Question

尝试使用Google Ads API Java Client Library访问Adwords API（从项目自述文件中获取的代码段）：

val credential = new OfflineCredentials.Builder()
  .forApi(OfflineCredentials.Api.ADWORDS)
  .withClientSecrets(clientId, clientSecret)
  .withRefreshToken(refreshToken)
  .build()
  .generateCredential()

此操作失败并显示错误：

[info] Exception encountered when attempting to run a suite with class name: AdwordsClientSpec *** ABORTED ***
[info]   java.lang.NoSuchMethodError: com.google.common.base.Preconditions.checkNotNull(Ljava/lang/Object;Ljava/lang/String;Ljava/lang/Object;)Ljava/lang/Object;
[info]   at com.google.api.ads.common.lib.auth.OfflineCredentials$Api.<init>(OfflineCredentials.java:89)
[info]   at com.google.api.ads.common.lib.auth.OfflineCredentials$Api.<clinit>(OfflineCredentials.java:81)
[info]   at AdwordsClient$.generateAdwordsCredential(AdwordsClient.scala:24)
[info]   at AdwordsClientSpec$$anonfun$1.apply$mcV$sp(AdwordsClientSpec.scala:23)
[info]   at AdwordsClientSpec$$anonfun$1.apply(AdwordsClientSpec.scala:18)
[info]   at AdwordsClientSpec$$anonfun$1.apply(AdwordsClientSpec.scala:18)
[info]   at org.scalatest.Transformer$$anonfun$apply$1.apply$mcV$sp(Transformer.scala:22)
[info]   at org.scalatest.OutcomeOf$class.outcomeOf(OutcomeOf.scala:85)
[info]   at org.scalatest.OutcomeOf$.outcomeOf(OutcomeOf.scala:104)
[info]   at org.scalatest.Transformer.apply(Transformer.scala:22)

似乎某些依赖项未正确解析。我使用自述文件中提到的两个人工制品的最新版本与sbt：

 "com.google.api-ads" % "ads-lib" % "3.5.0",
 "com.google.api-ads" % "adwords-axis" % "3.5.0"

Answer 1

正如@TzachZoha所指出的，存在与Guava的版本冲突。 com.google.api-ads使用Guava 16.0而不是Guava 20.0。我能够通过改变sbt构建定义来编译我的代码：

  ("com.google.api-ads" % "ads-lib" % "3.5.0").exclude(
    "com.google.guava", "guava"),
  "com.google.api-ads" % "adwords-axis" % "3.5.0",
  "com.google.guava" % "guava" % "20.0"

Answer 2

我能够通过从我的lib文件夹中删除Google Collections jar来解决这个问题，该文件夹与其他一些罐子一起出现了;见https://code.google.com/archive/p/google-collections/#

Google Ads API Java客户端库：java.lang.NoSuchMethodError：com.google.common.base.Preconditions.checkNotNull

2 个答案: