Failed to generate .log file, but output console is there

I have tried to implement logs in the Serenity Cucumber framework and it prints logs in the console but doesn’t generate a .log file.

This is logback-test.xml under src/test/resources

<configuration>
    <appender name="STDOUT"
        class="ch.qos.logback.core.ConsoleAppender">
        <File name="File" fileName="admin.log">
            <encoder>
                <pattern> %d{HH:mm:ss.SSS}
                    [%thread] %-5level %logger{36} - %msg ..................%n </pattern>
            </encoder>
        </File>
    </appender>
    <appender name="FILE" class="ch.qos.logback.core.FileAppender">
        <file>admin.log</file>
        <encoder>
            <pattern>
                %d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg
                ..................%n
            </pattern>
        </encoder>
    </appender>
    <logger name="root" level="DEBUG" />
    <logger name="net.serenitybdd" level="INFO" />
    <logger name="net.thucydides" level="INFO" />
    <root level="INFO">
        <appender-ref ref="STDOUT" />
    </root>
</configuration>

Added below dependency in pom.xml

<dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-classic</artifactId>
            <version>1.0.13</version>
        </dependency>

Answer

A ConsoleAppender won’t write to a file, and will just ignore the file configuration element under it. Instead, you should use a FileAppender:

<configuration>
    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>
                %d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg..................%n
            </pattern>
        </encoder>
    </appender>
    <appender name="FILE" class="ch.qos.logback.core.FileAppender">
        <file>admin.log</file>
        <encoder>
            <pattern>
                %d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg..................%n
            </pattern>
        </encoder>
    </appender>
    <logger name="root" level="DEBUG" />
    <logger name="net.serenitybdd" level="INFO" />
    <logger name="net.thucydides" level="INFO" />
    <root level="INFO">
        <appender-ref ref="STDOUT" />
        <appender-ref ref="FILE" />
    </root>
</configuration>