# Help **URL:** https://librepcb.discourse.group/c/help/7.md [Latest](https://librepcb.discourse.group/latest.md) · [Categories](https://librepcb.discourse.group/categories.md) --- ## [About the Help category](https://librepcb.discourse.group/t/about-the-help-category/71)
**Author:** [@dbrgn](https://librepcb.discourse.group/u/dbrgn)\ **Replies:** 0
Use this category if you’re looking for help regarding the proper use of LibrePCB. This category is meant for discussions about the use of librepcb, not about its development. --- ## [Multiple Boards - "Board Assembly PDF" only one board](https://librepcb.discourse.group/t/multiple-boards-board-assembly-pdf-only-one-board/1026)
**Author:** [@Walter11](https://librepcb.discourse.group/u/Walter11)\ **Replies:** 5\ **Last updated:** [September 29, 2026, 12:57pm UTC](https://librepcb.discourse.group/t/multiple-boards-board-assembly-pdf-only-one-board/1026 "2026-09-29T12:57:09Z")
Hello Everyone, I created a project with multiple boards. Now I want to use the Output Jobs. No Problem with Gerber/BOM/etc. here I can select which board to output. However with the PDF Jobs “Board Assembly PDF” and “… --- ## [The component does not refresh after changes in library](https://librepcb.discourse.group/t/the-component-does-not-refresh-after-changes-in-library/1065)
**Author:** [@kkankai](https://librepcb.discourse.group/u/kkankai)\ **Replies:** 1\ **Last updated:** [August 14, 2026, 3:26pm UTC](https://librepcb.discourse.group/t/the-component-does-not-refresh-after-changes-in-library/1065 "2026-08-14T15:26:46Z")
If this system is purely library-based, I would assume by changing the library item I would change it in the schematic or board. Apparently not. It seems I’ve tried everything under the sun, from placing it again to chan… --- ## [Link eagle imported Parts to general Libs](https://librepcb.discourse.group/t/link-eagle-imported-parts-to-general-libs/1052)
**Author:** [@Berni4](https://librepcb.discourse.group/u/Berni4)\ **Replies:** 1\ **Last updated:** [July 10, 2026, 6:55am UTC](https://librepcb.discourse.group/t/link-eagle-imported-parts-to-general-libs/1052 "2026-07-10T06:55:52Z")
Hi, is it possible to link parts from imported boards from eagle to general editable Library? If i import a eagle project, librePCB generate a „hidden“ lib inside the project folder. I need to edit the footprint to elim… --- ## [How to make a shape for board outline(textolite) instead of a draw polygons?](https://librepcb.discourse.group/t/how-to-make-a-shape-for-board-outline-textolite-instead-of-a-draw-polygons/1050)
**Author:** [@IvanIsak2000](https://librepcb.discourse.group/u/IvanIsak2000)\ **Replies:** 1\ **Last updated:** [July 3, 2026, 5:53pm UTC](https://librepcb.discourse.group/t/how-to-make-a-shape-for-board-outline-textolite-instead-of-a-draw-polygons/1050 "2026-07-03T17:53:42Z")
--- ## [Unknown signal error in adding device to PCB design](https://librepcb.discourse.group/t/unknown-signal-error-in-adding-device-to-pcb-design/1044)
**Author:** [@azural](https://librepcb.discourse.group/u/azural)\ **Replies:** 1\ **Last updated:** [June 19, 2026, 6:16am UTC](https://librepcb.discourse.group/t/unknown-signal-error-in-adding-device-to-pcb-design/1044 "2026-06-19T06:16:15Z")
I was adding a device to the pcb editor when I got the error. "Unknown signal “f677ad9a-f589-4799-9ad-71bf43f94da” found in deviece “dfe9fe 19-3132-4dfb-8bc8-8ae04c80fb45"” --- ## [Hide {{VALUE}} in board view](https://librepcb.discourse.group/t/hide-value-in-board-view/1043)
**Author:** [@liberation](https://librepcb.discourse.group/u/liberation)\ **Replies:** 2\ **Last updated:** [June 7, 2026, 12:08pm UTC](https://librepcb.discourse.group/t/hide-value-in-board-view/1043 "2026-06-07T12:08:50Z")
I want to hide the values of the part on the board. For example on resistors it should display the part id (R1) but not the value (100 Ohm) of it. Is this possible without redesigning (copy) the components and remove {{… --- ## [3D viewer not working on Windows 11 with AMD Vega 10 graphics](https://librepcb.discourse.group/t/3d-viewer-not-working-on-windows-11-with-amd-vega-10-graphics/1038)
