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Invalid assign `memory` to NULL'

See original GitHub issue

Fatal error: Uncaught exception 'php\lang\JavaException' with message 'java.lang.RuntimeException: Invalid assign `memory` to NULL' in res://php/gui/framework/Application.php on line 606, position 17
Stack Trace:
#0 {closure}() called at [res://php/gui/framework/Application.php:670]
#1 {closure}() called at [res://php/gui/framework/Application.php:606]
#2 {main}
  thrown in res://php/gui/framework/Application.php on line 606

JVM Stack trace:
  php.runtime.Memory.assign(Memory.java:538)
  <Closure>(res://index.php:14)
  java.lang.reflect.Method.invoke(Unknown Source)
  php.runtime.reflection.MethodEntity.invokeDynamic(MethodEntity.java:239)
  php.runtime.invoke.ObjectInvokeHelper.invokeMethod(ObjectInvokeHelper.java:215)
  php.runtime.invoke.InvokeHelper.callAny(InvokeHelper.java:99)
  <Closure>(res://php/gui/framework/Application.php:618)
  java.lang.reflect.Method.invoke(Unknown Source)
  php.runtime.reflection.MethodEntity.invokeDynamic(MethodEntity.java:239)
  php.runtime.invoke.ObjectInvokeHelper.invokeMethod(ObjectInvokeHelper.java:275)
  php.runtime.invoke.DynamicMethodInvoker.invoke(DynamicMethodInvoker.java:57)
  php.runtime.invoke.Invoker.call(Invoker.java:80)
  php.runtime.invoke.Invoker.callNoThrow(Invoker.java:115)
  php.runtime.invoke.Invoker.callAny(Invoker.java:107)
  org.develnext.jphp.ext.javafx.classes.UXApplication$CustomApplication.start(UXApplication.java:238)
  com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$161(LauncherImpl.java:863)
  com.sun.javafx.application.PlatformImpl.lambda$runAndWait$174(PlatformImpl.java:326)
  com.sun.javafx.application.PlatformImpl.lambda$null$172(PlatformImpl.java:295)
  java.security.AccessController.doPrivileged(Unknown Source)
  com.sun.javafx.application.PlatformImpl.lambda$runLater$173(PlatformImpl.java:294)
  com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
  com.sun.glass.ui.win.WinApplication._runLoop(WinApplication.java)
  com.sun.glass.ui.win.WinApplication.lambda$null$147(WinApplication.java:177)
  java.lang.Thread.run(Unknown Source)