# Component version mismatch
**URL:** https://resource.dopus.com/t/component-version-mismatch/17464
**Category:** Help & Support
**Created:** [March 2, 2014, 7:56am UTC](https://resource.dopus.com/t/component-version-mismatch/17464 "2014-03-02T07:56:00Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@mirtma](https://resource.dopus.com/u/mirtma)
#### Post date: [March 2, 2014, 7:56am UTC](https://resource.dopus.com/t/component-version-mismatch/17464/1 "2014-03-02T07:56:00Z")
I've tried to update from 10.5.4.0 to 10.5.5.0 and I've got this error:
Component version mismatch!
Program 10.5.5.0.
Library: 10.5.4.0
Language 10.5.5.0
Please reinstall Directory OPus.
I've reinstalled it but it didn't help. Also found topic with same problem, but for DO9. It didn't help. I have Windows 8.1 PRO 64 bit.
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### Author:  [@Jon](https://resource.dopus.com/u/Jon)
#### Post date: [March 2, 2014, 8:14am UTC](https://resource.dopus.com/t/component-version-mismatch/17464/2 "2014-03-02T08:14:33Z")
You need to reboot after installing the update.
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### Author:  [@mirtma](https://resource.dopus.com/u/mirtma)
#### Post date: [March 2, 2014, 8:27am UTC](https://resource.dopus.com/t/component-version-mismatch/17464/3 "2014-03-02T08:27:12Z")
Now I want to download direct from DOpus site and this I found confusing:
[https://www.dropbox.com/s/fo2nywm8avfpw5t/DOPus.png](https://www.dropbox.com/s/fo2nywm8avfpw5t/DOPus.png)
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### Author:  [@mirtma](https://resource.dopus.com/u/mirtma)
#### Post date: [March 2, 2014, 8:32am UTC](https://resource.dopus.com/t/component-version-mismatch/17464/4 "2014-03-02T08:32:42Z")
Oh, nothing wrong with download page, ignore post 3.
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### Author:  [@mirtma](https://resource.dopus.com/u/mirtma)
#### Post date: [March 2, 2014, 8:33am UTC](https://resource.dopus.com/t/component-version-mismatch/17464/5 "2014-03-02T08:33:06Z")
> [@jon](#):
>
> You need to reboot after installing the update.
I did.