"Access denied : Language set in the target is not compatible with LabVIEW language." Error Occurs in LabVIEW 2026 Q1 Japanese or Chinese Versions

Issue Details

When I attempt to connect to my Real-Time target such as a CompactRIO with LabVIEW 2026 Q1 Japanese or Chinese version (32-bit or 64-bit), I get a language locale mismatch error like the screenshot below. What is the root cause of this issue and is there any workarounds?

Solution

This is a bug in LabVIEW 2026 Q1 Real-Time Module. As of July, 2026, we have released a patch that fixes this issue for Real-Time targets that are able to access the internet. 

However, if you need to install to an offline Real-Time target, you need to perform the steps below:

For Japanese Version:

1. Install LabVIEW Real-Time Language Support for Japanese to the Real-Time target.
2. Download rtapp_Japanese.zip from the bottom of this page, unzip and copy the rtapp.rsc file to the target. Move it to /usr/local/natinst/labview/japanese folder in the RT target. Overwrite the existing file in that location.
   If you are unable to overwrite the existing file, log into your Real-Time target using SSH and change the folder permissions by using the following commands (refer to the Knowledgebase article linked below for steps to access the Real-Time target shell using SSH):
   
   • cd /usr/local/natinst/labview/japanese
   • chmod 777
3. Restart the LabVIEW runtime by rebooting the target or running this command via SSH:
   /etc/init.d/nilvrt stop && /etc/init.d/nilvrt start

For Chinese Version:

1. Install LabVIEW Real-Time Language Support for Chinese to the Real-Time target.
2. Download rtapp_Chinese.zip from the bottom of this page, unzip and copy the rtapp.rsc file to the target. Move it to /usr/local/natinst/labview/chinese folder in the RT target. Overwrite the existing file in that location.
   If you are unable to overwrite the existing file, log into your Real-Time target using SSH and change the folder permissions by using the following commands (refer to the Knowledgebase article linked below for steps to access the Real-Time target shell using SSH):
   
   • cd /usr/local/natinst/labview/chinese
   • chmod 777
3. Restart the LabVIEW runtime by rebooting the target or running this command via SSH:
   /etc/init.d/nilvrt stop && /etc/init.d/nilvrt start