Yawcam should work with java 1.8, and do so for most users.
One of the very first step is of course to check your webcam connection.
Most webcams use the USB port to connect to the PC, so check if your USB cable is properly plugged.
java -version With a bit of fiddling I can get it to run though , by - Open a cmd windows , navigate to C:\Program Files\Yawcam- Then run the contents of 'launcher.cfg'i.e.
-cp .;lib/activation.jar;lib/commons-jxpath-1.1.jar;lib/commons-logging.jar;lib/commons-logging-api.jar;lib/dsj.jar;lib/jmf.jar;lib/mail.jar;lib/mx4j-impl.jar;lib/mx4j-jmx.jar;lib/mx4j-remote.jar;lib/mx4j-tools.jar;lib/sbbi-jmx-1.0.jar;lib/sbbi-upnplib-1.0.4.jar;lib/ftp4j.jar;lib/commons-codec-1.4prefer IPv4Stack=true -splash:img/yawcam. Main I cant quite figure what is wrong with the environment but running it manually invokes the program , running it via 'yawcam.exe' doesn't Just in has this helps any I am having the same problem. But when I closed yawcam and used from the shortcut, it once again did not start.