LTspice not launching after installation for versions above 24

Hi ChinmayAlpe ,

Can you inspect the LTspice.ini in Appdata. Assuming this is a new installation, no other earlier installations on this machine?

mike

Hi Mike, thanks for the reply. As per my understanding you are refering to the "C:\Users\<User>\AppData\Local\LTspice" directory. There is no .ini file in the same. I have attached screenshots for your reference

…Appdata\Roaming\LTspice.ini

I have attached the contents of the file below, it gets autogenerated upon launching I am assuming. Launch still fails.

[Options]
UUID=05380783951448649660
CaptureAnalytics=true
LastRunVersion=26.0.2
HighestRunVersion=26.0.2
Solver=0
DisableSchSubdirPlaceComp=false
ShowCheckSum=false
SymbolSearchPathDisabled=false
LibrarySearchPathDisabled=false
SpicePriority=1
PlotPriority=1
LastFileTypeOpened=0
LastControlPanelPage=-1
Tabstopwidth=4
grid=off
GenerateExpandedListing=false
DefaultTrtol=2
DefaultTrapIntegration=true
DefaultDoAntiTrapRinging=false
TSKbypass=false
Accept_3k4_Notation=true
NoJFETtempAdjIsr=false
AsciiRawFile=false
DoRelinearization=false
DoQuadraticWaves=false
RelinIAbsTol=1e-09
RelinRelTol=0.0025
RelinVAbsTol=1e-05
RelinearWindowPnts=1024
CompressTranOnly=true
SaveDeviceCurrents=true
SaveSubcircuitNodeVoltages=false
SaveSubcircuitDeviceCurrents=false
saveOneCurrentPerDevice=false
ShowSchematicGrid=false
OrthogonalDrag=false
AutoPan=true
DirectCompPinShorts=false
MinInductorDamping=true
UseClocktoReseedMC=false
EnableBetaOptimizations=false
BoldSchFont=true
ShowTitleBox=true
ReverseMouseWheelScroll=false
DefaultDeviceModels=true
DefaultDeviceLibraries=true
EnableWindowTabs=true
SchFontSize=28
SchematicFont=3
PenWidth=1
DataPenWidth=1
CursorThickness=1
WindowSize=0 0 0 0
ToolBarStyle=0
ToolBarIconSize=1
AutoSaveOnSim=0
MDIbackgroundImage=1
AutoDeleteRawFiles=0
DraftCursorType=0
FastAccessRAM=0.4
WaveformViewerFont=0
WaveformViewerFontSize=10
WaveformViewerBoldFont=true
UseXORcursor=false
RawCursorType=0
MonochromePrinting=true
NoGreekMus=false
RadianMeasure=false
DefaultTileType=true
UseRawTempDir=false
WarnOnNoIndRser=false
[Colors]
Grid=6579300
InActiveAxis=9868950
WaveColor0=0
WaveColor1=11513775
WaveColor2=65280
WaveColor3=16711680
WaveColor4=255
WaveColor5=11513600
WaveColor6=16711935
WaveColor7=8421504
WaveColor8=32768
WaveColor9=11468800
WaveColor10=32943
WaveColor11=8388736
WaveColor12=128
WaveColor13=44975
SchematicColor0=16711680
SchematicColor1=16711680
SchematicColor2=8323072
SchematicColor3=16711680
SchematicColor4=12648447
SchematicColor5=0
SchematicColor6=0
SchematicColor7=0
SchematicColor8=13107200
SchematicColor9=16711680
SchematicColor10=65535
SchematicColor11=0
SchematicColor12=12632256
SchematicColor13=13107200
NetlistNormalTextColor=0
NetlistCommentTextColor=32768
