I am using the monodevelop Java plugin to compile a simple (hello world) Java project. The project is created fine, but when I try to build it I get the following error:
"Error: invalid path: *.class"
The command that triggers the error is as follows:
ikvmc -recurse:*.class -assembly:jTest -target:exe -debug -srcpath:/home/bob/src/jTest/jTest -r:mscorlib
Any idea what's going wrong, and how to fix this?
P.s. Please do not say "Mono is not for Java. Use (insert different Java IDE here) instead"
Thank you!
I think .\*.class sould be run better. There must at minimum one slash in the path.
Related
Our application is a RoR app, and currently uses JRuby version 1.7.22, and JRE 8_65. Our app is an on-prem solution, so we use JRuby to host our application on JVM at the target, Windows Server 2012 R2 system. We compile our ruby code, using
jruby -S jrubyc
This takes the .rb file and compiles it to a .class file. In the original .rb, it loads in the class file, like so.
load __FILE__.sub(/\.rb$/, ".class")
This all works with JRuby 1.7.22
Now, we want to update JRuby to 9.0.5.0, but are experiencing some problems when it comes to deploying our application. Basically, that line of code above inside of the .rb file is not working anymore, and we get the error when trying to run a rake db:setup
rake aborted!
LoadError: C:/appname/app/models/app_attribute.class is not compiled Ruby; use java_import to load normal classes
C:/appname/app/models/app_attribute.rb:1:in `<top>'
C:/appname/db/seeds.rb:10:in `<top>'
C:/appname/db/seeds.rb:9:in `block in (root)'
Tasks: TOP => db:setup => db:seed
(See full trace by running task with --trace)
Great. So I replace load with java_import
rake aborted!
ArgumentError: not a valid Java identifier: C:/appname/app/models/app_attribute.class
uri:classloader:/jruby/java/core_ext/object.rb:43:in `block in java_import'
uri:classloader:/jruby/java/core_ext/object.rb:34:in `java_import'
C:/appname/app/models/app_attribute.rb:1:in `<top>'
C:/appname/db/seeds.rb:10:in `<top>'
C:/appname/db/seeds.rb:9:in `block in (root)'
Tasks: TOP => db:setup => db:seed
(See full trace by running task with --trace)
Still not working, no matter what I try. I looked at this post: https://github.com/jruby/jruby/issues/3018
I tried to pass the parameter
jruby -Xaot.loadClasses=true
But I get a warning saying that aot.LoadClasses is not recognized. EVEN THOUGH I see it in the properties when I type
jruby -Xproperties
I have done A LOT of research on this, and have probably have looked at everything on the internet regarding this. Any input will be greatly appreciated. Is there something I missing? I am not fully adept in Java.
Thank you.
might be the same issue as https://github.com/jruby/jruby/issues/3651
which means you'll need to wait for 9.1 or use a snapshot http://ci.jruby.org/
since, the error is slightly different you should look into reproducing with snapshot and if it fails (might be Windows related) a step-by-step reproduction might speed-up getting the issue resolved.
jruby -Xaot.loadClasses=true
this is not needed with Warbler
But I get a warning saying that aot.LoadClasses is not recognized. EVEN THOUGH I see it in the properties when I type
hmm, could you reproduce this with an empty script and no JRUBY_OPTS ?
I have done A LOT of research on this, and have probably have looked at everything on the internet regarding this. Any input will be greatly appreciated.
you might want to try looking into the issue next time :) or considering getting some support
Is there something I missing? I am not fully adept in Java.
you shouldn't be missing anything - its not a Java issue ...
I am running maxent from R, in the package biomod2 and the following error appeared. I do not come from a technical background and wasn't sure why is this error happening. Is it a memory problem or someone said the java path is not set. But I followed the instructions to set maxent to run in R and also downloaded Java Platform, Standard Edition Development Kit and set a path for it as explained in this pdf: http://modata.ceoe.udel.edu/dev/dhaulsee/class_rcode/r_pkgmanuals/MAXENT4R_directions.pdf
I would be really grateful if you could help me understand this problem and any solution to it.
