"nitems == 1 not true"

[elig0n]

sdcv-0.5.3 from AUR

removing ~/.cache/sdcv/ and running sdcv show save to cache lines until:

Internal error: nitems == 1 not true at /build/sdcv/src/sdcv-0.5.3/src/stardict_lib.cpp: 544

Which is very much like this 2017 issue, for which the workaround on that page is still good, so I'm guessing the problem remains to lie with load_cache

Running sdcv as root, or another user on the same machine the problem does not recur.
Also, saving to cache only happens for regular users and not root, is that normal?

[greg-minshall]

Console version of Stardict, version 0.5.5

hi. i'm having this symptom i assume:

Internal error: nitems == 1 not true at /usr/src/debug/sdcv/sdcv-0.5.5/src/stardict_lib.cpp: 530

i tried deleting every sdcv/stardict cache or whatever in my home directory i could find (in ~/.cache, ~/.local/share, ...), but that doesn't seem to have helped.

if you have any ideas...

[anakojm]

I have the same issue with https://github.com/BoboTiG/ebook-reader-dict/blob/master/docs/en/README.md:

sdcv: /build/sdcv/src/sdcv-0.5.5/src/stardict_lib.cpp:530: const gchar* {anonymous}::OffsetIndex::read_first_on_page_key(glong): Assertion `(nitems == 1)' failed.

qstardict also crashes with a similar error (qstardict: stardict_lib.cpp:682: gulong {anonymous}::OffsetIndex::load_page(glong): Assertion `(nitems == page_data.size())' failed.)

goldendict does not crash

[Dushistov]

@anakojm

The assertion only occurred if there are problems with the *.oft file.

Is removing of dict-data.idx.oft fix problem ?

[anakojm]

I don’t see such a file:

/usr/share/stardict/dic/bobotig-en $ tree
.
├── dict-data.dict.dz
├── dict-data.idx
├── dict-data.ifo
└── res
    ├── 02d176db.gif
    ├── 04454792.gif
    ├── 056e3359.gif
    ├── 0683160a.gif
    ├── 0715a661.gif
    …
    ├── f9c3b57e.gif
    ├── f9c3d9c7.gif
    ├── fb96b5c6.gif
    ├── fed24f8f.gif
    └── fee40bb1.gif

2 directories, 123 files

I tried removing the *.idx file but then sdcv segfaults.

I added some lines to debug and the file giving the error is dict-data.idx:

/tmp/sdcv $ ./sdcv
…
wordentry_buf = Ledinghemois
std::min(sizeof(wordentry_buf), static_cast<size_t>(page_size)) = 264
idxfile = /usr/share/stardict/dic/bobotig-fr/dict-data.idx
nitems = 1
wordentry_buf = !
std::min(sizeof(wordentry_buf), static_cast<size_t>(page_size)) = 264
idxfile = /usr/share/stardict/dic/bobotig-en/dict-data.idx
nitems = 1
wordentry_buf = !
std::min(sizeof(wordentry_buf), static_cast<size_t>(page_size)) = 0
idxfile = /usr/share/stardict/dic/bobotig-en/dict-data.idx
nitems = 0
sdcv: /tmp/sdcv/src/stardict_lib.cpp:540: const gchar* {anonymous}::OffsetIndex::read_first_on_page_key(glong): Assertion `(nitems == 1)' failed.
Aborted

[Dushistov]

@anakojm

If your dictionary in /usr/share/stardict/dic/ , then *.oft can exists there,
because of sdcv have no rights to write into such directory.

So *.oft file somewhere in your home directory.
Possible location ~/.cache/sdcv/.

[anakojm]

There was indeed dict-data.idx.oft in ~/.cache/sdcv/ but removing it does nothing. It gets created again identically and sdcv still shows the same error.

[elig0n]

For me, *.oft files in /usr/share/stardict/dic/ didn't have o+r permissions and were owned by root, after setting it the problem was fixed. Perhaps explicit read permissions should be checked by the app and on error reported in human format to the user instead of the above cryptic one ? (unless there are other cases where nitems can be non-1)

[anakojm]

it wasn’t my case. my issue stopped appearing for a moment after an update of stardict-bobotig-en. should this issue be closed and another one opened?

[greg-minshall]

fwiw, i still have the problem

~ *​​​ ❯ sdcv fairly
Internal error: nitems == 1 not true at /usr/src/debug/sdcv/sdcv-0.5.5/src/stardict_lib.cpp: 530