Running Problem

[BYBDR]

Hi, Im new at pi4j v2, Im using pi 4b and netbeans when i try to compile always get same problem,
[AWT-EventQueue-0] INFO com.pi4j.Pi4J - New auto context [AWT-EventQueue-0] INFO com.pi4j.Pi4J - New context builder [AWT-EventQueue-0] INFO com.pi4j.platform.impl.DefaultRuntimePlatforms - adding platform to managed platform map [id=raspberrypi; name=RaspberryPi Platform; priority=5; class=com.pi4j.plugin.raspberrypi.platform.RaspberryPiPlatform] [AWT-EventQueue-0] ERROR com.pi4j.library.pigpio.util.NativeLibraryLoader - Unable to load [libpi4j-pigpio.so] using path: [/lib/armhf/libpi4j-pigpio.so] java.lang.UnsatisfiedLinkError: /tmp/libpi4j-pigpio5652675114124001500.so: libpigpio.so.1: cannot open shared object file: No such file or directory

is there solution to fix it ?

Thank you

[FDelporte]

Are you starting your application with sudo?

[BYBDR]

Hi, Thanks for your quick response,
Im try to run it at Netbeans so ı cant start it with sudo, i try all solutions for it but always stuck at 'libpi4j-pigpio.so' file

[FDelporte]

just to be sure, can you build it in netbeans (as jar) and start that one with sudo java -jar your-app.jarto check if the problem is fixed?

[BYBDR]

now the problem is different

[AWT-EventQueue-0] INFO com.pi4j.Pi4J - New auto context [AWT-EventQueue-0] INFO com.pi4j.Pi4J - New context builder [AWT-EventQueue-0] INFO com.pi4j.platform.impl.DefaultRuntimePlatforms - adding platform to managed platform map [id=raspberrypi; name=RaspberryPi Platform; priority=5; class=com.pi4j.plugin.raspberrypi.platform.RaspberryPiPlatform] [AWT-EventQueue-0] WARN com.pi4j.library.pigpio.impl.PiGpioNativeImpl - PIGPIO ERROR: PI_INIT_FAILED; pigpio initialisation failed Exception in thread "AWT-EventQueue-0" java.lang.reflect.UndeclaredThrowableException

I have pigpio "pigpio (1.79-1+rpt1)"

[FDelporte]

what dependencies do you have in your project?

[BYBDR]

Hi, Im just gonna use Gpio Output pins for relay control.

[BYBDR]

package pintest;

/**
 *
 * @author pi
 */
import com.pi4j.Pi4J;
import com.pi4j.io.gpio.digital.DigitalInput;
import com.pi4j.io.gpio.digital.DigitalOutput;
import com.pi4j.io.gpio.digital.DigitalState;
import com.pi4j.io.gpio.digital.PullResistance;
import com.pi4j.util.Console;

public class Pintest {

    /**
     * @param args the command line arguments
     */
    

    private static final int PIN_LED = 22; // PIN 15 = BCM 22

 
    public static void main(String[] args) throws InterruptedException {
        // TODO code application logic here
                var pi4j = Pi4J.newAutoContext();
          var ledConfig = DigitalOutput.newConfigBuilder(pi4j)
                .id("led")
                .name("LED Flasher")
                .address(PIN_LED)
                .shutdown(DigitalState.LOW)
                .initial(DigitalState.LOW)
                .provider("pigpio-digital-output");
        var led = pi4j.create(ledConfig);  
    led.high();
    Thread.sleep(1000);    
     led.low();
    }
    
}

Thats the code

[FDelporte]

And you have these dependencies included?

    <!-- include Pi4J Core -->
    <dependency>
        <groupId>com.pi4j</groupId>
        <artifactId>pi4j-core</artifactId>
        <version>${pi4j.version}</version>
    </dependency>

    <!-- include Pi4J Plugins (Platforms and I/O Providers) -->
    <dependency>
        <groupId>com.pi4j</groupId>
        <artifactId>pi4j-plugin-raspberrypi</artifactId>
        <version>${pi4j.version}</version>
    </dependency>
    <dependency>
        <groupId>com.pi4j</groupId>
        <artifactId>pi4j-plugin-pigpio</artifactId>
        <version>${pi4j.version}</version>
    </dependency>

[BYBDR]

SOrry for that question but where i have to add these dependencys ?

[FDelporte]

Are you using Maven or Gradle? See
https://pi4j.com/getting-started/minimal-example-application/

[BYBDR]

Are you using Maven or Gradle? See https://pi4j.com/getting-started/minimal-example-application/

Im using Gradle

[FDelporte]

Please take a look at this example:
https://github.com/Pi4J/pi4j-example-minimal/blob/main/build.gradle#L37