無法從源代碼構建Cassandra

Question

我使用的是Mac OS X，我的ant，java依賴項滿足最低要求。 當我通過構建源代碼時

ant build

我收到如下錯誤：

 [echo] apache-cassandra: /Users/taiyuanz/git/cassandra-trunk/build.xml
[javac] Compiling 890 source files to /Users/taiyuanz/git/cassandra-trunk/build/classes/main
[javac] Note: Processing compiler hints annotations
[javac] warning: Supported source version 'RELEASE_6' from annotation processor 'org.openjdk.jmh.generators.BenchmarkProcessor' less than -source '1.8'
[javac] /Users/taiyuanz/git/cassandra-trunk/src/java/org/apache/cassandra/db/partitions/AbstractBTreePartition.java:33: error: reference to Row is ambiguous
[javac] public abstract class AbstractBTreePartition implements Partition, Iterable<Row>
[javac]                                                                             ^
[javac]   both interface org.apache.cassandra.db.rows.Row in org.apache.cassandra.db.rows and class org.apache.cassandra.db.Row in org.apache.cassandra.db match
[javac] /Users/taiyuanz/git/cassandra-trunk/src/java/org/apache/cassandra/db/partitions/PartitionUpdate.java:72: error: reference to Row is ambiguous
[javac]     private BTree.Builder<Row> rowBuilder;
[javac]                           ^
[javac]   both interface org.apache.cassandra.db.rows.Row in org.apache.cassandra.db.rows and class org.apache.cassandra.db.Row in org.apache.cassandra.db match
[javac] /Users/taiyuanz/git/cassandra-trunk/src/java/org/apache/cassandra/db/partitions/PartitionUpdate.java:164: error: reference to Row is ambiguous
[javac]     public static PartitionUpdate singleRowUpdate(CFMetaData metadata, DecoratedKey key, Row row)
.......

都是由於相同的問題-由於Row類引起的歧義。 一個人怎么解決呢？

Answer 1

看起來您的源代碼樹中具有3.0之前和3.0之后的Cassandra的源代碼。 我會跑：

git clean -xfd

看看是否能解決問題。 否則，請刪除存儲庫，然后從干凈的克隆重新開始。