**Author:** [@sivate](https://librepcb.discourse.group/u/sivate)\ **Replies:** 2\ **Last updated:** [May 28, 2026, 5:51pm UTC](https://librepcb.discourse.group/t/3d-viewer-not-working-on-windows-11-with-amd-vega-10-graphics/1038 "2026-05-28T17:51:24Z")
--- ## [General guidelines to avoid UUID problems](https://librepcb.discourse.group/t/general-guidelines-to-avoid-uuid-problems/1037)
**Author:** [@davei](https://librepcb.discourse.group/u/davei)\ **Replies:** 12\ **Last updated:** [May 28, 2026, 8:03am UTC](https://librepcb.discourse.group/t/general-guidelines-to-avoid-uuid-problems/1037 "2026-05-28T08:03:43Z")
I would like guidelines spelling out how to avoid problems with UUIDs. I have had many problems with UUIDs. Symptoms include elements of the Library Editor not showing up after a save that seemingly works without error… --- ## [Unable to see messages from file format upgrade](https://librepcb.discourse.group/t/unable-to-see-messages-from-file-format-upgrade/1036)
**Author:** [@Tubbles](https://librepcb.discourse.group/u/Tubbles)\ **Replies:** 4\ **Last updated:** [May 22, 2026, 7:57am UTC](https://librepcb.discourse.group/t/unable-to-see-messages-from-file-format-upgrade/1036 "2026-05-22T07:57:30Z")
Hello when opening my old v1 project i got this: However clicking the “Show Messages” shows the “thinking” mouse pointer icon for a couple of seconds, and then nothing. What is supposed to happen here? Can I see the … --- ## [2.0.1 can’t find Layer Switchers](https://librepcb.discourse.group/t/2-0-1-can-t-find-layer-switchers/1035)
**Author:** [@SmashedTransistors](https://librepcb.discourse.group/u/SmashedTransistors)\ **Replies:** 4\ **Last updated:** [May 17, 2026, 8:38pm UTC](https://librepcb.discourse.group/t/2-0-1-can-t-find-layer-switchers/1035 "2026-05-17T20:38:45Z")
Hello and thanks for LibrePCB. I m making my first pcb with libre PCB andbi don’t find layer switchers neither in the schematics editor, nor the pcb editor, nor the component editor. It makes edition quite tricky. His … --- ## [LibrePCB Base resistor component](https://librepcb.discourse.group/t/librepcb-base-resistor-component/1029)
**Author:** [@w0l](https://librepcb.discourse.group/u/w0l)\ **Replies:** 13\ **Last updated:** [April 28, 2026, 4:42pm UTC](https://librepcb.discourse.group/t/librepcb-base-resistor-component/1029 "2026-04-28T16:42:17Z")
Hi, The resistor component element within the LibrePCB Base library doesn’t have pad/pin connections (at least in my package) leading to an error when attempting to place the component. I can see the allocate the pins … --- ## [How to specify board color?](https://librepcb.discourse.group/t/how-to-specify-board-color/1022)
**Author:** [@Grayson](https://librepcb.discourse.group/u/Grayson)\ **Replies:** 1\ **Last updated:** [April 7, 2026, 3:04pm UTC](https://librepcb.discourse.group/t/how-to-specify-board-color/1022 "2026-04-07T15:04:22Z")
How can I specify a specific board color to the manufacturer, in LibrePCB or directly to board house via email? Are there common colors that are usually available such as blue, green, black? I assume the default is the… --- ## [How to import line graphic to legand (silkscreen) layer](https://librepcb.discourse.group/t/how-to-import-line-graphic-to-legand-silkscreen-layer/1019)
**Author:** [@Grayson](https://librepcb.discourse.group/u/Grayson)\ **Replies:** 5\ **Last updated:** [April 6, 2026, 3:09pm UTC](https://librepcb.discourse.group/t/how-to-import-line-graphic-to-legand-silkscreen-layer/1019 "2026-04-06T15:09:14Z")
I need to import a line graphic into my legand silkscreen layer. There is a “Import DXF” in the FILE menu. Im using a Mac and don’t have an app that creates DXF directly (I have several drawing apps). I can create SVG… --- ## [About AUX](https://librepcb.discourse.group/t/about-aux/1013)
**Author:** [@AntELO](https://librepcb.discourse.group/u/AntELO)\ **Replies:** 9\ **Last updated:** [March 29, 2026, 12:43pm UTC](https://librepcb.discourse.group/t/about-aux/1013 "2026-03-29T12:43:33Z")
Hello everybody! Sorry for probably silly question, I’m new in LibrePCB I’d like to add Audio Jack 6.3mm to my project but I’ve found only Barrel Jack that works with Power, not Audio I tried to import KiCAD and Eagle … --- ## [LibrePCB closes unexpectedly when opening a local library after updating to version 2.0.1](https://librepcb.discourse.group/t/librepcb-closes-unexpectedly-when-opening-a-local-library-after-updating-to-version-2-0-1/1011)
