# Error: "Couldn’t start the internal web server."

**URL:** <https://forums.realmacsoftware.com/t/error-couldn-t-start-the-internal-web-server/13056>\
**Category:** RapidWeaver Classic\
**Tags:** preview\
**Created:** [March 13, 2017, 6:37pm UTC](https://forums.realmacsoftware.com/t/error-couldn-t-start-the-internal-web-server/13056 "2017-03-13T18:37:37Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![atrautman](https://avatars.discourse-cdn.com/v4/letter/a/77aa72/32.png) [@atrautman](https://forums.realmacsoftware.com/u/atrautman)\
**Post date:** [March 13, 2017, 6:37pm UTC](https://forums.realmacsoftware.com/t/error-couldn-t-start-the-internal-web-server/13056/1 "2017-03-13T18:37:37Z")

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I just upgraded from Rapidweaver 6 to 7.3. When I go to Preview mode, I see the following error:

Couldn’t start the internal web server.  
Please restart Rapidweaver.

After a minute or so, the page does load normally. But restarting Rapidweaver does not solve the issue. Who knows what’s going on here?

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**Author:** ![Lemon](https://avatars.discourse-cdn.com/v4/letter/l/d2c977/32.png) [@Lemon](https://forums.realmacsoftware.com/u/Lemon)\
**Post date:** [September 24, 2018, 8:31am UTC](https://forums.realmacsoftware.com/t/error-couldn-t-start-the-internal-web-server/13056/2 "2018-09-24T08:31:42Z")

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I have the same Problem, but with the latest Version of 8 …