# LaTeX Error: Something's wrong--perhaps a missing \item

This error appears when you have forgotten to include an ** \item** command. It can also appear from trying to use lists inside a table incorrectly.

## Common Causes

**Forgetting to write \item:**

The most basic example of this error is where you have told LaTeX that you are going to be writing a list, but you have not labelled your list entries with ** \item** tags. An example of this is shown below

```
\begin{itemize}
This is the first entry in our list
\end{itemize}
```

Here, you have told LaTeX that you are writing a list by using the ** itemize** environment. The mistake that is made is that you haven't labelled your list entry with

**. This will generate the error shown below:**

`\item`

main.tex, line 6

See the LaTeX manual or LaTeX Companion for explanation. Type H <return> for immediate help. ... l.6 \end{itemize} Try typing <return> to proceed. If that doesn't work, type X <return> to quit.

The correct way to write this list is:

```
\begin{itemize}
\item This is the first entry in our list
\end{itemize}
```

See here to learn more about how to make different types of lists in LaTeX.

**Writing lists inside tables incorrectly:**

This error will also appear if you try to number cells within a table using lists, as shown below.

```
\begin{tabular}{l}
\begin{enumerate}
\item This is item number one\\ \hline
\item This is item number two
\end{enumerate}
\end{tabular}
```

This is a mistake, as lists cannot be used to number table cells in this way. One way to solve the problem above would be to create a counter. This can be done by including

```
\newcounter{rownumbers}
\newcommand\rownumber{\stepcounter{rownumbers}\arabic{rownumbers}}
```

in the preamble to your document (see here). You can then write the above example as

```
\begin{tabular}{l r}
\rownumber & This is item number one\\ \hline
\rownumber & This is item number two
\end{tabular}
```

To learn more about how to create counters, check out our documentation.

## Overleaf guides

- Creating a document in Overleaf
- Uploading a project
- Copying a project
- Creating a project from a template
- Using the Overleaf project menu
- Including images in Overleaf
- Exporting your work from Overleaf
- Working offline in Overleaf
- Using Track Changes in Overleaf
- Using bibliographies in Overleaf
- Sharing your work with others
- Using the History feature
- Debugging Compilation timeout errors
- How-to guides
- Guide to Overleaf’s premium features

## LaTeX Basics

- Creating your first LaTeX document
- Choosing a LaTeX Compiler
- Paragraphs and new lines
- Bold, italics and underlining
- Lists
- Errors

## Mathematics

- Mathematical expressions
- Subscripts and superscripts
- Brackets and Parentheses
- Matrices
- Fractions and Binomials
- Aligning equations
- Operators
- Spacing in math mode
- Integrals, sums and limits
- Display style in math mode
- List of Greek letters and math symbols
- Mathematical fonts
- Using the Symbol Palette in Overleaf

## Figures and tables

- Inserting Images
- Tables
- Positioning Images and Tables
- Lists of Tables and Figures
- Drawing Diagrams Directly in LaTeX
- TikZ package

## References and Citations

- Bibliography management with bibtex
- Bibliography management with natbib
- Bibliography management with biblatex
- Bibtex bibliography styles
- Natbib bibliography styles
- Natbib citation styles
- Biblatex bibliography styles
- Biblatex citation styles

## Languages

- Multilingual typesetting on Overleaf using polyglossia and fontspec
- Multilingual typesetting on Overleaf using babel and fontspec
- International language support
- Quotations and quotation marks
- Arabic
- Chinese
- French
- German
- Greek
- Italian
- Japanese
- Korean
- Portuguese
- Russian
- Spanish

## Document structure

- Sections and chapters
- Table of contents
- Cross referencing sections, equations and floats
- Indices
- Glossaries
- Nomenclatures
- Management in a large project
- Multi-file LaTeX projects
- Hyperlinks

## Formatting

- Lengths in LaTeX
- Headers and footers
- Page numbering
- Paragraph formatting
- Line breaks and blank spaces
- Text alignment
- Page size and margins
- Single sided and double sided documents
- Multiple columns
- Counters
- Code listing
- Code Highlighting with minted
- Using colours in LaTeX
- Footnotes
- Margin notes

## Fonts

## Presentations

## Commands

## Field specific

- Theorems and proofs
- Chemistry formulae
- Feynman diagrams
- Molecular orbital diagrams
- Chess notation
- Knitting patterns
- CircuiTikz package
- Pgfplots package
- Typesetting exams in LaTeX
- Knitr
- Attribute Value Matrices

## Class files

- Understanding packages and class files
- List of packages and class files
- Writing your own package
- Writing your own class