Labview Installation Freezing during Offline Manual

[santo_13]

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@cy... wrote:

I got the "An internal error occurred. Value cannot be null. Parameter name: key" from using the latest NIPM online install for LabVIEW only (some additions may trigger the offline help error freeze) after choosing to check for update. the same error also happen with the offline iso

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Few other seem to have faced this issue, and root cause seem to be a occaionally slow internet connection, retrying the install should work.

[ThaiDo345]

I don't seem to have this offline help viewer folder and the taskkill still gives me the same error.

[Christina_R]

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@ThaiDo345 wrote:

I don't seem to have this offline help viewer folder and the taskkill still gives me the same error.

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It's possible that you have a different root problem. There have been some issues related to network changes at NI recently. But we're also still working on the issue with the offline help file.

Would you be willing to share your log files with me? C:\Users\<username>\AppData\Roaming\ni-offline-help-viewer\logs

[ThaiDo345]

Actually took a few installation tries, but the offline folder finally showed up and I was able to move the database folder. Installation of LV 2025 worked after that.

[huikmn]

The "taskkill /IM NIOfflineHelpViewer.exe" option worked for me, with a caveat.  It appears that a previous installation of NI software installed a help viewer.  That help viewer seems to activate to help with the installer.  After killing it, it kept reopening and caused the installation to hang or crash at different times.  It was also hidden from the default (Processes) task manager tab, it would only show in the Details tab.  Here's what worked for me:

open an elevated command prompt (maybe not necessary to be elevated, but it can't hurt)
type: taskkill /IM NIOfflineHelpViewer.exe 
open Task Manager
Go to Details tab
Run NI installer
Keep an eye on it, if NIOfflineHelpViewer.exe shows up in the Task Manger again hit enter in the command prompt.
Press up arrow in command prompt to load the previous taskkill command (or copy it to the clipboard) so you don't have to type it out each time.

[cy...]

I think NI should release a KB fix for this, since the Offline Help Viewer issue is blocking LV from being installed or uninstalled entirely. At minimum, the fix should clean up the system to a state where NI software can be installed OOTB successfully — without needing a full Windows reset. This really needs better failure handling and recovery steps.

Users shouldn’t have to jump through hoops just to get the LV into a usable state — much like what we saw with the broken toolkit.

[Christina_R]

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@cy... wrote:

I think NI should release a KB fix for this

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Support has created the KB:

LabVIEW Installer Hangs on 'NI Offline Help Viewer' Step - NI