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当我查看https://github.com/alexeyr/scala-time并使用 Maven 构建一次时，一切正常。然后我触摸 src/main/scala/org/scala_tools/time/Implicits.scala 来触发重新编译。再次运行mvn compile，我得到 56 类似的错误

[ERROR] F:\MyProgramming\scala-time\src\main\scala\org\scala_tools\time\StaticDateTime.scala:29: error: value second is not a member of Int
[ERROR]   def nextSecond = now + 1.second

似乎没有看到在触摸文件中定义并使用import org.scala_tools.time.Implicits._. 但同时没有错误object Implicits is not a member of package org.scala_tools.time，正如我希望在这种情况下看到的那样。

之后mvn clean可以再次编译一次而不会出错。

  1. 任何人都可以重现这个吗？

  2. 如果是，我该如何解决？

更新：SBT 也会发生这种情况，但前提Implicits.scala是实际更改足以产生不同的类文件（例如添加一行object Implicits2 extends Implicits）。并且错误集是不同的！

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2 回答 2

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不满意的修复： rm -rf 目标；mvn compile – rampion 9 小时前

无用的修复，因为他可以做到mvn clean compile- 这将是跨平台解决方案:)

于 2012-04-01T05:48:58.733 回答
1

我可以在没有 的情况下重新创建错误maven，因此看起来这可能是使用方式的问题scalac（或带有 的错误scalac）：

% rm -rf target
% mkdir -p target/classes
% cat scalac-args | sed "s;~;$HOME;g" | xargs scalac-2.9 # runs successfully
% cat scalac-args | sed "s;~;$HOME;g" | xargs scalac-2.9
#...
56 errors found

（该sed命令只是解析.m2目录scalac-args）

scalac-args在哪里

-target:jvm-1.5
-classpath
~/.m2/repository/org/scala-lang/scala-library/2.9.1-1/scala-library-2.9.1-1.jar:~/.m2/repository/org/joda/joda-convert/1.2/joda-convert-1.2.jar:~/.m2/repository/joda-time/joda-time/2.1/joda-time-2.1.jar:target/classes
-d
target/classes
src/main/scala/org/scala_tools/time/DurationBuilder.scala
src/main/scala/org/scala_tools/time/Implicits.scala
src/main/scala/org/scala_tools/time/Imports.scala
src/main/scala/org/scala_tools/time/RichAbstractDateTime.scala
src/main/scala/org/scala_tools/time/RichAbstractInstant.scala
src/main/scala/org/scala_tools/time/RichAbstractPartial.scala
src/main/scala/org/scala_tools/time/RichAbstractReadableInstantFieldProperty.scala
src/main/scala/org/scala_tools/time/RichChronology.scala
src/main/scala/org/scala_tools/time/RichDate.scala
src/main/scala/org/scala_tools/time/RichDateMidnight.scala
src/main/scala/org/scala_tools/time/RichDateTime.scala
src/main/scala/org/scala_tools/time/RichDateTimeFormatter.scala
src/main/scala/org/scala_tools/time/RichDateTimeProperty.scala
src/main/scala/org/scala_tools/time/RichDateTimeZone.scala
src/main/scala/org/scala_tools/time/RichDuration.scala
src/main/scala/org/scala_tools/time/RichInstant.scala
src/main/scala/org/scala_tools/time/RichInt.scala
src/main/scala/org/scala_tools/time/RichLocalDate.scala
src/main/scala/org/scala_tools/time/RichLocalDateProperty.scala
src/main/scala/org/scala_tools/time/RichLocalDateTime.scala
src/main/scala/org/scala_tools/time/RichLocalDateTimeProperty.scala
src/main/scala/org/scala_tools/time/RichLocalTime.scala
src/main/scala/org/scala_tools/time/RichLocalTimeProperty.scala
src/main/scala/org/scala_tools/time/RichLong.scala
src/main/scala/org/scala_tools/time/RichMonthDay.scala
src/main/scala/org/scala_tools/time/RichMonthDayProperty.scala
src/main/scala/org/scala_tools/time/RichPartial.scala
src/main/scala/org/scala_tools/time/RichPartialProperty.scala
src/main/scala/org/scala_tools/time/RichPeriod.scala
src/main/scala/org/scala_tools/time/RichReadableDateTime.scala
src/main/scala/org/scala_tools/time/RichReadableDuration.scala
src/main/scala/org/scala_tools/time/RichReadableInstant.scala
src/main/scala/org/scala_tools/time/RichReadableInterval.scala
src/main/scala/org/scala_tools/time/RichReadablePartial.scala
src/main/scala/org/scala_tools/time/RichReadablePeriod.scala
src/main/scala/org/scala_tools/time/RichYearMonth.scala
src/main/scala/org/scala_tools/time/RichYearMonthProperty.scala
src/main/scala/org/scala_tools/time/StaticDateTime.scala
src/main/scala/org/scala_tools/time/StaticDateTimeFormat.scala
src/main/scala/org/scala_tools/time/StaticDateTimeZone.scala
src/main/scala/org/scala_tools/time/StaticDuration.scala
src/main/scala/org/scala_tools/time/StaticInterval.scala
src/main/scala/org/scala_tools/time/StaticLocalDate.scala
src/main/scala/org/scala_tools/time/StaticLocalDateTime.scala
src/main/scala/org/scala_tools/time/StaticLocalTime.scala
src/main/scala/org/scala_tools/time/StaticPartial.scala
src/main/scala/org/scala_tools/time/StaticPeriod.scala

并且已经下载了正确的罐子。

如果我在参数中target/classes替换为，那么它可以正常工作。target/classes/org/scala_tools/time/-classpath

% rm -rf target
% mkdir -p target/classes
% cat scalac-args | sed "s;~;$HOME;g" | xargs scalac-2.9 # runs successfully
% cat scalac-args | sed "s;~;$HOME;g" | xargs scalac-2.9 # runs successfully

因此，当给定路径上的目录时，看起来maven-scala-plugin期望在适合包的子目录中查找，但没有这样做。我不确定谁错了。scalacscalac

于 2012-04-01T13:51:38.257 回答