Errors on my command window for every click and selection of a block in simulink and simscape

When I open matlab I get an error on my command window. This error keeps coming whenever I am working on simulink, that is, whenever I select a component or a block or even when I hover over a component. This is the details of the error.

Error using dig.isProductInstalled>getProductNames (line 58)
Java exception occurred:
java.lang.NoClassDefFoundError: com/mathworks/instutil/MinimalProducts

	at
    com.mathworks.install_impl.InstalledProductFactory$InstallerWorkSpace.createInjector(Unknown
    Source)

	at
    com.mathworks.install_impl.InstalledProductFactory$InstallerWorkSpace.executeTask(Unknown
    Source)

	at
    com.mathworks.install_impl.InstalledProductFactory$InstallerWorkSpace.access$300(Unknown
    Source)

	at
    com.mathworks.install_impl.InstalledProductFactory.getInstalledProducts(Unknown
    Source)

Caused by: java.lang.ClassNotFoundException:
com.mathworks.instutil.MinimalProducts

	at java.net.URLClassLoader.findClass(URLClassLoader.java:382)

	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)

	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)

	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)

	... 4 more


Error in dig.isProductInstalled (line 44)
            productNames = getProductNames;

Error in slSingleSelectionActionConfig
 
Error using dig.isProductInstalled>getProductNames (line 58)
Java exception occurred:
java.lang.NoClassDefFoundError: com/mathworks/instutil/MinimalProducts

	at
    com.mathworks.install_impl.InstalledProductFactory$InstallerWorkSpace.createInjector(Unknown
    Source)

	at
    com.mathworks.install_impl.InstalledProductFactory$InstallerWorkSpace.executeTask(Unknown
    Source)

	at
    com.mathworks.install_impl.InstalledProductFactory$InstallerWorkSpace.access$300(Unknown
    Source)

	at
    com.mathworks.install_impl.InstalledProductFactory.getInstalledProducts(Unknown
    Source)

Caused by: java.lang.ClassNotFoundException:
com.mathworks.instutil.MinimalProducts

	at java.net.URLClassLoader.findClass(URLClassLoader.java:382)

	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)

	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)

	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)

	... 4 more


Error in dig.isProductInstalled (line 44)
            productNames = getProductNames;

Error in slSingleSelectionActionConfig
 
Error using dig.isProductInstalled>getProductNames (line 58)
Java exception occurred:
java.lang.NoClassDefFoundError: com/mathworks/instutil/MinimalProducts

	at
    com.mathworks.install_impl.InstalledProductFactory$InstallerWorkSpace.createInjector(Unknown
    Source)

	at
    com.mathworks.install_impl.InstalledProductFactory$InstallerWorkSpace.executeTask(Unknown
    Source)

	at
    com.mathworks.install_impl.InstalledProductFactory$InstallerWorkSpace.access$300(Unknown
    Source)

	at
    com.mathworks.install_impl.InstalledProductFactory.getInstalledProducts(Unknown
    Source)

Caused by: java.lang.ClassNotFoundException:
com.mathworks.instutil.MinimalProducts

	at java.net.URLClassLoader.findClass(URLClassLoader.java:382)

	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)

	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)

	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)

	... 4 more


Error in dig.isProductInstalled (line 44)
            productNames = getProductNames;

Error in slSingleSelectionActionConfig
 
Error using dig.isProductInstalled>getProductNames (line 58)
Java exception occurred:
java.lang.NoClassDefFoundError: com/mathworks/instutil/MinimalProducts

	at
    com.mathworks.install_impl.InstalledProductFactory$InstallerWorkSpace.createInjector(Unknown
    Source)

	at
    com.mathworks.install_impl.InstalledProductFactory$InstallerWorkSpace.executeTask(Unknown
    Source)

	at
    com.mathworks.install_impl.InstalledProductFactory$InstallerWorkSpace.access$300(Unknown
    Source)

	at
    com.mathworks.install_impl.InstalledProductFactory.getInstalledProducts(Unknown
    Source)

Caused by: java.lang.ClassNotFoundException:
com.mathworks.instutil.MinimalProducts

	at java.net.URLClassLoader.findClass(URLClassLoader.java:382)

	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)

	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)

	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)

	... 4 more

Answer 1

[Anjaneyulu Bairi]

Hi,

I understand that you are getting errors on command window which is related to java class not found error. The "NoClassDefFoundError” is thrown because MATLAB couldn’t find Java Runtime libraries and the possible reasons are listed below.

• Missing of some .jar files in MATLAB Installation folder and to add any jar file to the path execute below command.

javaaddpath(‘jar_file_path’);

• There are no references of JAR files in “classpath.txt” to JAVA Runtime libraries so add references of jar libraries in classpath.txt.
• MATLAB search path may cause this issue sometimes, so restore the default search path by executing below command.

restoredefaultpath 

If error persists, Uninstall the MATLAB and re-install it.

Hope it helps to resolve your query.