https://community.qlik.com/t5/Talend-Studio/resolved-quot-Execution-failed-null-quot-error-after-first-time/m-p/2298606#M71049 Updated the java version to an older one and re-installed Talend. It is working now. Wed, 06 Aug 2014 22:53:51 GMT Anonymous 2014-08-06T22:53:51Z https://community.qlik.com/t5/Talend-Studio/resolved-quot-Execution-failed-null-quot-error-after-first-time/m-p/2298605#M71048 I am experiencing <B>Execution failed : null</B> error followed by this error when I run twice. It is a simple sample job with tRowGenerator. I am getting the same error irrespective of job. <BR />Execution failed : Unresolved compilation problems:&nbsp; <BR />&nbsp; &nbsp; The import java.util.Arrays cannot be resolved <BR />&nbsp; &nbsp; The import java.util.regex.Pattern cannot be resolved <BR />&nbsp; &nbsp; Pattern cannot be resolved to a type <BR />&nbsp; &nbsp; Pattern cannot be resolved to a type <BR />&nbsp; &nbsp; Pattern cannot be resolved <BR />&nbsp; &nbsp; Pattern cannot be resolved to a type <BR />&nbsp; &nbsp; Pattern cannot be resolved <BR />&nbsp; &nbsp; Pattern cannot be resolved to a type <BR />&nbsp; &nbsp; Pattern cannot be resolved to a type <BR />&nbsp; &nbsp; Pattern cannot be resolved to a type <BR />&nbsp; &nbsp; Pattern cannot be resolved <BR />&nbsp; &nbsp; Pattern cannot be resolved to a type <BR />&nbsp; &nbsp; Pattern cannot be resolved to a type <BR />&nbsp; &nbsp; Pattern cannot be resolved to a type <BR />&nbsp; &nbsp; Pattern cannot be resolved to a type <BR />&nbsp; &nbsp; Pattern cannot be resolved to a type <BR />&nbsp; &nbsp; Pattern cannot be resolved <BR />&nbsp; &nbsp; The method replace(char, char) in the type String is not applicable for the arguments (String, String) <BR />&nbsp; &nbsp; The method replace(char, char) in the type String is not applicable for the arguments (String, String) <BR />&nbsp; &nbsp; Pattern cannot be resolved to a type <BR />&nbsp; &nbsp; Pattern cannot be resolved to a type <BR />&nbsp; &nbsp; Arrays cannot be resolved <BR />&nbsp; &nbsp; Arrays cannot be resolved <BR />&nbsp; &nbsp; java.util.Map.Entry cannot be resolved to a type <BR />&nbsp; &nbsp; The method entrySet() from the type Map&lt;String,Parameter&gt; refers to the missing type Map$Entry <BR />&nbsp; &nbsp; The method contains(CharSequence) from the type String refers to the missing type CharSequence <BR /> <B><U>Talend Version:</U></B> <BR />Talend Enterprise Data Integration <BR />Version: 5.3.1.r104014 <BR /> <B><U>Java Version:</U></B> <BR />jdk1.8.0_11 <BR /> <B><U>System:</U></B> <BR /> <BR />Is there a setting that I am missing somewhere? Wed, 06 Aug 2014 21:29:24 GMT https://community.qlik.com/t5/Talend-Studio/resolved-quot-Execution-failed-null-quot-error-after-first-time/m-p/2298605#M71048 Anonymous 2014-08-06T21:29:24Z https://community.qlik.com/t5/Talend-Studio/resolved-quot-Execution-failed-null-quot-error-after-first-time/m-p/2298606#M71049 Updated the java version to an older one and re-installed Talend. It is working now. Wed, 06 Aug 2014 22:53:51 GMT https://community.qlik.com/t5/Talend-Studio/resolved-quot-Execution-failed-null-quot-error-after-first-time/m-p/2298606#M71049 Anonymous 2014-08-06T22:53:51Z