import PropTypes from 'prop-types' function WikiLink({ url, children }) { if (window.wikiEnabled) { return ( {children} ) } else { return <>{children} } } WikiLink.propTypes = { url: PropTypes.string.isRequired, children: PropTypes.node.isRequired, } const hints = { hint_misplaced_alignment_tab_character: { extraInfoURL: 'https://www.overleaf.com/learn/Errors/Misplaced_alignment_tab_character_%26', formattedContent: ( <> You have placed an alignment tab character '&' in the wrong place. If you want to align something, you must write it inside an align environment such as \begin {'{align}'} … \end {'{align}'}, \begin {'{tabular}'} … \end {'{tabular}'}, etc. If you want to write an ampersand '&' in text, you must write \& instead. ), }, hint_extra_alignment_tab_has_been_changed: { extraInfoURL: 'https://www.overleaf.com/learn/Errors/Extra_alignment_tab_has_been_changed_to_%5Ccr', formattedContent: ( <> You have written too many alignment tabs in a table, causing one of them to be turned into a line break. Make sure you have specified the correct number of columns in your{' '} table. ), }, hint_display_math_should_end_with: { extraInfoURL: 'https://www.overleaf.com/learn/Errors/Display_math_should_end_with_$$', formattedContent: ( <> You have forgotten a $ sign at the end of 'display math' mode. When writing in display math mode, you must always math write inside $$ … $$. Check that the number of $s match around each math expression. ), }, hint_missing_inserted: { extraInfoURL: 'https://www.overleaf.com/learn/Errors/Missing_$_inserted', formattedContent: ( <>

You need to enclose all mathematical expressions and symbols with special markers. These special markers create a ‘math mode’.

Use $...$ for inline math mode, and \[...\] or one of the mathematical environments (e.g. equation) for display math mode.

This applies to symbols such as subscripts ( _ ), integrals ( \int ), Greek letters ( \alpha,{' '} \beta, \delta ) and modifiers{' '} {'(\\vec{x}'}, {'\\tilde{x}'}).

