Dimension mismatch when using pretrained vectors

[ajallooeian]

Hi,

I am trying to use the word vectors from here:
https://fasttext.cc/docs/en/crawl-vectors.html

and use pretrainedVectors option to make a classifier.
./fasttext supervised -input some_data.txt -output some_data.txt.model -pretrainedVectors model.bin -dim 300

However I get:

terminate called after throwing an instance of 'std::invalid_argument'
what(): Dimension of pretrained vectors (-1) does not match dimension (300)!
Aborted (core dumped)

or

terminate called after throwing an instance of 'std::invalid_argument'
what(): Dimension of pretrained vectors (-283686952306184) does not match dimension (300)!
Aborted (core dumped)

Content of sample_data.txt is:
__label__a hello
__label__b good
__label__c bad

I appreciate any advice.