Problem configuring JPL on MacBook using Intellij

[Roberto Paul Malutan]

Hi,

I am Roberto and I am trying to use JPL on my MacBook (MacOS Sierra). I have installed SWI-Prolog, I have added jpl.jar as a dependency and I have set the path -Djava.library.path=/Applications/SWI-Prolog.app/Contents/swipl/lib/x86_64-darwin15.6.0,  the  directory where libswipl.dylib and libjpl.dyblib are present.

After doing all that I am getting always this error when trying to run any program (I am using Intellij as my IDE):

Exception in thread "main" java.lang.UnsatisfiedLinkError: /Applications/SWI-Prolog.app/Contents/swipl/lib/x86_64-darwin15.6.0/libjpl.dylib: dlopen(/Applications/SWI-Prolog.app/Contents/swipl/lib/x86_64-darwin15.6.0/libjpl.dylib, 1): Library not loaded: @executable_path/../swipl/lib/x86_64-darwin15.6.0/libswipl.dylib

  Referenced from: /Applications/SWI-Prolog.app/Contents/swipl/lib/x86_64-darwin15.6.0/libjpl.dylib

  Reason: image not found

at java.lang.ClassLoader$NativeLibrary.load(Native Method)

at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1938)

at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1854)

at java.lang.Runtime.loadLibrary0(Runtime.java:870)

at java.lang.System.loadLibrary(System.java:1122)

at org.jpl7.JPL.loadNativeLibrary(JPL.java:112)

at org.jpl7.fli.Prolog.<clinit>(Prolog.java:70)

at org.jpl7.Query.open(Query.java:300)

at org.jpl7.Util.textToTerm(Util.java:127)

at org.jpl7.Query.<init>(Query.java:185)

at MainJPL.main(MainJPL.java:7)

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:497)

at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)

 

Anyone knows what the solution to this might be?

Thank you.

[Jan Wielemaker]

On 02/04/2017 01:09 AM, Roberto Paul Malutan wrote:
> Hi,
> I am Roberto and I am trying to use JPL on my MacBook (MacOS Sierra). I
> have installed SWI-Prolog, I have added jpl.jar as a dependency and I
> have set the
> path -Djava.library.path=/Applications/SWI-Prolog.app/Contents/swipl/lib/x86_64-darwin15.6.0,
> the directory where libswipl.dylib and libjpl.dyblib are present.
> After doing all that I am getting always this error when trying to run
> any program (I am using Intellij as my IDE):
>
> Exception in thread "main" java.lang.UnsatisfiedLinkError:
> /Applications/SWI-Prolog.app/Contents/swipl/lib/x86_64-darwin15.6.0/libjpl.dylib:
> dlopen(/Applications/SWI-Prolog.app/Contents/swipl/lib/x86_64-darwin15.6.0/libjpl.dylib,
> 1): Library not loaded:
> @executable_path/../swipl/lib/x86_64-darwin15.6.0/libswipl.dylib
> Referenced from:

Problem is that libjpl.dylib finds libswipl.dylib relative to the
*executable* in
the application bundle. I'm not that deep into MacOS to know whether or
not there
is an (elegant) solution to this. The simplest is probably to use the
Macports or
Homebrew version that is not relocatable and shouldn't suffer from this
issue.

Cheers --- Jan


> /Applications/SWI-Prolog.app/Contents/swipl/lib/x86_64-darwin15.6.0/libjpl.dylib
> *Reason: image not found*

> at java.lang.ClassLoader$NativeLibrary.load(Native Method)
> at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1938)
> at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1854)
> at java.lang.Runtime.loadLibrary0(Runtime.java:870)
> at java.lang.System.loadLibrary(System.java:1122)
> at org.jpl7.JPL.loadNativeLibrary(JPL.java:112)
> at org.jpl7.fli.Prolog.<clinit>(Prolog.java:70)
> at org.jpl7.Query.open(Query.java:300)
> at org.jpl7.Util.textToTerm(Util.java:127)
> at org.jpl7.Query.<init>(Query.java:185)
> at MainJPL.main(MainJPL.java:7)
> 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:497)
> at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)
>
> Anyone knows what the solution to this might be?
>
> Thank you.
>

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