PIGPIO ERROR: PI_INIT_FAILED; pigpio initialisation failed

[SpamWall]

Hi,

I am new to Pi4J and I am trying my first project. I installed the raspimaven-archetype archetype in IntelliJ and created a skeleton project as described here: https://github.com/Pi4J/pi4j-maven-archetype. The code for that skeleton is below. I have a Raspberry Pi Zero W. The details of the installation are below.

When I run the Java application (as sudo) it loads to the Pi and starts fine. The "Console" output is displayed as expected. It runs to this line:
DigitalOutput led = pi4j.create(ledConfig);

where it throws this error: PIGPIO ERROR: PI_INIT_FAILED; pigpio initialisation failed

When I run the jar directly from the Pi command line I get identical results. The command line invocation is:
sudo java -Dpi4j.library.path=/home/pi/my_app/lib -cp classes:lib/'*' MyApp.Main

The full stack trace is:

java.lang.reflect.UndeclaredThrowableException
	at com.sun.proxy.$Proxy1.create(Unknown Source)
	at com.pi4j.context.Context.create(Context.java:317)
	at com.pi4j.internal.IOCreator.create(IOCreator.java:58)
	at com.pi4j.internal.IOCreator.create(IOCreator.java:96)
	at com.pi4j.internal.IOCreator.create(IOCreator.java:176)
	at com.griffonsoft.old_number_12.Main.run(Main.java:64)
	at com.griffonsoft.old_number_12.Main.main(Main.java:35)
Caused by: java.lang.reflect.InvocationTargetException
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at com.pi4j.provider.impl.ProviderProxyHandler.invoke(ProviderProxyHandler.java:100)
	... 7 more
Caused by: com.pi4j.library.pigpio.PiGpioException: PIGPIO ERROR: PI_INIT_FAILED; pigpio initialisation failed
	at com.pi4j.library.pigpio.impl.PiGpioBase.validateResult(PiGpioBase.java:263)
	at com.pi4j.library.pigpio.impl.PiGpioBase.validateResult(PiGpioBase.java:249)
	at com.pi4j.library.pigpio.impl.PiGpioNativeImpl.gpioInitialise(PiGpioNativeImpl.java:95)
	at com.pi4j.library.pigpio.PiGpio.initialize(PiGpio.java:146)
	at com.pi4j.plugin.pigpio.provider.gpio.digital.PiGpioDigitalOutputProviderImpl.create(PiGpioDigitalOutputProviderImpl.java:60)
	at com.pi4j.plugin.pigpio.provider.gpio.digital.PiGpioDigitalOutputProviderImpl.create(PiGpioDigitalOutputProviderImpl.java:41)
	... 12 more

I have been looking all day for a solution and have found nothing that works. Does anyone have any advice?

I installed on the Pi:
Java 11:

openjdk version "11.0.8" 2020-07-14 LTS
OpenJDK Runtime Environment Zulu11.41+75-CA (build 11.0.8+10-LTS)
OpenJDK Client VM Zulu11.41+75-CA (build 11.0.8+10-LTS, mixed mode)

WiringPi installed by these instructions: http://wiringpi.com/download-and-install/

gpio -v
gpio version: 2.50
Copyright (c) 2012-2018 Gordon Henderson
This is free software with ABSOLUTELY NO WARRANTY.
For details type: gpio -warranty

Raspberry Pi Details:
Type: Pi Zero-W, Revision: 01, Memory: 512MB, Maker: Sony

• Device tree is enabled.
  *--> Raspberry Pi Zero W Rev 1.1
• This Raspberry Pi supports user-level GPIO access.

