34 examples
Missing dependency
Essential component or library missing, causing runtime errors.
[ FAQ1 ]
What is a missing dependency?
A missing dependency occurs when code relies on an external library, module, or resource that hasn't been installed, imported, or declared correctly. These errors frequently appear during application builds or runtime, particularly when using package managers (like npm) or frameworks (such as React's
useEffect). Symptoms include build failures, import errors, or runtime crashes due to unresolved modules or functions. Properly managing and declaring dependencies is crucial to ensuring reliable and predictable software operation.
[ FAQ2 ]
How to fix missing dependency errors
To fix missing dependency errors, verify that all required dependencies are correctly listed in your project's dependency files (such as
package.json in npm-based projects) and have been properly installed. Run commands like npm install or yarn install to ensure dependencies are fetched and configured correctly. Confirm that imports or require statements accurately reflect installed module names and file paths. Utilize dependency management tools and scripts to maintain consistent and complete dependencies, and regularly review build logs or error messages to promptly detect and resolve missing or improperly configured dependencies.diff block
greptile
logic: Missing dependency array in useMountEffect call could cause multiple unnecessary initializations
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greptile
logic: Missing dependency `t` in the useEffect dependency array. This could cause stale translations if the language changes while the component is mounted.
suggested fix
useEffect(() => {
if (error) {
notifications.show({
title: t('register-form.feature.error'),
message: t('register-form.feature.password-copied-error')
})
}
if (copied) {
notifications.show({
title: t('register-form.feature.password-copied'),
message: t('register-form.feature.password-copied-message')
})
}
+ }, [error, copied, t])
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greptile
logic: Missing dependency onModelChange in useEffect dependency array could cause stale closure issues
suggested fix
useEffect(() => {
const selectModel = cache.get();
onModelChange(selectModel ?? "default");
+ }, [onModelChange]);
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greptile
logic: Missing dependency onModelChange in useEffect dependency array could cause stale closure issues
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greptile
logic: Missing dependency 'repos' in useCallback dependencies array. This could cause stale closures when updating repos.
```suggestion
const handleImportClick = useCallback(
async (repo: Repo) => {
try {
await updateRepository({
github_id: Number(repo.id),
user_id: user.id as string,
name: repo.name,
owner: repo.owner.login,
html_url: repo.html_url,
setLoading: setLoading,
});
const currentRepos = [...repos];
const updatedRepos = [...currentRepos, repo];
setRepos(updatedRepos);
router.push(`/${repo.name}/dashboard`);
} catch (error) {
console.error("Error fetching commit messages:", error);
}
},
+ [user.id, router, repos]
);
```
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greptile
logic: Missing dependency array on useEffect may cause redundant executions. Consider adding dependencies (e.g. [transformed, transformedCode]) to control effect invocation.
suggested fix
useEffect(() => {
async function getTransformedCode() {
const transformResult = await transformed;
if (transformResult !== transformedCode) {
setTransformedCode(transformResult);
}
}
getTransformedCode();
+ }, [transformed, transformedCode]);
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greptile
logic: useEffect is missing dependency array and runs on every render. Add [] or [props.isSelected] as dependencies.
suggested fix
useEffect(() => {
// Updates whether the item is selected with the keyboard (triggered on selectedIndex prop change).
updateSelection()
// if (
// isSelected() &&
// itemRef.current &&
// itemRef.current.getBoundingClientRect().left > MIN_LEFT_MARGIN //TODO: Kinda hacky, fix
// // This check is needed because initially the menu is initialized somewhere above outside the screen (with left = 1)
// // scrollIntoView() is called before the menu is set in the right place, and without the check would scroll to the top of the page every time
// ) {
// itemRef.current.scrollIntoView({
// behavior: 'smooth',
// block: 'nearest',
// })
// }
+ }, [props.isSelected])
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greptile
logic: Missing dependency array items - command, projectId, and gcloudPath should be included to re-run when they change
suggested fix
useEffect(() => {
executeCommand();
+ }, [command, projectId, gcloudPath]);
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greptile
logic: Missing dependency array causing unnecessary re-renders on every render cycle
suggested fix
useEffect(() => {
// Updates whether the item is selected with the keyboard (triggered on selectedIndex prop change).
updateSelection()
// if (
// isSelected() &&
// itemRef.current &&
// itemRef.current.getBoundingClientRect().left > MIN_LEFT_MARGIN //TODO: Kinda hacky, fix
// // This check is needed because initially the menu is initialized somewhere above outside the screen (with left = 1)
// // scrollIntoView() is called before the menu is set in the right place, and without the check would scroll to the top of the page every time
// ) {
// itemRef.current.scrollIntoView({
// behavior: 'smooth',
// block: 'nearest',
// })
// }
+ }, [props.isSelected])
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greptile
logic: Missing dependency array in useEffect hook could cause unnecessary re-renders
suggested fix
useEffect(() => {
// Updates whether the item is selected with the keyboard (triggered on selectedIndex prop change).
