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  <title>4. Installation/Compilation on Windows</title>
  <link rel="self" href="https://dlt-acc.firelay.cloud/c/message_boards/find_category?p_l_id=4041874&amp;mbCategoryId=4391080" />
  <subtitle>This category contains issues related to the installation or compilation on Windows</subtitle>
  <id>https://dlt-acc.firelay.cloud/c/message_boards/find_category?p_l_id=4041874&amp;mbCategoryId=4391080</id>
  <updated>2026-05-12T17:43:27Z</updated>
  <dc:date>2026-05-12T17:43:27Z</dc:date>
  <entry>
    <title>Compiling on Window- run prepare_sln.py</title>
    <link rel="alternate" href="https://dlt-acc.firelay.cloud/c/message_boards/find_message?p_l_id=4041874&amp;messageId=4391756" />
    <author>
      <name>Matteo Redana</name>
    </author>
    <id>https://dlt-acc.firelay.cloud/c/message_boards/find_message?p_l_id=4041874&amp;messageId=4391756</id>
    <updated>2021-04-26T12:45:04Z</updated>
    <published>2021-04-26T12:45:04Z</published>
    <summary type="html">Hi all, I am quite new. Following the procedure to compile DFlow FM, I have reached the step where I sould run proepare_sln.py. When I double click on it a window appear asking me to choose the VS version (between 2010 to 2017), .Net Frameworks version and IFORT version. I am working with VS 2019, compiler 19.0: does it mean that I need to use oldest version of both?&lt;br /&gt;thanks </summary>
    <dc:creator>Matteo Redana</dc:creator>
    <dc:date>2021-04-26T12:45:04Z</dc:date>
  </entry>
  <entry>
    <title>Problem regarding importing D-Flow FM model</title>
    <link rel="alternate" href="https://dlt-acc.firelay.cloud/c/message_boards/find_message?p_l_id=4041874&amp;messageId=4391148" />
    <author>
      <name>Saowanit Prabnakorn</name>
    </author>
    <id>https://dlt-acc.firelay.cloud/c/message_boards/find_message?p_l_id=4041874&amp;messageId=4391148</id>
    <updated>2018-10-11T11:57:26Z</updated>
    <published>2018-10-11T11:57:25Z</published>
    <summary type="html">&lt;p&gt;Dear all,&lt;/p&gt;
&lt;p&gt; &lt;/p&gt;
&lt;p&gt;I just starting using D-Flow Flexible Mesh for my research work. I
  have a problem with importing westernscheldt05.mdu for Tutorial 6, the
  error always pops up as in the attached file. I tried to restart,
  re-install the program but couldn't help.&lt;/p&gt;
&lt;p&gt;Here are some information regarding the specifications of my computer
  and program&lt;/p&gt;
&lt;p&gt;- Window 10 Home&lt;/p&gt;
&lt;p&gt;- Processor: Intel (R) Core (TM) i7-8550U CPU @ 1.8GHz 2.00 GHz&lt;/p&gt;
&lt;p&gt;- System type: 64-bit Operating System, x64-based processor&lt;/p&gt;
&lt;p&gt;- Delft3D FM Suit 2018.01 HMWQ&lt;/p&gt;
&lt;p&gt; &lt;/p&gt;
&lt;p&gt;I think it should be related to Window issue because my friend, who
  use Window 7, doesn't have this problem. Please give me any
  suggestions to solve this problem and I can continue working. Thanks
  in advance.&lt;/p&gt;
&lt;p&gt; &lt;/p&gt;</summary>
    <dc:creator>Saowanit Prabnakorn</dc:creator>
    <dc:date>2018-10-11T11:57:25Z</dc:date>
  </entry>
  <entry>
    <title>Error importing project file</title>
    <link rel="alternate" href="https://dlt-acc.firelay.cloud/c/message_boards/find_message?p_l_id=4041874&amp;messageId=4393069" />
    <author>
      <name>Erik de Rooij</name>
    </author>
    <id>https://dlt-acc.firelay.cloud/c/message_boards/find_message?p_l_id=4041874&amp;messageId=4393069</id>
    <updated>2016-08-22T14:11:43Z</updated>
    <published>2016-08-22T14:11:43Z</published>
    <summary type="html">Dear Deltares,&lt;br /&gt;&lt;br /&gt;I have installed Delft3D FM 2016, but I can&amp;#39;t use it. I keep bumping into the same error when I try to load a project or import, but I don&amp;#39;t know what it means. My colleague does not experience this problem, when working with the same project files.&lt;br /&gt;Do you have experience with this type of error?&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;System.NullReferenceException: Object reference not set to an instance of an object.&lt;br /&gt;   at DeltaShell.Plugins.FMSuite.FlowFM.Gui.FlowFMGuiPlugin.&amp;lt;OnActivityRunnerStatusChanged&amp;gt;(Object sender, ActivityStatusChangedEventArgs activityStatusChangedEventArgs)&lt;br /&gt;   at DeltaShell.Plugins.FMSuite.FlowFM.Gui.FlowFMGuiPlugin.&amp;lt;OnActivityRunnerStatusChanged&amp;gt;c__Binding.Invoke(Object&amp;amp; instance, Arguments arguments, Object aspectArgs)&lt;br /&gt;   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)&lt;br /&gt;   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)&lt;br /&gt;   at System.Windows.Threading.DispatcherOperation.InvokeImpl()&lt;br /&gt;   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)&lt;br /&gt;   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)&lt;br /&gt;   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)&lt;br /&gt;   at MS.Internal.CulturePreservingExecutionContext.Run(CulturePreservingExecutionContext executionContext, ContextCallback callback, Object state)&lt;br /&gt;   at System.Windows.Threading.DispatcherOperation.Invoke()&lt;br /&gt;   at System.Windows.Threading.Dispatcher.ProcessQueue()&lt;br /&gt;   at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean&amp;amp; handled)&lt;br /&gt;   at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean&amp;amp; handled)&lt;br /&gt;   at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)&lt;br /&gt;   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)&lt;br /&gt;   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)&lt;br /&gt;   at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)&lt;br /&gt;   at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)&lt;br /&gt;   at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG&amp;amp; msg)&lt;br /&gt;   at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)&lt;br /&gt;   at System.Windows.Application.RunDispatcher(Object ignore)&lt;br /&gt;   at System.Windows.Application.RunInternal(Window window)&lt;br /&gt;   at DeltaShell.Gui.App.Main()&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;Please let me know,&lt;br /&gt;&lt;br /&gt;Joel</summary>
    <dc:creator>Erik de Rooij</dc:creator>
    <dc:date>2016-08-22T14:11:43Z</dc:date>
  </entry>
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