scala 遇到過的問題

1：在我安裝完scala的插件後，在打開方法的實現類（open implementactions）的時候，拋出這個異常，後來發現這個異常是由於個人scala的插件跟我eclipse版本不兼容致使的。

An error occurred while searching for implementations of method 'getFinishOrdCustByOrderCode'. See error log for details.
org.eclipse.jdt.internal.core.hierarchy.HierarchyType.<init>(Lorg/eclipse/jdt/core/IType;[CI[C[[C)V

 

解決辦法：

個人eclipse版本是

 

version:Mars.2 release (4,5,2)

新下載的scala版本是

4.0.0 release for scala 2.11.6

再次安裝沒有上面問題能夠解決

 

 

 

2：在寫完scala代碼的後，出現異常錯誤（缺乏依賴的jar）

 

 

missing or invalid dependency detected while loading class file
'RDDOperationScope.class'. Could not access term annotation in value com.jackson, because
it (or its dependencies) are missing. Check your build definition for missing or conflicting
dependencies. (Re-run with `-Ylog-classpath` to see the problematic classpath.)
A full rebuild may help if 'RDDOperationScope.class' was compiled against an incompatible
version of com.jackson.    scala_1    Unknown    Scala Problem

 

missing or invalid dependency detected while loading class file 'RDDOperationScope.class'.
Could not access term JsonInclude in value com.annotation, because it (or its
are missing. Check your build definition for missing or conflicting dependencies.
(Re-run with `-Ylog-classpath` to see the problematic classpath.) A full rebuild may help if
'RDDOperationScope.class' was compiled against an incompatible version of com.annotation.
scala_1    Unknown    Scala Problem

 

missing or invalid dependency detected while loading class file
'RDDOperationScope.class'. Could not access term jackson in value com.fasterxml,
because it (or its dependencies) are missing. Check your build definition for missing or
conflicting dependencies. (Re-run with `-Ylog-classpath` to see the problematic classpath.)
A full rebuild may help if 'RDDOperationScope.class' was compiled against an incompatible
version of com.fasterxml.    scala_1    Unknown    Scala Problem

 

missing or invalid dependency detected while loading class file 'RDDOperationScope.class'.
Could not access term annotation in value com.jackson, because it
(or its dependencies) are missing. Check your build definition for missing or conflicting dependencies.
(Re-run with `-Ylog-classpath` to see the problematic classpath.)
A full rebuild may help if 'RDDOperationScope.class'
was compiled against an incompatible version of com.jackson.    scala_1
Unknown    Scala Problem ////////////////////////////////缺乏jackson包

 

missing or invalid dependency detected while loading class file 'RDD.class'.
Could not access term io in package org.apache.hadoop, because it (or its dependencies)
are missing. Check your build definition for missing or conflicting dependencies.
(Re-run with `-Ylog-classpath` to see the problematic classpath.) A full rebuild may help if
'RDD.class' was compiled against an incompatible version of org.apache.hadoop.    scala_1
Unknown    Scala Problem //////////////////////////////缺乏hadoop