//- 💫 DOCS > USAGE > TROUBLESHOOTING include ../../_includes/_mixins p | This section collects some of the most common errors you may come | across when installing, loading and using spaCy, as well as their solutions. +aside("Help us improve this guide") | Did you come across a problem like the ones listed here and want to | share the solution? You can find the "Suggest edits" button at the | bottom of this page that points you to the source. We always | appreciate #[+a(gh("spaCy") + "/pulls") pull requests]! +h(2, "install-loading") Installation and loading +h(3, "compatible-model") No compatible model found +code(false, "text"). No compatible model found for [lang] (spaCy v#{SPACY_VERSION}). p | This usually means that the model you're trying to download does not | exist, or isn't available for your version of spaCy. +infobox("Solutions") | Check the #[+a(gh("spacy-models", "compatibility.json")) compatibility table] | to see which models are available for your spaCy version. If you're using | an old version, consider upgrading to the latest release. Note that while | spaCy supports tokenization for | #[+a("/docs/api/language-models/#alpha-support") a variety of languages], | not all of them come with statistical models. To only use the tokenizer, | import the language's #[code Language] class instead, for example | #[code from spacy.fr import French]. +h(3, "symlink-privilege") Symbolic link privilege not held +code(false, "text"). OSError: symbolic link privilege not held p | To create #[+a("/docs/usage/models/#usage") shortcut links] that let you | load models by name, spaCy creates a symbolic link in the | #[code spacy/data] directory. This means your user needs permission to do | this. The above error mostly occurs when doing a system-wide installation, | which will create the symlinks in a system directory. +infobox("Solutions") | Run the #[code download] or #[code link] command as administrator, | or use a #[code virtualenv] to install spaCy in a user directory, instead | of doing a system-wide installation. +h(3, "import-error") Import error +code(false, "text"). Import Error: No module named spacy p | This error means that the spaCy module can't be located on your system, or in | your environment. +infobox("Solutions") | Make sure you have spaCy installed. If you're using a #[code virtualenv], | make sure it's activated and check that spaCy is installed in that | environment – otherwise, you're trying to load a system installation. You | can also run #[code which python] to find out where your Python | executable is located. +h(3, "import-error-models") Import error: models +code(false, "text"). ImportError: No module named 'en_core_web_sm' p | As of spaCy v1.7, all models can be installed as Python packages. This means | that they'll become importable modules of your application. When creating | #[+a("/docs/usage/models/#usage") shortcut links], spaCy will also try | to import the model to load its meta data. If this fails, it's usually a | sign that the package is not installed in the current environment. +infobox("Solutions") | Run #[code pip list] or #[code pip freeze] to check which model packages | you have installed, and install the | #[+a("/docs/usage/models#available") correct models] if necessary. If you're | importing a model manually at the top of a file, make sure to use the name | of the package, not the shortcut link you've created. +h(3, "vocab-strings") File not found: vocab/strings.json +code(false, "text"). FileNotFoundError: No such file or directory: [...]/vocab/strings.json p | This error may occur when using #[code spacy.load()] to load | a language model – either because you haven't set up a | #[+a("/docs/usage/models/#usage") shortcut link] for it, or because it | doesn't actually exist. +infobox("Solutions") | Set up a #[+a("/docs/usage/models/#usage") shortcut link] for the model | you want to load. This can either be an installed model package, or a | local directory containing the model data. If you want to use one of the | #[+a("/docs/api/language-models/#alpha-support") alpha tokenizers] for | languages that don't yet have a statistical model, you should import its | #[code Language] class instead, for example | #[code from spacy.fr import French]. +h(3, "command-not-found") Command not found +code(false, "text"). command not found: spacy p | This error may occur when running the #[code spacy] command from the | command line. spaCy does not currently add an entry to our #[code PATH] | environment variable, as this can lead to unexpected results, especially | when using #[code virtualenv]. Instead, commands need to be prefixed with | #[code python -m]. +infobox("Solution") | Run the command with #[code python -m], for example | #[code python -m spacy download en]. For more info on this, see the | #[+a("/docs/usage/cli") CLI documentation]. +h(2, "usage") Using spaCy +h(3, "pos-lemma-number") POS tag or lemma is returned as number +code. doc = nlp(u'This is text.') print([word.pos for word in doc]) # [88, 98, 90, 95] p | Like many NLP libraries, spaCy encodes all strings to integers. This | reduces memory usage and improves efficiency. The integer mapping also | makes it easy to interoperate with numpy. To access the string | representation instead of the integer ID, add an underscore #[code _] | after the attribute. +infobox("Solutions") | Use #[code pos_] or #[code lemma_] instead. See the | #[+api("token#attributes") #[code Token] attributes] for a list of available | attributes and their string representations. +h(3, "pron-lemma") Pronoun lemma is returned as #[code -PRON-] +code. doc = nlp(u'They are') print(doc[0].lemma_) # -PRON- p | This is in fact expected behaviour and not a bug. | Unlike verbs and common nouns, there's no clear base form of a personal | pronoun. Should the lemma of "me" be "I", or should we normalize person | as well, giving "it" — or maybe "he"? spaCy's solution is to introduce a | novel symbol, #[code -PRON-], which is used as the lemma for | all personal pronouns. For more info on this, see the | #[+api("annotation#lemmatization") annotation specs] on lemmatization.