ContributionsMost RecentMost LikesSolutionsRe: Ready API 3.43.1 not able to launch nmrao Thank you very much 😊. After installing the updated Ready API version, the problem has been fixed. Re: Ready API 3.43.1 not able to launch nmrao below is the text from the cmd ... SLF4J: Class path contains multiple SLF4J bindings. SLF4J: Found binding in [jar:file:/C:/Program%20Files/SmartBear/ReadyAPI-3.43.1/lib/log4j-slf4j-impl-2.11.0.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: Found binding in [jar:file:/C:/Program%20Files/SmartBear/ReadyAPI-3.43.1/lib/log4j-slf4j-impl-2.17.1.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation. SLF4J: Actual binding is of type [org.apache.logging.slf4j.Log4jLoggerFactory] WARNING: A command line option has enabled the Security Manager WARNING: The Security Manager is deprecated and will be removed in a future release SLF4J: Class path contains multiple SLF4J bindings. SLF4J: Found binding in [jar:file:/C:/Program%20Files/SmartBear/ReadyAPI-3.43.1/lib/log4j-slf4j-impl-2.11.0.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: Found binding in [jar:file:/C:/Program%20Files/SmartBear/ReadyAPI-3.43.1/lib/log4j-slf4j-impl-2.17.1.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation. SLF4J: Actual binding is of type [org.apache.logging.slf4j.Log4jLoggerFactory] WARNING: A terminally deprecated method in java.lang.System has been called WARNING: System::setSecurityManager has been called by com.smartbear.ready.ui.ReadyApiMain (file:/C:/Program%20Files/SmartBear/ReadyAPI-3.43.1/bin/ready-api-ui-3.43.1.jar) WARNING: Please consider reporting this to the maintainers of com.smartbear.ready.ui.ReadyApiMain WARNING: System::setSecurityManager will be removed in a future release 13:32:43.221 [main] ERROR com.smartbear.ready.ui.ReadyApiMain - Failed to start ReadyAPI. java.lang.NoSuchMethodError: 'com.smartbear.ready.license.proxy.ProtectionProxyHandler com.smartbear.ready.license.proxy.ProtectionProxyHandler.getInstance()' at com.smartbear.ready.ui.ReadyApiMain.initializeIndependentEagerSingletons(ReadyApiMain.java:101) ~[ready-api-ui-3.43.1.jar:3.43.1] at com.smartbear.ready.ui.ReadyApiMain.main(ReadyApiMain.java:216) [ready-api-ui-3.43.1.jar:3.43.1] Ready API 3.43.1 not able to launch I tried to launch the Ready API this morning and it would not launch. not getting any error message and also I have restarted my PC couple of times.