**Author:** [@daniel71](https://librepcb.discourse.group/u/daniel71)\ **Replies:** 9\ **Last updated:** [March 26, 2026, 8:35pm UTC](https://librepcb.discourse.group/t/librepcb-closes-unexpectedly-when-opening-a-local-library-after-updating-to-version-2-0-1/1011 "2026-03-26T20:35:43Z")
Hello, After updating LibrePCB to ver 2.0.1, when opening a local library, the whole software closes unexpectedly with no warning. There was no error message during the installation. In my local library I created tens… --- ## [Creating symbol in My Library](https://librepcb.discourse.group/t/creating-symbol-in-my-library/975)
**Author:** [@craigm](https://librepcb.discourse.group/u/craigm)\ **Replies:** 5\ **Last updated:** [March 21, 2026, 9:41am UTC](https://librepcb.discourse.group/t/creating-symbol-in-my-library/975 "2026-03-21T09:41:41Z")
Hello, I’m new to librepcb. Got it installed, downloaded libraries and managed to get a project started and a few things added to the schematic out of the read only libraries. Now I need to create a 16 pin IC that’s not… --- ## [Can't set line width (bug?)](https://librepcb.discourse.group/t/cant-set-line-width-bug/1009)
**Author:** [@richardhufford](https://librepcb.discourse.group/u/richardhufford)\ **Replies:** 2\ **Last updated:** [March 2, 2026, 5:43pm UTC](https://librepcb.discourse.group/t/cant-set-line-width-bug/1009 "2026-03-02T17:43:19Z")
I’ve been working on a project for days. Normally, when I select the line drawing tool in the Board Editor, a panel appears above my board where I can select the line width and the line drawing behavior. Yesterday, thi… --- ## [Disable dark mode in v2?](https://librepcb.discourse.group/t/disable-dark-mode-in-v2/1002)
**Author:** [@arafiq](https://librepcb.discourse.group/u/arafiq)\ **Replies:** 4\ **Last updated:** [February 15, 2026, 11:56am UTC](https://librepcb.discourse.group/t/disable-dark-mode-in-v2/1002 "2026-02-15T11:56:33Z")
Where can I find the menu option to disable dark mode? I found the “themes” list under “workspace settings” but I am specifically referring to the dark menu backgrounds. --- ## [Library problems during migration to V2.0](https://librepcb.discourse.group/t/library-problems-during-migration-to-v2-0/995)
**Author:** [@sasmus](https://librepcb.discourse.group/u/sasmus)\ **Replies:** 8\ **Last updated:** [February 5, 2026, 5:58pm UTC](https://librepcb.discourse.group/t/library-problems-during-migration-to-v2-0/995 "2026-02-05T17:58:15Z")
I just installed V2.0(release) and migrated my old V1 Projects. During “Update project library” i get some error messages of this kind: “\[ERROR\] Trace of net “VCC” is not allowed to be connected to pad “2” of device “D… --- ## [Symbol grid spacing on V2](https://librepcb.discourse.group/t/symbol-grid-spacing-on-v2/1000)
**Author:** [@ouabache](https://librepcb.discourse.group/u/ouabache)\ **Replies:** 1\ **Last updated:** [February 3, 2026, 7:42pm UTC](https://librepcb.discourse.group/t/symbol-grid-spacing-on-v2/1000 "2026-02-03T19:42:31Z")
How do I change the grid spacing for symbols. It used to be easy to find. --- ## [Bug: ground planes in V2](https://librepcb.discourse.group/t/bug-ground-planes-in-v2/996)
**Author:** [@sasmus](https://librepcb.discourse.group/u/sasmus)\ **Replies:** 1\ **Last updated:** [February 2, 2026, 7:02pm UTC](https://librepcb.discourse.group/t/bug-ground-planes-in-v2/996 "2026-02-02T19:02:35Z")
there is probably a (minor) bug in V2: see this simple test-board (connection between J1 and J2 not drawn for illustration): creating a ground plane with thermal relief leads to this (no plane created at all): a… --- ## [Help for my first design Please!](https://librepcb.discourse.group/t/help-for-my-first-design-please/993)
**Author:** [@JM75](https://librepcb.discourse.group/u/JM75)\ **Replies:** 3\ **Last updated:** [January 29, 2026, 10:08pm UTC](https://librepcb.discourse.group/t/help-for-my-first-design-please/993 "2026-01-29T22:08:03Z")
Hello, I’ve to design a very simple coil but I’ve no idea of how to derive my design with LibrePCB since there isn’t any circuit in it… If somebody have the skills to design such simple circuit and will help… Thank you… --- ## [Empty MPN and Manufacturer in BOM](https://librepcb.discourse.group/t/empty-mpn-and-manufacturer-in-bom/992)
