Cannot start AEM

Question

New to AEM. I am sure this is trivial but would appreciate if you can explain how to fix and why does this happen.

I renamed my quickstart jar to aem-author-p4502.jar and double click.

Get this error on browser

Unable to compile class for JSP: An error occurred at line: 95 in the jsp file: /libs/granite/core/components/login/login.jsp The type java.lang.CharSequence cannot be resolved. It is indirectly referenced from required .class files 92: ? request.getParameter(PARAM_NAME_REASON) 93: : ""; 94: 95: if (!StringUtils.isEmpty(reason)) { 96: if (validReasons.containsKey(reason)) { 97: reason = validReasons.get(reason); 98: } else { An error occurred at line: 95 in the jsp file: /libs/granite/core/components/login/login.jsp The method isEmpty(CharSequence) in the type StringUtils is not applicable for the arguments (String) 92: ? request.getParameter(PARAM_NAME_REASON) 93: : ""; 94: 95: if (!StringUtils.isEmpty(reason)) { 96: if (validReasons.containsKey(reason)) { 97: reason = validReasons.get(reason); 98: } else {

JamesTa6 · Accepted Answer

‌Hello,See this post:Unable to compile class for JSP: An error occurred at line 95If you have any questions after reading this, feel free to post back here.

AmitVishwakarma · Answer

Hi @bkg2015The error occurs because the StringUtils.isEmpty() method is not resolving due to missing or incompatible dependencies. To fix it:Ensure Apache Commons Lang (which contains StringUtils) is available in the classpath.Check your AEM dependencies: Make sure the correct version of commons-lang3 is included in your Maven pom.xml.Rebuild AEM: After fixing dependencies, clear cache and rebuild your project.Verify the AEM jar: Ensure the renamed aem-author-p4502.jar is correctly installed and compatible with your AEM version.This should resolve the StringUtils.isEmpty() issue.

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