Problem (What’s happening)

You’re getting “The following filepaths are too long” while downloading/importing Nanoflow Commons from the Mendix Marketplace.This is a Windows path-length limitation, not a Mendix or module bug.

Root Cause (Real reason)

• Nanoflow Commons contains deep node_modules paths.
• Your project is stored in a deep folder structure (e.g., Desktop → Company → Project → Version → Backup…).
• Windows (by default) limits paths to 260 characters → import fails.

 Solution 1 (BEST & FASTEST – Recommended)

Move your Mendix project to a short path

Do this:

1. Close Mendix Studio Pro
2. Move your app to:
3. C:\MendixApps\MyApp

(Create C:\MendixApps if needed)

1. Open the app again
2. Re-import Nanoflow Commons

Solution 2 (Enable Long Paths in Windows)

Use this if Solution 1 isn’t possible.

Option A: Group Policy (Windows Pro/Enterprise)

1. Win + R → gpedit.msc
2. Go to:
3. Computer Configuration
4. → Administrative Templates
5. → System
6. → Filesystem
7. Enable:“Win32 long paths”
8. Restart your system

Option B: Registry (All Windows versions)

1. Win + R → regedit
2. Navigate to:
3. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FileSystem
4. Set:
5. LongPathsEnabled = 1 (DWORD)
6. Restart

Solution 3 (Quick Mendix-side cleanup)

After fixing paths:

1. Delete this folder (if exists):
2. <YourApp>\javascriptsource\
3. Re-open Studio Pro
4. Download Nanoflow Commons again

About the Errors You See Below (CE1613)

NanoflowCommons.RefreshEntity.EntityToRefresh no longer exists

These are secondary errors caused by partial import failure.

Fix:

• Once the module imports successfully:
  • Open affected nanoflows
  • Re-select the Refresh Entity parameter
  • Save → Errors disappear

Thank you Vasmi for your suggestion