updateSelection()
// if (
// isSelected() &&
// itemRef.current &&
// itemRef.current.getBoundingClientRect().left > MIN_LEFT_MARGIN //TODO: Kinda hacky, fix
// // This check is needed because initially the menu is initialized somewhere above outside the screen (with left = 1)
// // scrollIntoView() is called before the menu is set in the right place, and without the check would scroll to the top of the page every time
// ) {
// itemRef.current.scrollIntoView({
// behavior: 'smooth',
// block: 'nearest',
// })
// }
+ }, [props.isSelected])
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greptile
logic: Missing dependency array items. setCached should be included in the useEffect dependencies to prevent stale closure issues.
suggested fix
+ useEffect(() => {
+ if (!r.data) return;
setCached(r.data);
+ }, [r.data, setCached]);
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greptile
logic: Missing dependency array items: addFromSelected and addFromClipboard should be included in useEffect dependencies
suggested fix
useEffect(() => {
if (isFirstCall && enableVision) {
addFromSelected(() => {});
addFromClipboard();
}
+ }, [isFirstCall, enableVision, addFromSelected, addFromClipboard]);
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greptile
logic: Missing dependency array in useEffect, causing the effect to run on every render. Add an empty dependency array to run only once on mount.
suggested fix
useEffect(() => {
if (
navigator.userAgent.toLowerCase().includes('linkedin') ||
navigator.userAgent.toLowerCase().includes('facebook')
) {
const params = new URLSearchParams(window.location.search)
params.set('__ph_distinct_id', posthog.get_distinct_id())
params.set('__ph_is_identified', posthog._isIdentified() ? 'true' : 'false')
params.set('__ph_session_id', posthog.get_session_id())
window.location.search = params.toString()
}
+ }, [])
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greptile
logic: Missing dependency array in useEffect hook causes continuous clipboard reads. Add empty array to only run on mount
suggested fix
useEffect(() => {
Clipboard.readText().then((text) => {
setClipboardText(text?.toString() || "now");
});
+ }, []);
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greptile
logic: Missing dependency array entry for linkQuickbooks in useCallback
suggested fix
const initiateQuickbooksOAuth = useCallback(
async () => {
const authorizationUrl = await linkQuickbooks()
window.location.href = authorizationUrl
},
+ [linkQuickbooks]);
diff block
greptile
logic: Missing dependency array items. `includeProtocol` and `expandProjectFolder` should be included in the useEffect dependencies.
suggested fix
+ useEffect(() => {
if (includeProtocol) {
if (value?.startsWith('project://')) {
expandProjectFolder(value.replace('project://', ''))
}
} else {
expandProjectFolder(value || '')
}
+ }, [value, includeProtocol, expandProjectFolder])
diff block
greptile
logic: Effect missing dependency array. Add empty array to prevent running on every render.
suggested fix
useEffect(() => {
return () => {
runtime.threads.getMainThreadRuntimeCore().detach();
};
+ }, []);
diff block
greptile
logic: Missing dependency array items. Add content, from_language, and to_language to useEffect dependencies to prevent stale closures
suggested fix
+ useEffect(() => {
+ (async () => {
+ const response = await translateAPI(content, from_language, to_language);
set_translate_result(response);
+ })();
+ }, [content, from_language, to_language]);
diff block
greptile
logic: useEffect has missing dependency editorEngine.canvas which is used in the effect. Add it to the dependency array.
suggested fix
+ useEffect(() => {
+ updateMenuItems();
if (
editorEngine.webviews.selected.length > 0 &&
editorEngine.elements.selected.length === 0
) {
setSettings(editorEngine.canvas.getFrame(editorEngine.webviews.selected[0].id));
}
}, [
editorEngine.elements.selected,
editorEngine.ast.mappings.layers,
editorEngine.webviews.selected,
+ editorEngine.canvas,
]);
diff block
greptile
logic: Missing dependency array items: addFromSelected and addFromClipboard should be included in the useEffect dependency array
suggested fix
useEffect(() => {
if (isFirstCall && enableVision) {
addFromSelected(() => {});
addFromClipboard();
}
+ }, [isFirstCall, enableVision, addFromSelected, addFromClipboard]);
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greptile
logic: Effect has missing dependency setPinnedItems and setUnpinnedItems in dependency array
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greptile
logic: useEffect has missing dependency 'setAuthProvider' in dependency array
suggested fix
useEffect(() => {
setAuthProvider(authProvider);
(async () => {
try {
await service.authorize();
setIsLoading(false);
await showToast({ title: "Authorization Successful" });
} catch (error) {
console.error("error authorizaing user", error);
setIsLoading(false);
await showFailureToast({ title: "Authorization Failed" });
} finally {
popToRoot();
}
})();
+ }, [service, setAuthProvider]);
diff block
greptile
logic: Missing dependency array for fetchAllTransactions and setTransactionLoader in useEffect hook
suggested fix
if (!addresses.ethAddress && !addresses.availAddress) return;
+ }, [addresses.ethAddress, addresses.availAddress, fetchAllTransactions, setTransactionLoader]);
diff block
greptile
logic: Missing dependency array for autoFocus prop in useEffect, could cause stale closure issues
suggested fix
React.useEffect(() => {
let timeoutId: ReturnType<typeof setTimeout> | null = null;
if (props.autoFocus) {
timeoutId = setTimeout(() => {
ref.current?.focus();
});
}
return () => {
if (timeoutId) {
clearTimeout(timeoutId);
}
};
+ }, [props.autoFocus]);