dn-vnstat "no data to display" in "Data usage" and "compare usage"

[pirx73]

Yes those errors. Symlinks fixed the issue. I did had big entware upgrade before.
I removed symlinks and implemented sugested solution. Works now! Thanks a lot!

 

[CaptainSTX]

@Jack Yaz - may i report a small issue here?
I upgraded to the latest version of the vnstat and some days after - to 386.4
I noticed that web gui doesn't show latest daily stats, last day was dec 12th.
I went to cli and did manual stats update. 3 libs were missing. I worked around the issue by creating symlinks to the existing lib versions.
These 3:

libwebpdecoder.so.4.1.1 -> libwebpdecoder.so.3.1.2
libwebp.so.8.1.1 -> libwebp.so.7.1.2
libwebpdemux.so.2.7.0 -> libwebpdemux.so.2.0.8

On the left is version vnstat was looking for, on the right - actual lib version in the system.

I have the same issue and even the same date. The stats I get emailed every night are correct and up to date.

 

[KaonDecay]

I also had the problem of "No Data to Display" in the "Date Usage" and "Compare Usage" panes. I run dn-vnstat v2.0.4 on an RT-AX88U running 388.1. When I ran option 1 to update the stats, I noticed a number of instances of this error.

SQLite header and source version mismatch
2020-08-14 13:23:32 fca8dc8b578f215a969cd899336378966156154710873e68b3d9ac5881b0ff3f
2022-11-16 12:10:08 89c459e766ea7e9165d0beeb124708b955a4950d0f4792f457465d71b158d318

Removing the entware version of the sqlite3 command (opkg remove sqlite3-cli) solved the problem. I am not sure if some other addon or custom script depended on the entware sqlite3-cli, but since the entware version was (at least for me) not working, removing it caused no extra harm.