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问题[scilab](ubuntu)

Martin Hope
N0rbert
Asked: 2020-07-19 07:34:17 +0800 CST
  • 3

我已经安装了干净的 Ubuntu MATE 20.04 LTS 并从这里的存储库安装了 Scilab

sudo apt-get update
sudo apt-get install scilab

安装后，我尝试从 GUI 启动它（应用程序 → 其他 → Scilab） - 它没有启动。
然后我尝试使用scilab命令从终端启动它。终端输出如下：

$ scilab
...
Scilab cannot create Scilab Java Main-Class (we have not been able to find the main Scilab class. Check if the Scilab and thirdparty packages are available).

所以它再也找不到Java了。我报告了关于这个问题的错误 1870813 。但像往常一样，包维护者没有反应。

我应该怎么做才能让 Scilab 6.1.0 在 Ubuntu 20.04 LTS 上运行？

package-management apt java scilab 20.04
Martin Hope
N0rbert
Asked: 2020-02-19 03:18:58 +0800 CST
  • 2

我刚刚结束了 Ubuntu 16.04 LTS 的全新安装。我在这里从官方存储库安装了 Scilab，就像sudo apt-get install scilab.

然后我尝试从 GUI 启动它，但它没有启动。从终端运行scilab会得到以下输出：

$ scilab
Could not access to the Main Scilab Class:
Exception in thread "main" java.lang.ExceptionInInitializerError
    at org.scilab.modules.localization.Messages.gettext(Unknown Source)
    at org.scilab.modules.commons.xml.XConfiguration.<clinit>(Unknown Source)
    at org.scilab.modules.core.Scilab.<clinit>(Unknown Source)
Caused by: java.lang.NullPointerException
    at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1847)
    at java.lang.Runtime.loadLibrary0(Runtime.java:871)
    at java.lang.System.loadLibrary(System.java:1124)
    at org.scilab.modules.localization.MessagesJNI.<clinit>(Unknown Source)
    ... 3 more

Scilab cannot create Scilab Java Main-Class (we have not been able to find the main Scilab class. Check if the Scilab and thirdparty packages are available).

所以它与 Java 和 OpenJDK 有问题。我的系统中只有一个 Java：

$ update-java-alternatives -l
java-1.8.0-openjdk-amd64       1081       /usr/lib/jvm/java-1.8.0-openjdk-amd64

如何解决 Scilab start 的问题？

software-installation jdk openjdk 16.04 scilab
Martin Hope
N0rbert
Asked: 2018-10-20 04:34:40 +0800 CST
  • 3

我已经安装了干净的 Ubuntu MATE 18.10 并从这里的存储库安装了 Scilab

sudo apt-get update
sudo apt-get install scilab

安装后，我尝试从 GUI 启动它（应用程序 → 其他 → Scilab） - 它没有启动。
然后我尝试使用scilab命令从终端启动它。终端输出如下：

$ 科学实验室
拿起_JAVA_OPTIONS：-Djava.class.path=/usr/share/java/flexdock.jar:/usr/share/java/skinlf.jar:/usr/share/java/looks.jar:/usr/share/java /commons-logging.jar:/usr/share/java/jhall.jar:/usr/share/java/lucene-core-4.10.4.jar:/usr/share/java/lucene-analyzers-common-4.10。 4.jar:/usr/share/java/lucene-queryparser-4.10.4.jar:/usr/share/maven-repo/org/freehep/freehep-util/debian/freehep-util-debian.jar:/usr /share/maven-repo/org/freehep/freehep-io/debian/freehep-io-debian.jar:/usr/share/maven-repo/org/freehep/freehep-graphicsio/debian/freehep-graphicsio-debian。 jar:/usr/share/java/freehep-graphicsio-emf-2.1.jar:/usr/share/java/freehep-graphics2d-2.1.1.jar:/usr/share/java/jrosetta-API.jar:/ usr/share/java/jrosetta-engine-1.0.4.jar:/usr/share/java/jgraphx.jar:/usr/share/java/jogl2.jar:/usr/share/java/gluegen2-rt.jar ：/usr/share/java/jeuclid-core.jar：/usr/share/java/jlatexmath-fop-1.0.7.jar:/usr/share/java/fop.jar:/usr/share/java/saxon.jar:/usr/share/java/batik.jar: /usr/share/java/xml-apis-ext.jar:/usr/share/java/commons-io.jar:/usr/share/java/xmlgraphics-commons.jar:/usr/share/java/avalon- framework.jar:/usr/share/java/jlatexmath-1.0.7.jar:/usr/share/java/ecj.jar:/usr/share/scilab/modules/helptools/jar/org.scilab.modules.helptools .jar:/usr/share/scilab/modules/helptools/jar/scilab_ru_RU_help.jar:/usr/share/scilab/modules/helptools/jar/scilab_images.jar:/usr/share/scilab/modules/helptools/jar/ scilab_en_US_help.jar:/usr/share/scilab/modules/graphic_objects/jar/org.scilab.modules.graphic_objects.jar:/usr/share/scilab/modules/renderer/jar/org.scilab.modules.renderer.jar: /usr/share/scilab/modules/scinotes/jar/org.scilab.modules.scinotes.jar:/usr/share/scilab/modules/localization/jar/org.scilab。modules.localization.jar:/usr/share/scilab/modules/graph/jar/org.scilab.modules.graph.jar:/usr/share/scilab/modules/jvm/jar/org.scilab.modules.jvm。 jar:/usr/share/scilab/modules/preferences/jar/org.scilab.modules.preferences.jar:/usr/share/scilab/modules/scilaber/jar/scilab/modules /gui/jar/org.scilab.modules.gui.jar:/usr/share/scilab/modules/graphic_export/jar/org.scilab.modules.graphic_export.jar:/usr/share/scilab/modules/action_binding/jar /org.scilab.modules.action_binding.jar:/usr/share/scilab/modules/xcos/jar/org.scilab.modules.xcos.jar:/usr/share/scilab/modules/ui_data/jar/org.scilab .modules.ui_data.jar:/usr/share/scilab/modules/types/jar/org.scilab.modules.types.jar:/usr/share/scilab/modules/history_manager/jar/org.scilab.modules.history_manager .jar:/usr/share/scilab/modules/external_objects_java/jar/org.scilab。modules.external_objects_java.jar:/usr/share/scilab/modules/console/jar/org.scilab.modules.console.jar:/usr/share/scilab/modules/history_browser/jar/org.scilab.modules.history_browser。 jar:/usr/share/scilab/modules/javasci/jar/org.scilab.modules.javasci.jar:/usr/share/scilab/modules/completion/jar/org.scilab.modules.completion.jar:/usr /share/scilab/modules/commons/jar/org.scilab.modules.commons.jar:/usr/share/scilab/modules/core/jar/org.scilab.modules.core.jar:--add-modules= java.activation,java.xml.bind/usr/share/scilab/modules/commons/jar/org.scilab.modules.commons.jar:/usr/share/scilab/modules/core/jar/org.scilab.modules.core.jar:--add-模块=java.activation,java.xml.bind/usr/share/scilab/modules/commons/jar/org.scilab.modules.commons.jar:/usr/share/scilab/modules/core/jar/org.scilab.modules.core.jar:--add-模块=java.activation,java.xml.bind
启动层初始化时出错
java.lang.module.FindException: Module java.xml.bind not found

