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lessthanoptimal / ExampleWebcamRPI

Example of using BoofCV on a Raspberry PI to scan for QR Codes from a webcam.
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SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder". #1

Open carol-fan opened 4 years ago

carol-fan commented 4 years ago

I have finished step2(./gradlew scanqrJar),and when I run step3( java -jar scanqr.jar) ,I got this error message.

SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder". SLF4J: Defaulting to no-operation (NOP) logger implementation SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details. Exception in thread "main" java.lang.NullPointerException at boofcv.io.webcamcapture.UtilWebcamCapture.adjustResolution(UtilWebcamCapture.java:88) at boofcv.io.webcamcapture.UtilWebcamCapture.openDefault(UtilWebcamCapture.java:42) at WebcamScanQR.main(WebcamScanQR.java:23)

lessthanoptimal commented 4 years ago

Can you post information on which hardware you're using and which OS you're running on that hardware?

carol-fan commented 4 years ago

Sorry for uncompleted info. Here are my device info: 1.HW----Raspberry Pi 4 2.OS----Linux 3.JDK----openjdk version "11.0.8" 2020-07-14

lessthanoptimal commented 4 years ago

I'll try to replicate in a few days when I have access to my RPI again thanks!