12:04:18 [PREPARING] [INFO] Scanning for projects...
12:04:19 [PREPARING] [INFO]
12:04:19 [PREPARING] [INFO] --------------------------< prog1:recursion >---------------------------
12:04:19 [PREPARING] [INFO] Building recursion 1.0-SNAPSHOT
12:04:19 [PREPARING] [INFO] from pom.xml
12:04:19 [PREPARING] [INFO] --------------------------------[ jar ]---------------------------------
12:04:30 [PREPARING] [INFO]
12:04:30 [PREPARING] [INFO] --- clean:3.2.0:clean (default-clean) @ recursion ---
12:04:30 [PREPARING] [INFO]
12:04:30 [PREPARING] [INFO] --- resources:3.4.0:resources (default-resources) @ recursion ---
12:04:31 [PREPARING] [INFO] skip non existing resourceDirectory /git_10595805535128508445/src/main/resources
12:04:31 [PREPARING] [INFO]
12:04:31 [PREPARING] [INFO] --- compiler:3.15.0:compile (default-compile) @ recursion ---
12:04:32 [PREPARING] [INFO] Recompiling the module because of changed source code.
12:04:32 [PREPARING] [INFO] Compiling 26 source files with javac [debug release 25] to target/classes
12:04:34 [PREPARING] [INFO] -------------------------------------------------------------
12:04:34 [PREPARING] [ERROR] COMPILATION ERROR :
12:04:34 [PREPARING] [INFO] -------------------------------------------------------------
12:04:34 [PREPARING] [ERROR] /git_10595805535128508445/src/main/java/ch/fhnw/prog1/exercise/knapsack/KnapsackN.java:[3,15] cannot find symbol
12:04:34 [PREPARING] symbol: class IO
12:04:34 [PREPARING] location: package java.io
12:04:34 [PREPARING] [INFO] 1 error
12:04:34 [PREPARING] [INFO] -------------------------------------------------------------
12:04:34 [PREPARING] [INFO] ------------------------------------------------------------------------
12:04:34 [PREPARING] [INFO] BUILD FAILURE
12:04:34 [PREPARING] [INFO] ------------------------------------------------------------------------
12:04:34 [PREPARING] [INFO] Total time: 15.709 s
12:04:34 [PREPARING] [INFO] Finished at: 2026-04-30T12:04:34Z
12:04:34 [PREPARING] [INFO] ------------------------------------------------------------------------
12:04:34 [PREPARING] [ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.15.0:compile (default-compile) on project recursion: Compilation failure
12:04:34 [PREPARING] [ERROR] /git_10595805535128508445/src/main/java/ch/fhnw/prog1/exercise/knapsack/KnapsackN.java:[3,15] cannot find symbol
12:04:34 [PREPARING] [ERROR] symbol: class IO
12:04:34 [PREPARING] [ERROR] location: package java.io
12:04:34 [PREPARING] [ERROR]
12:04:34 [PREPARING] [ERROR] -> [Help 1]
12:04:34 [PREPARING] [ERROR]
12:04:34 [PREPARING] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
12:04:34 [PREPARING] [ERROR] Re-run Maven using the -X switch to enable full debug logging.
12:04:34 [PREPARING] [ERROR]
12:04:34 [PREPARING] [ERROR] For more information about the errors and possible solutions, please read the following articles:
12:04:34 [PREPARING] [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
12:04:34 [PREPARING] Failed to build student submission
12:04:34 [PREPARING] HINT: ensure your code can be compiled locally before running AutoFeedback evaluation