Error when install dotnet/core/aspnet:3.1 on CentOS 8 - Folder [/usr/share/dotnet/host/fxr] does not contain any version-numbered child folders

ZhivovOleg
December 23, 2020
191 views
1 vote
2 Answers

Like as dotnet/dotnet-docker#1537
but I have same error on CenOS 8 (not Docker) on standalone machine.
Clean new CentOS 8 with latest updates on 23 dec 2020.
in console:

sudo dnf install aspnetcore-runtime-3.1 – OK

dotnet – OK (shows using manual)

dotnet --info – error:

A fatal error occurred, the folder [/usr/share/dotnet/host/fxr] does not contain any version-numbered child folders

dotnet --list-runtimes – error:
A fatal error occurred, the folder [/usr/share/dotnet/host/fxr] does not contain any version-numbered child folders

dotnet *.dll – error:
A fatal error occurred, the folder [/usr/share/dotnet/host/fxr] does not contain any version-numbered child folders

the folder /usr/share/dotnet/host/fxr is really empty. Trying to install SDK – no effect

Answers

- ZuBsPaCe
- January 5, 2021 at 9:22 am
- 0 votes
0
I had the same problem after updating my system to Fedora 32. The problem was, that I had installed dotnet-runtime-2.1 before, but Fedora 32 comes with 3.1 included.

If your dotnet application is compatible with 3.1, you can simply uninstall the old runtime. That’s how I did it:
1. Check installed dotnet runtimes:
```
$ rpm -qa | grep dotnet
dotnet-runtime-2.1-2.1.12-1.x86_64
dotnet-runtime-deps-2.1-2.1.12-1.x86_64
dotnet-hostfxr-2.1-2.1.12-1.x86_64
dotnet-host-3.1.10-1.fc32.x86_64
```
In my case, version 2.1 was installed by myself. 3.1 was installed by the system (tagged with fc32)
1. Remove the old version:
```
dnf remove dotnet-runtime-2.1
```
1. To install 2.1, I had to add the microsoft repo before, which is not needed anymore:
```
rm /etc/yum.repos.d/microsoft-prod.repo
```
1. For some unknown reason, uninstalling 2.1 also uninstalled 3.1. Install it as you usually would:
```
 dnf install dotnet-runtime-3.1
```
1. dotnet --info should work again.
For more information or if your application requires dotnet 2.1:

https://github.com/dotnet/core/issues/4655
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- JhonnyRamirezZeballos
- June 4, 2021 at 5:30 pm
- 0 votes
0
If the dotnet sdk is version 5.0

step 1.- Remove sdk
```
sudo dnf remove dotnet-sdk-5.0
```
step 2.- remove folders
```
sudo rm -rf /usr/share/dotnet
sudo rm -rf /usr/bin/dotnet
sudo rm -rf /etc/yum.repos.d/microsoft-prod.repo
```
step 4.- Clean and upgrade.
```
sudo dnf clean all
sudo dnf upgrade
```
step 5.- Reboot system
```
sudo init 6
```
step 6.- Finally
```
sudo dnf install dotnet-sdk-5.0
```
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