CODEWITHSUNDEEP
javajpl
Ido Barash
Ido Barash

Reputation: 5132

jpl.PrologException: existence_error

I am trying to understand how to use JPL. For this purpose I copied one of it's tests from the doc section (swipl\doc\packages\examples\jpl\java\Time) to eclipse and tried to run it.

If I double click the batch file, all runs well. If I run the Time class using eclipse I get 

Exception in thread "main" jpl.PrologException: PrologException: error(existence_error(source_sink, 'time.pl'), _0)

I created a simple java project. Copied Time.java and time.pl to the root. Also I created the needed Path variables and connected the jpl.jar to the project.

JPL.init() works. I fail on the if statement of this part:

static void test_0() {

        Query query = new Query("consult('time.pl')");

        if (!query.hasSolution()) {

Upvotes: 1

Views: 2098

Answers (1)

Ido Barash
Ido Barash

Reputation: 5132

The path to the prolog file should have the suffix of src/

Query query = new Query("consult('src/time.pl')");

Upvotes: 1

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