**Author:** [@giancarlo64](https://librepcb.discourse.group/u/giancarlo64)\ **Replies:** 1\ **Last updated:** [January 29, 2026, 3:33pm UTC](https://librepcb.discourse.group/t/empty-mpn-and-manufacturer-in-bom/992 "2026-01-29T15:33:36Z")
Hi, I noticed that for some components the BOM does not show the MPN or Manufacturer, even though they are defined in the Device. I am still using LibrePCB v2 RC1. device1.lp → the information is not shown in the BOM … --- ## [Device name Bill of material](https://librepcb.discourse.group/t/device-name-bill-of-material/991)
**Author:** [@giancarlo64](https://librepcb.discourse.group/u/giancarlo64)\ **Replies:** 2\ **Last updated:** [January 28, 2026, 11:33pm UTC](https://librepcb.discourse.group/t/device-name-bill-of-material/991 "2026-01-28T23:33:02Z")
Hi, I tried using the "Device" or "name" attributes, but the corresponding BOM column is always empty. After analyzing the .lp files in my local library (specifically the dev folder and the device.lp files), I noticed … --- ## [How to save Project with new name?](https://librepcb.discourse.group/t/how-to-save-project-with-new-name/990)
**Author:** [@Tenderfoot](https://librepcb.discourse.group/u/Tenderfoot)\ **Replies:** 6\ **Last updated:** [January 27, 2026, 8:12pm UTC](https://librepcb.discourse.group/t/how-to-save-project-with-new-name/990 "2026-01-27T20:12:03Z")
How do I save a project with a new name. For example saving ‘My Project’ as ‘My Project v2’ I’ve tried several ways, nothing works. Exporting as an ippz archive sort of works but I can’t rename it, it’s read-only and can… --- ## [New user, 1st board pretty simple questions](https://librepcb.discourse.group/t/new-user-1st-board-pretty-simple-questions/974)
**Author:** [@Grayson](https://librepcb.discourse.group/u/Grayson)\ **Replies:** 11\ **Last updated:** [January 22, 2026, 10:55pm UTC](https://librepcb.discourse.group/t/new-user-1st-board-pretty-simple-questions/974 "2026-01-22T22:55:58Z")
New LibrePCB user. I used to design boards as part of my job, but that was several decades ago and I’ve forgotten most of it. Im 79 so stuff comes way slower. I want to start with a simple manual layout board that nee… --- ## [What layers get printed by silk screen?](https://librepcb.discourse.group/t/what-layers-get-printed-by-silk-screen/895)
**Author:** [@wayneworkman](https://librepcb.discourse.group/u/wayneworkman)\ **Replies:** 5\ **Last updated:** [January 22, 2026, 7:07pm UTC](https://librepcb.discourse.group/t/what-layers-get-printed-by-silk-screen/895 "2026-01-22T19:07:11Z")
Hi, Is there a list anywhere for which of these will get printed during production? I am wanting to clearly label stuff and I figured out that “Top Names” gets printed during production, but wanting to know what all els… --- ## [Is it possible to create panelized boards in 2.0?](https://librepcb.discourse.group/t/is-it-possible-to-create-panelized-boards-in-2-0/988)
**Author:** [@Grayson](https://librepcb.discourse.group/u/Grayson)\ **Replies:** 1\ **Last updated:** [January 22, 2026, 4:07pm UTC](https://librepcb.discourse.group/t/is-it-possible-to-create-panelized-boards-in-2-0/988 "2026-01-22T16:07:26Z")
Is it possible to create panelized boards in 2.0? I need to create a small 1.5” x 1.5” board and I need a lot of them. Would be convenient to panelize 6 or 8 at a time. I have use boards that were manufactured with a … --- ## [Empty segment of net](https://librepcb.discourse.group/t/empty-segment-of-net/987)
**Author:** [@giancarlo64](https://librepcb.discourse.group/u/giancarlo64)\ **Replies:** 3\ **Last updated:** [January 19, 2026, 1:21pm UTC](https://librepcb.discourse.group/t/empty-segment-of-net/987 "2026-01-19T13:21:01Z")
Hi, I get the following error or warning: Empty segment of net xxx. The message tells me that is not harmful and that I have to report it as a bug Where is the problem? Gian Carlo [Next page](https://librepcb.discourse.group/c/help/7.md?page=1)