Sql developer is freezing and many errors come up when you first launch it.

These are just the few that have appeared this time when I launch Sql....... How can I solve these Problems As i am a first time user of SQL developer so im not sure how i shud go about it.
SEVERE     36     0     oracle.ideimpl.extension.AddinManagerImpl     Failed to create addin oracle.dbtools.raptor.timesten.TTAddin
SEVERE     37     16     oracle.ideimpl.extension.AddinManagerImpl     Failed to create addin oracle.dbtools.raptor.report.addin.ReportAddin
SEVERE     47     2673     oracle.javatools.ui.themes.ThemeProperties     Failed to load icon mainwindow.normal.bg.image: [Ljava.lang.String;@1c98c1b
SEVERE     48     44     oracle.javatools.ui.themes.ThemeProperties     Failed to load icon onionskin.normal.bg.image: [Ljava.lang.String;@7dedad
SEVERE     49     29     oracle.javatools.ui.themes.ThemeProperties     Failed to load icon viewtab.active.bg.image: [Ljava.lang.String;@1a1472d
SEVERE     50     7     oracle.javatools.ui.themes.ThemeProperties     Failed to load icon scrolltrackv.normal.bg.image: [Ljava.lang.String;@b6994f
SEVERE     51     22     oracle.javatools.ui.themes.ThemeProperties     Failed to load icon tableheader.normal.bg.image: [Ljava.lang.String;@f0761a
SEVERE     52     387     oracle.javatools.ui.themes.ThemeProperties     Failed to load icon viewtab.inactive.bg.image: [Ljava.lang.String;@4b29cf
SEVERE     53     19338     oracle.javatools.ui.themes.ThemeProperties     Failed to load icon tableheader.mouseover.bg.image: [Ljava.lang.String;@1013985                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       

941169 wrote:
These are just the few that have appeared this time when I launch Sql....... How can I solve these Problems As i am a first time user of SQL developer so im not sure how i shud go about it.
SEVERE     36     0     oracle.ideimpl.extension.AddinManagerImpl     Failed to create addin oracle.dbtools.raptor.timesten.TTAddin
SEVERE     37     16     oracle.ideimpl.extension.AddinManagerImpl     Failed to create addin oracle.dbtools.raptor.report.addin.ReportAddin
SEVERE     47     2673     oracle.javatools.ui.themes.ThemeProperties     Failed to load icon mainwindow.normal.bg.image: [Ljava.lang.String;@1c98c1b
SEVERE     48     44     oracle.javatools.ui.themes.ThemeProperties     Failed to load icon onionskin.normal.bg.image: [Ljava.lang.String;@7dedad
SEVERE     49     29     oracle.javatools.ui.themes.ThemeProperties     Failed to load icon viewtab.active.bg.image: [Ljava.lang.String;@1a1472d
SEVERE     50     7     oracle.javatools.ui.themes.ThemeProperties     Failed to load icon scrolltrackv.normal.bg.image: [Ljava.lang.String;@b6994f
SEVERE     51     22     oracle.javatools.ui.themes.ThemeProperties     Failed to load icon tableheader.normal.bg.image: [Ljava.lang.String;@f0761a
SEVERE     52     387     oracle.javatools.ui.themes.ThemeProperties     Failed to load icon viewtab.inactive.bg.image: [Ljava.lang.String;@4b29cf
SEVERE     53     19338     oracle.javatools.ui.themes.ThemeProperties     Failed to load icon tableheader.mouseover.bg.image: [Ljava.lang.String;@1013985
>These are just the few that have appeared this time when I launch Sql....... How can I solve these Problems As i am a first time user of SQL developer so im not sure how i shud go about it.
SEVERE     36     0     oracle.ideimpl.extension.AddinManagerImpl     Failed to create addin oracle.dbtools.raptor.timesten.TTAddin
SEVERE     37     16     oracle.ideimpl.extension.AddinManagerImpl     Failed to create addin oracle.dbtools.raptor.report.addin.ReportAddin
SEVERE     47     2673     oracle.javatools.ui.themes.ThemeProperties     Failed to load icon mainwindow.normal.bg.image: [Ljava.lang.String;@1c98c1b
SEVERE     48     44     oracle.javatools.ui.themes.ThemeProperties     Failed to load icon onionskin.normal.bg.image: [Ljava.lang.String;@7dedad
SEVERE     49     29     oracle.javatools.ui.themes.ThemeProperties     Failed to load icon viewtab.active.bg.image: [Ljava.lang.String;@1a1472d
SEVERE     50     7     oracle.javatools.ui.themes.ThemeProperties     Failed to load icon scrolltrackv.normal.bg.image: [Ljava.lang.String;@b6994f
SEVERE     51     22     oracle.javatools.ui.themes.ThemeProperties     Failed to load icon tableheader.normal.bg.image: [Ljava.lang.String;@f0761a
SEVERE     52     387     oracle.javatools.ui.themes.ThemeProperties     Failed to load icon viewtab.inactive.bg.image: [Ljava.lang.String;@4b29cf
SEVERE     53     19338     oracle.javatools.ui.themes.ThemeProperties     Failed to load icon tableheader.mouseover.bg.image: [Ljava.lang.String;@1013985
what is OS name & version?
Is SQL Developer installed on same system as DB Server
what is Oracle version to 4 decimal places?
Are you sure that Oracle RDBMS is actually running? Post proof

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