PiGPIOd is running: (built from scratch from here: https://github.com/joan2937/pigpio)

ps -ef | grep pigpio
**root     14235     1  9 18:54 ?        00:05:11 pigpiod**
pi       14688   455  0 19:51 pts/0    00:00:00 grep --color=auto pigpio

I am building with these entries in the POM:
Pi4J V2.0:

 <maven.compiler.source>11</maven.compiler.source>
 <maven.compiler.target>11</maven.compiler.target>
 <jvmargs.run>-Dpi4j.library.path=[Path to the libpi4j-pigpio.so file]</jvmargs.run>

       <pi4j.version>2.0</pi4j.version>

       <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>
        <dependency>
            <groupId>com.pi4j</groupId>
            <artifactId>pi4j-library-pigpio</artifactId>
            <version>${pi4j.version}</version>
        </dependency>

Code:

package com.griffonsoft.old_number_12;

import com.pi4j.Pi4J;
import com.pi4j.context.Context;
import com.pi4j.io.gpio.digital.DigitalOutput;
import com.pi4j.io.gpio.digital.DigitalOutputConfigBuilder;
import com.pi4j.io.gpio.digital.DigitalState;
import com.pi4j.platform.Platforms;
import com.pi4j.util.Console;

import java.lang.reflect.InvocationTargetException;


public class Main {

    private static final int PIN_LED = 22; // PIN 15 = BCM 22
    private static final Console console = new Console();

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args)
    {
        console.box("Hello Rasbian world !");
        Context pi4j = null;
        try {
            pi4j = Pi4J.newAutoContext();
            new Main().run(pi4j);
        } catch (InvocationTargetException e) {
            console.println("Error: " + e.getTargetException().getMessage());
        } catch (Exception e) {
            console.println("Error: " + e.getMessage());
            e.printStackTrace();
        } finally {
            if (pi4j != null) {
                pi4j.shutdown();
            }
        }
    }

    private void run(Context pi4j) throws Exception {
        Platforms platforms = pi4j.platforms();

        console.box("Pi4J PLATFORMS");
        console.println();
        platforms.describe().print(System.out);
        console.println();

        DigitalOutputConfigBuilder ledConfig = DigitalOutput.newConfigBuilder(pi4j)
                .id("led")
                .name("LED Flasher")
                .address(PIN_LED)
                .shutdown(DigitalState.LOW)
                .initial(DigitalState.LOW)
                .provider("pigpio-digital-output");

        DigitalOutput led = pi4j.create(ledConfig);
        int counter = 0;
        while (counter < 50) {
            if (led.equals(DigitalState.HIGH)) {
                led.low();
                System.out.println("low");
            } else {
                led.high();
                System.out.println("high");
            }
            Thread.sleep(500);
            counter++;
        }
    }

}

[FDelporte]

not sure if this could be related to the maven archetype, so pinging @lburaggi and @Adito5393, but don't feel that's the problem...

I'm trying to dive into it...

[FDelporte]

@SpamWall would it be possible to upload the full project as zip?

[SpamWall]

Driver_Console.zip
@FDelporte Full IntelliJ project attached.

[SpamWall]

@FDelporte Any update on this error?

[savageautomate]

I wonder if this is because the PiGPIO daemon is running on your RPi.

• http://abyz.me.uk/rpi/pigpio/faq.html#Cant_initialise_pigpio_library

Check that it is running with the command

ps aux | grep pigpiod

Kill the daemon with

sudo killall pigpiod

By default, the Pi4J uses the PiGPIO library directly via C native interfaces. In this case the daemon should not be running.
Pi4J can use the PiGPIO daemon but some special environment variables or system properties need to be set to use it.
Let me know if you are interested in using the PiGPIO daemon and I can provide an example. The PiGPIO daemon will be slower and may not work in some cases for high speed I2C/SPI communication. Pi4J communicates to the PiGPIO daemon via TCP/IP.

Thanks, Robert

[harlanhu]

it works

[tscholze]

What worked for me was just to run the jar as root aka sudo java -jar ...

[SSNC-SushilBohaju]

does anyone find the solution?

[taartspi]

The discussion was use of sudo. It is still required that the provider pigpio requires sudo. There now are other providers that operate without using sudo. See: https://pi4j.com/documentation/providers/