Thanks a lot
Error in file(file, "rt") : cannot open the connection
In addition: Warning messages:
1: running command 'java' had status 1
2: running command 'java -mx512m -jar E:\bioclim_2.5min\model/maxent.jar environmentallayers
="rainfed/models/1432733200/m_47203134/Back_swd.csv"
samplesfile="rainfed/models/1432733200/m_47203134/Sp_swd.csv"
projectionlayers="rainfed/models/1432733200/m_47203134/Predictions/Pred_swd.csv"
outputdirectory="rainfed/models/1432733200/rainfed_PA1_Full_MAXENT_outputs"
outputformat=logistic redoifexists visible=FALSE linear=TRUE quadratic=TRUE
product=TRUE threshold=TRUE hinge=TRUE lq2lqptthreshold=80 l2lqthreshold=10
hingethreshold=15 beta_threshold=-1 beta_categorical=-1 beta_lqp=-1
beta_hinge=-1 defaultprevalence=0.5 autorun nowarnings notooltips
noaddsamplestobackground' had status 1
3: In file(file, "rt") :
cannot open file 'rainfed/models/1432733200/rainfed_PA1_Full_MAXENT_outputs/rainfed_PA1_
Full_Pred_swd.csv': No such file or directory
I've just manage to solve this problem - it is a problem with the file path specified. For me, I had a space in one of the folder names which was not accepted in the path to the maxent.jar file. From looking at your error, it looks like it might be the two backslashes.
E:\bioclim_2.5min\model/maxent.jar
should probably read
E:/bioclim_2.5min/model/maxent.jar
I am continuing to have trouble with the import.bat file for the Neo4j batch importer. I started a new thread as the original problem was resolved.
from the command prompt I run
import.bat test.db sample\nodes.csv sample\rels.csv
With some variations on the path listing for the files, including absolute paths. I continue to get the following error message
The system cannot find the path specified.
Error: Could not find or load main class org.neo4j.batchimport.Importer
I also tried running import.sh from Cygwin and in my Debian VM but keep getting the error
Error: Could not find or load main class org.neo4j.batchimport.Importer
What am I doing wrong?
Please download the zip-file, not the github clone.
This is a pre-build binary as outlined in the readme, that doesn't require that you have to have maven installed to build it.
Bear with me - this is a long description, but I wanted to include all details. I'm trying use android NDK and JNI for building OpenCV Android apps.
I'm following this tutorial to get everything installed:
http://www.stanford.edu/class/ee368/Android/Tutorial-2-OpenCV-for-Android-Setup-Macintosh-API8.pdf
The following installed just fine:
/usr/bin/g++
/usr/local/bin/swig
/usr/bin/cmake
/usr/bin/make
/Developer/pcre-8.32/
Contents of my .bashrc file:
export NDK=/Users/Me/Code/Android/android-ndk-r4-crystax
export SDK=/Users/Me/Code/Android/adt-bundle-mac-x86_64-20130219/
export OPCV=/Users/Me/Code/OpenCV/opencv
export PATH=$NDK:$SDK/tools:$SDK/platform-tools:$PATH
export NDK_ROOT=$NDK
Making OpenCV libraries went just fine.
Due to complaint in using make, I had to make a small edit in /Users/Me/Code/OpenCV/opencv/android/android-jni/local.env.mk which looked like so:
#ANDROID_NDK_ROOT=$(HOME)/android-ndk-r4-crystax
ANDROID_NDK_ROOT=/Users/Me/Code/Android/android-ndk-r4-crystax
Then upon trying again to make in the android-jni, directory, disaster struck:
/Users/Me/Code/Android/android-ndk-r4-crystax/ndk-build OPENCV_CONFIG=../build/android-opencv.mk \
PROJECT_PATH= ARM_TARGETS="armeabi armeabi-v7a" V=
Gdbserver : [arm-eabi-4.4.0] /Users/Me/Code/OpenCV/opencv/android/android-jni/libs/armeabi/gdbserver
Gdbsetup : /Users/Me/Code/OpenCV/opencv/android/android-jni/libs/armeabi/gdb.setup
Gdbsetup : + source directory /Users/Me/Code/OpenCV/opencv/android/android-jni/jni
Gdbserver : [arm-eabi-4.4.0] /Users/Me/Code/OpenCV/opencv/android/android-jni/libs/armeabi-v7a/gdbserver
Gdbsetup : /Users/Me/Code/OpenCV/opencv/android/android-jni/libs/armeabi-v7a/gdb.setup
