# Plot3d in GMT6 on Mac
**URL:** https://forum.generic-mapping-tools.org/t/plot3d-in-gmt6-on-mac/3211
**Category:** Q&A
**Created:** [August 15, 2022, 6:11pm UTC](https://forum.generic-mapping-tools.org/t/plot3d-in-gmt6-on-mac/3211 "2022-08-15T18:11:31Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@manuel.z.abarca](https://forum.generic-mapping-tools.org/u/manuel.z.abarca)
#### Post date: [August 15, 2022, 6:11pm UTC](https://forum.generic-mapping-tools.org/t/plot3d-in-gmt6-on-mac/3211/1 "2022-08-15T18:11:31Z")
Why the library plot3d appears as not installed in my GMT6 installed on Mac pc ?.
This is the error message:
ERROR: No module named plot3d was found. This could mean one of four cases:
1. There actually is no such module; please check your spelling.
2. You used a modern mode module name while running in GMT classic mode.
3. Module exists in the GMT supplemental library, but the library could not be found.
4. Module exists in a GMT custom library, but none was specified via GMT\_CUSTOM\_LIBS.
Nevertheless, the manual page of plot3d is showed and the help page also.
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### Author:  [@Joaquim](https://forum.generic-mapping-tools.org/u/Joaquim)
#### Post date: [August 15, 2022, 6:59pm UTC](https://forum.generic-mapping-tools.org/t/plot3d-in-gmt6-on-mac/3211/2 "2022-08-15T18:59:20Z")
You probably missed the `gmt` prefix. That is `gmt plot3d ...`
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### Author:  [@manuel.z.abarca](https://forum.generic-mapping-tools.org/u/manuel.z.abarca)
#### Post date: [August 16, 2022, 6:37pm UTC](https://forum.generic-mapping-tools.org/t/plot3d-in-gmt6-on-mac/3211/3 "2022-08-16T18:37:38Z")
Na, na ,na. The command: GMT plot3d ; is complete.
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### Author:  [@Joaquim](https://forum.generic-mapping-tools.org/u/Joaquim)
#### Post date: [August 16, 2022, 7:09pm UTC](https://forum.generic-mapping-tools.org/t/plot3d-in-gmt6-on-mac/3211/4 "2022-08-16T19:09:10Z")
Sorry, what does than mean?
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### Author:  [@pwessel](https://forum.generic-mapping-tools.org/u/pwessel)
#### Post date: [August 16, 2022, 7:25pm UTC](https://forum.generic-mapping-tools.org/t/plot3d-in-gmt6-on-mac/3211/5 "2022-08-16T19:25:11Z")
Just a few comments.
- When you say GMT 6 do you mean 6.4 or some early version 6 flavor?
- Since thousands of GMT users on Windows do not have this problem there has to be something odd on your end.
- plot3d is part of the GMT core so if you can run any other GMT command you can run plot3d.
- Finally, plot3d and plot etc are modern mode names. Perhaps you are not doing gmt plot3d in a modern mode session?
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### Author:  [@manuel.z.abarca](https://forum.generic-mapping-tools.org/u/manuel.z.abarca)
#### Post date: [August 20, 2022, 5:23pm UTC](https://forum.generic-mapping-tools.org/t/plot3d-in-gmt6-on-mac/3211/6 "2022-08-20T17:23:24Z")
La solucion fue muy simple. La biblioteca plot3d es moderna y solo es accesible con la sintaxis moderna de GMT.
gmt begin
gmt plot3d …
gmt end