SyntaxError: Failed to execute 'evaluate' on 'Document': The string '//div[contains(., 'Medium')' is not a valid XPath expression error using Selenium

Question

i using selenium try to get the div class value in html, but i hit the problem as per below

invalid selector: Unable to locate an element with the xpath expression //div[contains(., 'Medium') because of the following error:
SyntaxError: Failed to execute 'evaluate' on 'Document': The string '//div[contains(., 'Medium')' is not a valid XPath expression.

Below is my html and my code that read value of html.

HTML:

Code trials:

IWebElement element = driver.FindElement(By.XPath("//div[contains(., 'Medium')"));
String text =   element.GetAttribute("text");
Console.WriteLine(text);

Answer 1

This error message...

invalid selector: Unable to locate an element with the xpath expression //div[contains(., 'Medium') because of the following error:
SyntaxError: Failed to execute 'evaluate' on 'Document': The string '//div[contains(., 'Medium')' is not a valid XPath expression.

...implies that the XPath which you have used was not a valid XPath expression.

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You were so close. You missed the closing ] while constructing the xpath.

Effectively your line of code will be:

IWebElement element = driver.FindElement(By.XPath("//div[contains(., 'Medium')]"));

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References

You can find a couple of related relevant discussions in:

• selenium - Failed to execute 'evaluate' on 'Document': The string is not a valid XPath expression
• SyntaxError: Failed to execute 'evaluate' on 'Document': The string '//img[contains('1236548597')]' is not a valid XPath expression

Answer 2

You xpath expression less closing ]:

IWebElement element = driver.FindElement(By.XPath("//div[contains(., 'Medium')]"));
String text = element.Text;
Console.WriteLine(text);

And to extract text use element.Text; or element.GetAttribute("innerHTML");