclude,org/eclipse/core/internal/dtree/DataTreeNode,forwardDeltaWith
-XX:CompileCommand=exclude,org/eclipse/jdt/internal/compiler/lookup/ParameterizedMethodBinding,<init>
-XX:CompileCommand=exclude,org/eclipse/cdt/internal/core/dom/parser/cpp/semantics/CPPTemplates,instantiateTemplate
-XX:CompileCommand=exclude,org/eclipse/cdt/internal/core/pdom/dom/cpp/PDOMCPPLinkage,addBinding
-XX:CompileCommand=exclude,org/python/pydev/editor/codecompletion/revisited/PythonPathHelper,isValidSourceFile
-XX:CompileCommand=exclude,org/eclipse/tycho/core/osgitools/EquinoxResolver,newState
-Dorg.eclipse.equinox.p2.reconciler.dropins.directory=/usr/share/eclipse/dropins
-Declipse.p2.skipMovedInstallDetection=true
-jar /usr/lib64/eclipse//plugins/org.eclipse.equinox.launcher_1.3.0.v20150513-1800.jar
I understand this to indicate there's a problem with the way I have eclipse.ini configured; specifically, what JVM I have it pointing to. whereis java returns /usr/bin/java, and in /etc/eclipse.ini I have the following two lines:
-vm
/usr/bin/java
java -version meanwhile returns
openjdk version "1.8.0_45"
OpenJDK Runtime Environment (build 1.8.0_45-b13)
OpenJDK Server VM (build 25.45-b02, mixed mode)
which, if I'm not mistaken, indicates that I have the latest OpenJDK Runtime Environment installed.
So, I'm stumped. Any ideas?
The problem - and the solution - are explained here:
Cannot run Eclipse; JVM terminated. Exit code=13
Please run whereis java and ls -l /usr/bin/java.
If you happen to have multiple JDKs, you should also consider
alternatives.
For example, run alternatives --display java.
NOTE:
The -vm option and its value (the path) must be on separate lines.
==================== ADDENDUM ====================
Make sure your JDK and Eclipse are either BOTH 32-bit, or BOTH
64-bit.
Here are the details from my system:
alternatives --display java
java - status is auto.
link currently points to /usr/lib/jvm/java-1.7.0-openjdk-1.7.0.65-2.5.1.2.el7_0.x86_64/jre/bin/java
...
cd /opt/eclipse;file eclipse
eclipse: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.4.0, not stripped
cat cat eclipse.ini
-startup
plugins/org.eclipse.equinox.launcher_1.3.0.v20140415-2008.jar
--launcher.library
plugins/org.eclipse.equinox.launcher.gtk.linux.x86_64_1.1.200.v20140603-1326
-product
org.eclipse.epp.package.jee.product
--launcher.defaultAction
openFile
-showsplash
org.eclipse.platform
--launcher.XXMaxPermSize
256m
--launcher.defaultAction
openFile
--launcher.appendVmargs
-vmargs
-Dosgi.requiredJavaVersion=1.6
-XX:MaxPermSize=256m
-Xms40m
-Xmx512m
At this point, I would strongly encourage you to either run eclipse
-clean or (better!) delete and re-install Eclipse. Make no changes to the default eclipse.ini, until you get it working.
I hope that helps!
I came here to locate the same answer and eventually found this JIRA about this exact problem and removing the lines form the ini file worked:
https://issues.jboss.org/browse/JBDS-3450

Debugging Helpers in Qtcreator don't work on Linux

and sorry for mess English.
In theory while debugging in qt-creator show fields of classes defined in Qt.
But it doesn't do it and display only or mem address.
I think that the problem in GDB or Python scripts.
GDB loaded from http://origin.releases.qt-project.org/gdb/ gives what is described above.
I tried to Build GDB myself with config flags
configure --prefix=<DIR> --target x86_64-linux-gnu --with-python
and
configure --target x86_64-linux-gnu --disable-nls --with-libiconv --with-expat --with-python
but they crash while starting from Qtcreator
i'm running on Ubuntu 12.10 x64
Qt version is 4.8.4 (from Git)
and creators are 2.5.2(from qt-project site) and 2.6.81 (git)
GDB versions:
build myself - 7.5
download from qt-project - 7.4.1
on Win8 subject works fine in combination QtCreator(2.6.81)-Qt-4.8.4-MinGW-GDB-7.5(build myself from source with Py. support)
UPD: Try to build with http://qt.gitorious.org/qt-creator/qt-creator/trees/master/dist/gdb
it didn’t help
SOLUTION: Qt libs didn't contain debug simbols. I was caught by flag -debug-and-release. It work in macOS and windows (MinGW) but not in Linux. Be careful!
Are you sure the version of Qt you use has been built with debug symbols? What does readelf -S /path/to/your/libQtCore.so say?

Griffon JavaFX sample app can't compile

I can't run the sample app from aalmiray's blog "The Griffon Trove: dialogs and JavaFX".
[griffonc] Compiling 1 source file to
C:\Users\foo.griffon\1.0.1\projects\sample\classes\main Compilation
error: BUG! exception in phase 'semantic analysis' in source unit
'C:\Users\foo\sample\griffon-app\views\sample\DialogView.groovy'
Invalid index
Commenting the import javafx.geometry.Insets helps by compiling.
Groovy Version: 1.8.5 JVM: 1.6.0_24 Vendor: Sun Microsystems Inc.
OS: Windows 7 x64
Griffon Version: 1.0.1
JavaFX Version: 2.1 Runtime
Link is here.
It looks to me you're being affected by http://jira.codehaus.org/browse/GRIFFON-517. If this is the case then please make sure you're running latest versions of the JavaFX and GroovyFX plugins. You can quickly check if a plugin requires updates by invoking griffon list-plugin-updates.
You can also check http://artifacts.griffon-framework.org for updates.

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