所以我向 LaunchPad 报告了错误 1798661。

看来我需要java.xml.bind从某个包中获取。
根据在 packages.ubuntu.com 上的搜索，我需要安装openjdk-11-jdk-headless包，但它在 Ubuntu 18.10 Cosmic 中没有需要的文件。

注意：我不想从 Scilab 网站下载和提取二进制存档（但这是一种解决方法）。我需要使用 APT 的 deb-packages 解决方案。

我还应该尝试什么？

java openjdk scilab 18.10
Martin Hope
leo valdez
Asked: 2018-07-08 03:10:44 +0800 CST
  • 2

Scilab 6 在 Ubuntu 18.04 上似乎有一些错误，所以我想尝试运行 5.5.2。我从 Scilab 网站下载了二进制文件。当我尝试./scilab在bin文件夹中运行时，它给出了一个名为libEGL许可证的身份验证问题：

$ ./scilab
libEGL warning: DRI2: failed to authenticate
Segmentation fault (core dumped)

有什么解决办法吗？

software-installation 18.04 scilab
Martin Hope
N0rbert
Asked: 2018-04-29 02:50:06 +0800 CST
  • 9

我已经安装了干净的 Ubuntu MATE 18.04 LTS 并从这里的存储库安装了 Scilab

sudo apt-get update
sudo apt-get install scilab

安装后，我尝试从 GUI 启动它（应用程序 → 其他 → Scilab） - 它没有启动。
然后我尝试使用scilab命令从终端启动它。终端输出如下：

$ scilab
/usr/bin/scilab-bin: error while loading shared libraries: libjava.so: cannot open shared object file: No such file or directory

所以它找不到Java。我报告了关于这个问题的错误 1762999 。

我检查了是否存在libjava.so：

$ dpkg -S libjava.so  
openjdk-11-jre-headless:amd64: /usr/lib/jvm/java-11-openjdk-amd64/lib/libjava.so

所以它就位。

我应该怎么做才能让 Scilab 6.0.1 在 Ubuntu 18.04 LTS 上运行？

package-management apt java openjdk scilab
Martin Hope
N0rbert
Asked: 2018-02-05 02:25:48 +0800 CST
  • 0

在我的 Ubuntu 17.10 系统上，我从官方网站下载了 Scilab 6.0.0，将其解压缩并尝试启动：

wget http://www.scilab.org/download/6.0.0/scilab-6.0.0.bin.linux-x86_64.tar.gz
tar -xzf scilab-6.0.0.bin.linux-x86_64.tar.gz
cd scilab-6.0.0
bin/scilab

但它不会启动：

$ bin/scilab
Cannot find this look and feel:
[GTK look and feel - com.sun.java.swing.plaf.gtk.GTKLookAndFeel] not supported on this platform
Segmentation fault (core dumped)

如果我尝试手动指定后备 Motif 外观和感觉，我会再次崩溃：

$ _JAVA_OPTIONS='-Dswing.installedlafs=com.sun.java.swing.plaf.motif.MotifLookAndFeel' \
bin/scilab
Picked up _JAVA_OPTIONS: -Dswing.installedlafs=com.sun.java.swing.plaf.motif.MotifLookAndFeel
Segmentation fault (core dumped)

它在 Xorg 和 Wayland 上都崩溃了。
我还应该尝试什么让它工作？

java scilab