Gdbsetup : + source directory /Users/Me/Code/OpenCV/opencv/android/android-jni/jni
SharedLibrary : libandroid-opencv.so
/Users/Me/Code/Android/android-ndk-r4-crystax/build/prebuilt/darwin-x86/arm-eabi-4.4.0/bin/../lib/gcc/arm-eabi/4.4.0/../../../../arm-eabi/bin/ld: cannot find -lopencv_calib3d
collect2: ld returned 1 exit status
make[1]: *** [/Users/Me/Code/OpenCV/opencv/android/android-jni/obj/local/armeabi/libandroid-opencv.so] Error 1
make: *** [libs/armeabi-v7a/libandroid-opencv.so] Error 2
I thought perhaps this was a pkg-config error, but that appears to be set up as well, though in my old install of OpenCV. Below is the output of pkg-config --cflags --libs opencv:
-I/usr/include/opencv /usr/lib/libopencv_calib3d.dylib /usr/lib/libopencv_contrib.dylib /usr/lib/libopencv_core.dylib /usr/lib/libopencv_features2d.dylib /usr/lib/libopencv_flann.dylib /usr/lib/libopencv_gpu.dylib /usr/lib/libopencv_highgui.dylib /usr/lib/libopencv_imgproc.dylib /usr/lib/libopencv_legacy.dylib /usr/lib/libopencv_ml.dylib /usr/lib/libopencv_nonfree.dylib /usr/lib/libopencv_objdetect.dylib /usr/lib/libopencv_photo.dylib /usr/lib/libopencv_stitching.dylib /usr/lib/libopencv_ts.dylib /usr/lib/libopencv_video.dylib /usr/lib/libopencv_videostab.dylib
The install built by this particular tutorial has placed an opencv.pc file at this location:
/Users/Me/Code/OpenCV/opencv/build/unix-install
BUT Running the below and trying make again doesn't fix the problem:
export PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/Users/Me/Code/OpenCV/opencv/build/unix-install
I can't figure out what is wrong. I've been battling with this problem for about a month on and off, and finally needed some outside opinions. Any ideas?
Error message says
cannot find -lopencv_calib3d collect2: ld returned 1 exit status
It means linker can't find opencv_calib3d library. It may have name libopencv_calib3d.a or libopencv_calib3d.so. So you need find one of them and add path to this file to your LD_LIBRARY_PATH env variable.
I mean if let's say folder /Users/Me/Code/OpenCV/opencv/lib contains libopencv_calib3d.so then you need execute something like following before make:
export LD_LIBRARY_PATH=/Users/Me/Code/OpenCV/opencv/lib:$LD_LIBRARY_PATH
Try the official OpenCV4Android tutorials at http://docs.opencv.org/trunk/doc/tutorials/introduction/android_binary_package/android_dev_intro.html
I'm trying to call a java program from python using command line. The code is as follows:
subprocess.check_output(["java", "pitt.search.semanticvectors.CompareTerms", "-queryvectorfile","termvectors.bin","term1","term2"])
I get the following error:
Error: Could not find or load main class pitt.search.semanticvectors.CompareTerms
This happens when I run the program from PyDev (version 2.5 in Eclipse 3.7.2). However, if I run the same code from the terminal, it works and I get the result I want.
I'm almost sure that the problem is related with some configuration of PyDev and how it handles the java CLASSPATH, which is:
/Users/feralvam/Programas/semanticvectors-3.4/semanticvectors-3.4.jar:/Users/feralvam/Programas/lucene-3.5.0/lucene-core-3.5.0.jar:/Users/feralvam/Programas/lucene-3.5.0/contrib/demo/lucene-demo-3.5.0.jar:
The class "pitt.search.semanticvectors.CompareTerms" is in "semanticvectors-3.4.jar".
Any help you could give me would be really appreciated.
Thanks!
The solution proposed by #eis worked. Now, the command is:
subprocess.check_output(["java", "-classpath", "/Users/feralvam/Programas/semanticvectors-3.4/semanticvectors-3.4.jar:/Users/feralvam/Programas/lucene-3.5.0/lucene-core-3.5.0.jar:/Users/feralvam/Programas/lucene-3.5.0/contrib/demo/lucene-demo-3.5.0.jar:", "pitt.search.semanticvectors.CompareTerms", "-queryvectorfile","/Users/feralvam/termvectors.bin","term1","term2"])