), }, hint_reference_undefined: { extraInfoURL: 'https://www.overleaf.com/learn/Errors/There_were_undefined_references', formattedContent: ( <> You have referenced something which has not yet been labelled. If you have labelled it already, make sure that what is written inside \ref {'{...}'} is the same as what is written inside \label {'{...}'}. ), }, hint_there_were_undefined_references: { extraInfoURL: 'https://www.overleaf.com/learn/Errors/There_were_undefined_references', formattedContent: ( <> You have referenced something which has not yet been labelled. If you have labelled it already, make sure that what is written inside \ref {'{...}'} is the same as what is written inside \label {'{...}'}. ), }, hint_citation_on_page_undefined_on_input_line: { extraInfoURL: 'https://www.overleaf.com/learn/Errors/Citation_XXX_on_page_XXX_undefined_on_input_line_XXX', formattedContent: ( <> You have cited something which is not included in your bibliography. Make sure that the citation (\cite {'{...}'}) has a corresponding key in your bibliography, and that both are spelled the same way. ), }, hint_label_multiply_defined_labels: { extraInfoURL: 'https://www.overleaf.com/learn/Errors/There_were_multiply-defined_labels', formattedContent: ( <> You have used the same label more than once. Check that each \label {'{...}'} labels only one item. ), }, hint_float_specifier_changed: { extraInfoURL: 'https://www.overleaf.com/learn/Errors/%60!h%27_float_specifier_changed_to_%60!ht%27', formattedContent: ( <> The float specifier 'h' is too strict of a demand for LaTeX to place your float in a nice way here. Try relaxing it by using 'ht', or even 'htbp' if necessary. If you want to try keep the float here anyway, check out the{' '} float package . ), }, hint_no_positions_in_optional_float_specifier: { extraInfoURL: 'https://www.overleaf.com/learn/Errors/No_positions_in_optional_float_specifier', formattedContent: ( <> You have forgotten to include a float specifier, which tells LaTeX where to position your figure. To fix this, either insert a float specifier inside the square brackets (e.g. \begin {'{figure}'} [h]), or remove the square brackets (e.g. \begin {'{figure}'} ). Find out more about float specifiers{' '} here . ), }, hint_undefined_control_sequence: { extraInfoURL: 'https://www.overleaf.com/learn/Errors/Undefined_control_sequence', formattedContent: ( <> The compiler is having trouble understanding a command you have used. Check that the command is spelled correctly. If the command is part of a package, make sure you have included the package in your preamble using \usepackage {'{...}'}. ), }, hint_file_not_found: { extraInfoURL: 'https://www.overleaf.com/learn/Errors/File_XXX_not_found_on_input_line_XXX', formattedContent: ( <> The compiler cannot find the file you want to include. Make sure that you have{' '} uploaded the file {' '} and{' '} specified the file location correctly . ), }, hint_unknown_graphics_extension: { extraInfoURL: 'https://www.overleaf.com/learn/Errors/LaTeX_Error:_Unknown_graphics_extension:_.XXX', formattedContent: ( <> The compiler does not recognise the file type of one of your images. Make sure you are using a{' '} supported image format {' '} for your choice of compiler, and check that there are no periods (.) in the name of your image. ), }, hint_unknown_float_option_h: { extraInfoURL: 'https://www.overleaf.com/learn/Errors/LaTeX_Error:_Unknown_float_option_%60H%27', formattedContent: ( <> The compiler isn't recognizing the float option 'H'. Include \usepackage {'{float}'} in your preamble to fix this. ), }, hint_unknown_float_option_q: { extraInfoURL: 'https://www.overleaf.com/learn/Errors/LaTeX_Error:_Unknown_float_option_%60q%27', formattedContent: ( <> You have used a float specifier which the compiler does not understand. You can learn more about the different float options available for placing figures{' '} here {' '} . ), }, hint_math_allowed_only_in_math_mode: { extraInfoURL: 'https://www.overleaf.com/learn/Errors/LaTeX_Error:_%5Cmathrm_allowed_only_in_math_mode', formattedContent: ( <> You have used a font command which is only available in math mode. To use this command, you must be in maths mode (E.g. $ … $ or \begin {'{math}'} … \end {'{math}'} ). If you want to use it outside of math mode, use the text version instead: \textrm, \textit, etc. ), }, hint_mismatched_environment: { formattedContent: ( <> You have used \begin {'{...}'} without a corresponding \end {'{...}'}. ), }, hint_mismatched_brackets: { formattedContent: ( <>You have used an open bracket without a corresponding close bracket. ), }, hint_can_be_used_only_in_preamble: { extraInfoURL: 'https://www.overleaf.com/learn/Errors/LaTeX_Error:_Can_be_used_only_in_preamble', formattedContent: ( <> You have used a command in the main body of your document which should be used in the preamble. Make sure that \documentclass[…] {'{…}'} and all \usepackage {'{…}'} commands are written before \begin {'{document}'}. ), }, hint_missing_right_inserted: { extraInfoURL: 'https://www.overleaf.com/learn/Errors/Missing_%5Cright_insertede', formattedContent: ( <> You have started an expression with a \left command, but have not included a corresponding \right command. Make sure that your \left and \right commands balance everywhere, or else try using \Biggl and \Biggr commands instead as shown{' '} here . ), }, hint_double_superscript: { extraInfoURL: 'https://www.overleaf.com/learn/Errors/Double_superscript', formattedContent: ( <> You have written a double superscript incorrectly as a^b^c, or else you have written a prime with a superscript. Remember to include {'{and}'}{' '} when using multiple superscripts. Try a^ {'{b ^ c}'} instead. ), }, hint_double_subscript: { extraInfoURL: 'https://www.overleaf.com/learn/Errors/Double_subscript', formattedContent: ( <> You have written a double subscript incorrectly as a_b_c. Remember to include {'{and}'} when using multiple subscripts. Try a_ {'{b_c}'} instead. ), }, hint_no_author_given: { extraInfoURL: 'https://www.overleaf.com/learn/Errors/No_%5Cauthor_given', formattedContent: ( <> You have used the \maketitle command, but have not specified any \author. To fix this, include an author in your preamble using the \author {'{…}'} command. ), }, hint_environment_undefined: { extraInfoURL: 'https://www.overleaf.com/learn/Errors%2FLaTeX%20Error%3A%20Environment%20XXX%20undefined', formattedContent: ( <> You have created an environment (using \begin {'{…}'} and \end {'{…}'} commands) which is not recognized. Make sure you have included the required package for that environment in your preamble, and that the environment is spelled correctly. ), }, hint_somethings_wrong_perhaps_a_missing_item: { extraInfoURL: 'https://www.overleaf.com/learn/Errors/LaTeX_Error:_Something%27s_wrong--perhaps_a_missing_%5Citem', formattedContent: ( <> There are no entries found in a list you have created. Make sure you label list entries using the \item command, and that you have not used a list inside a table. ), }, hint_misplaced_noalign: { extraInfoURL: 'https://www.overleaf.com/learn/Errors/Misplaced_%5Cnoalign', formattedContent: ( <> You have used a \hline command in the wrong place, probably outside a table. If the \hline command is written inside a table, try including \\ before it. ), }, hint_no_line_here_to_end: { extraInfoURL: 'https://www.overleaf.com/learn/Errors/LaTeX_Error:_There%27s_no_line_here_to_end', formattedContent: ( <> You have used a \\ or \newline command where LaTeX was not expecting one. Make sure that you only use line breaks after blocks of text, and be careful using linebreaks inside lists and other environments.\ ), }, hint_verb_ended_by_end_of_line: { extraInfoURL: 'https://www.overleaf.com/learn/Errors/LaTeX_Error:_%5Cverb_ended_by_end_of_line', formattedContent: ( <> You have used a \verb command incorrectly. Try replacling the \verb command with \begin {'{verbatim}'} …\end {'{verbatim}'} .\ ), }, hint_illegal_unit_of_measure_pt_inserted: { extraInfoURL: 'https://www.overleaf.com/learn/Errors%2FIllegal%20unit%20of%20measure%20(pt%20inserted)', formattedContent: ( <> You have written a length, but have not specified the appropriate units (pt, mm, cm etc.). If you have not written a length, check that you have not witten a linebreak \\ followed by square brackets […] anywhere. ), }, hint_extra_right: { extraInfoURL: 'https://www.overleaf.com/learn/Errors/Extra_%5Cright', formattedContent: ( <> You have written a \right command without a corresponding \left command. Check that all \left and \right commands balance everywhere. ), }, hint_missing_begin_document_: { extraInfoURL: 'https://www.overleaf.com/learn/Errors%2FLaTeX%20Error%3A%20Missing%20%5Cbegin%20document', formattedContent: ( <> No \begin {'{document}'} command was found. Make sure you have included \begin {'{document}'} in your preamble, and that your main document is set correctly. ), }, hint_mismatched_environment2: { formattedContent: ( <> You have used \begin {'{}'} without a corresponding \end {'{}'}. ), }, hint_mismatched_environment3: { formattedContent: ( <> You have used \begin {'{}'} without a corresponding \end {'{}'}. ), }, hint_mismatched_environment4: { formattedContent: ( <> You have used \begin {'{}'} without a corresponding \end {'{}'}. ), }, } if (!window.wikiEnabled) { Object.keys(hints).forEach(ruleId => { hints[ruleId].extraInfoURL = null }) } export default hints