NetlistDotcmdTextColor=16711680
NetlistBackgroundColor=16777215
ContinuationLineColor=255
[SchKeyBoardShortCut]
Configure_Analysis=A
Run_Simulation=Alt+R
Halt_Simulation=Alt+S
View_SPICE_Error_Log=Ctrl+L
Zoom_Area=Z
Zoom_Back=Shift+Z
Zoom_to_Fit=Space
Draw_Wire_Mode=W
Place_Ground=G
Place_Voltage_Source=V
Place_Current_Source=I
Place_Resistor=R
Place_Capacitor=C
Place_Inductor=L
Place_Diode=D
Place_Component=P
Place_Netname=N
Place_Comment_Text=T
Place_SPICE_Directive=. >
Move_Mode=M
Drag_Mode=S
Rotate=Ctrl+R
Mirror=Ctrl+E
Delete_Mode=Backspace
Duplicate_Mode=Ctrl+C
Undo=Ctrl+Z
Redo=Ctrl+Shift+Z
Draw_Lines=(none)
Draw_Rectangles=(none)
Draw_Circles=(none)
Draw_Arcs=(none)
Schematic_Grid=Ctrl+G
Unconn_Pin_Marks=Ctrl+U
Text_Anchor_Marks=Ctrl+A
Reset_T_0=0
Place_BUS_Tap=B
Place_COM=Alt+G
[AsyKeyBoardShortCut]
Object_Anchors=O
Place_Pin=P
Delete_Mode=Backspace
Duplicate_Mode=Ctrl+C
Move_Mode=M
Drag_Mode=S
Undo=Ctrl+Z
Redo=Ctrl+Shift+Z
Place_Comment_Text=T
Draw_Lines=L
Draw_Rectangles=R
Draw_Arcs=A
Draw_Circles=C
Rotate=Ctrl+R
Mirror=Ctrl+E
Attribute_Editor=Ctrl+A
Attribute_Window=Ctrl+W
Zoom_Back=Shift+Z
Zoom_In=Z
Zoom_to_Fit=Space
Show_Pin_Table=(none)
[RawKeyBoardShortCut]
Zoom_to_Fit=Space
Zoom_Area=Z
Zoom_Back=Shift+Z
Vertically_Autorange=Ctrl+Y
Redraw_Window=F5
Toggle_Grid=Ctrl+G
Delete_Mode=Backspace
Add_Trace=A
Add_Pane=P
Add_Pane_Below=B
Move_Pane_Up=U
Move_Pane_Down=D
Undo=Ctrl+Z
Redo=Ctrl+Shift+Z
Run_Simulation=Alt+R
Halt_Simulation=Alt+S
Open_Plot_Settings_File=O
Reload_Plot_Settings_File=Ctrl+Space
Place_trace_cursor=C
Clear_all_cursors=Shift+C
Label_cursor_position=L
Place_text_on_the_plot=T
Draw_an_arrow_on_the_plot=(none)
Draw_a_line_on_the_plot=I
Draw_a_box_on_the_plot=R
Draw_a_circle_on_the_plot=(none)
Annotation_Line_Style/Color=(none)
Copy_Plot_Annotations=Ctrl+C
Move_Plot_Annotations=M
Drag_Plot_Annotations=S
Select_Steps=Shift+S
View_SPICE_Error_Log=Ctrl+L
[NetKeyBoardShortCut]
Goto_Line_Number=Ctrl+G
Run_Simulation=Alt+R
Halt_Simulation=Alt+S
Undo=Ctrl+Z
Redo=Ctrl+Shift+Z
View_SPICE_Error_Log=Ctrl+L

Hi ChinmayAlpe ,

There are, in most cases, two possible reasons for a launch failure (without error message). First is missing or damaged ini; the second, missing library files. Ini appears OK. I'm assuming you are using a machine with English as the single language?

You should see the library folders (examples, lib) and files in User…Appdata\local\LTspice for "Install for Me".

Can you zip up the .ini file and attach here? Thanks.

mike

Sorry for the delayed reply. As you can see there is no .ini file in this folder. Do you want the same file that I have attached previously, the one in '...\Appdata\Roaming'?

Hi ChinmayAlpe ,

OK, the files are there, so that shouldn't be the problem. Yes, same ini file from roaming, but zip it up first. Thanks.

mike