我试图让私人版本在Travis-Ci Pro上表现，但它一直在抱怨，因为./gradlew assemble失败了。这是完整的日志：
Using worker: worker-linux-docker-4002cef1.prod.travis-ci.com:travis-linux-15
travis_fold:start:system_info
[0K[33;1mBuild system information[0m
Build language: java
Build group: stable
Build dist: precise
[34m[1mBuild image provisioning date and time[0m
Thu Feb 5 15:09:33 UTC 2015
[34m[1mOperating System Details[0m
Distributor ID: Ubuntu
Description: Ubuntu 12.04.5 LTS
Release: 12.04
Codename: precise
[34m[1mLinux Version[0m
3.13.0-29-generic
[34m[1mCookbooks Version[0m
a68419e https://github.com/travis-ci/travis-cookbooks/tree/a68419e
[34m[1mGCC version[0m
gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3
Copyright (C) 2011 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
[34m[1mLLVM version[0m
clang version 3.4 (tags/RELEASE_34/final)
Target: x86_64-unknown-linux-gnu
Thread model: posix
[34m[1mPre-installed Ruby versions[0m
ruby-1.9.3-p551
[34m[1mPre-installed Node.js versions[0m
v0.10.36
[34m[1mPre-installed Go versions[0m
1.4.1
[34m[1mRedis version[0m
redis-server 2.8.19
[34m[1mriak version[0m
2.0.2
[34m[1mMongoDB version[0m
MongoDB 2.4.12
[34m[1mCouchDB version[0m
couchdb 1.6.1
[34m[1mNeo4j version[0m
1.9.4
[34m[1mRabbitMQ Version[0m
3.4.3
[34m[1mElasticSearch version[0m
1.4.0
[34m[1mInstalled Sphinx versions[0m
2.0.10
2.1.9
2.2.6
[34m[1mDefault Sphinx version[0m
2.2.6
[34m[1mInstalled Firefox version[0m
firefox 31.0esr
[34m[1mPhantomJS version[0m
1.9.8
[34m[1mant -version[0m
Apache Ant(TM) version 1.8.2 compiled on December 3 2011
[34m[1mmvn -version[0m
Apache Maven 3.2.5 (12a6b3acb947671f09b81f49094c53f426d8cea1; 2014-12-14T17:29:23+00:00)
Maven home: /usr/local/maven
Java version: 1.7.0_76, vendor: Oracle Corporation
Java home: /usr/lib/jvm/java-7-oracle/jre
Default locale: en_US, platform encoding: ANSI_X3.4-1968
OS name: "linux", version: "3.13.0-29-generic", arch: "amd64", family: "unix"
travis_fold:end:system_info
[0K
Installing an SSH key from: default repository key
Key fingerprint: 23:d9:a6:24:7b:c4:67:d8:c6:45:13:5c:0f:56:04:92
travis_fold:start:git.checkout
[0Ktravis_time:start:06c3823f
[0K$ git clone --depth=50 --branch=cli-interface git@github.com:atomicpages/java-grader.git atomicpages/java-grader
Cloning into 'atomicpages/java-grader'...
remote: Counting objects: 62, done.[K
remote: Compressing objects: 2% (1/45) [K
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remote: Compressing objects: 97% (44/45) [K
remote: Compressing objects: 100% (45/45) [K
remote: Compressing objects: 100% (45/45), done.[K
Receiving objects: 1% (1/62)
Receiving objects: 3% (2/62)
Receiving objects: 4% (3/62)
Receiving objects: 6% (4/62)
Receiving objects: 8% (5/62)
Receiving objects: 9% (6/62)
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Receiving objects: 12% (8/62)
Receiving objects: 14% (9/62)
Receiving objects: 16% (10/62)
Receiving objects: 17% (11/62)
Receiving objects: 19% (12/62)
Receiving objects: 20% (13/62)
Receiving objects: 22% (14/62)
Receiving objects: 24% (15/62)
remote: Total 62 (delta 13), reused 54 (delta 5), pack-reused 0[K
Receiving objects: 25% (16/62)
Receiving objects: 27% (17/62)
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Receiving objects: 30% (19/62)
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Receiving objects: 43% (27/62)
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Receiving objects: 46% (29/62)
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Receiving objects: 96% (60/62)
Receiving objects: 98% (61/62)
Receiving objects: 100% (62/62)
Receiving objects: 100% (62/62), 13.52 KiB | 0 bytes/s, done.
Resolving deltas: 0% (0/13)
Resolving deltas: 38% (5/13)
Resolving deltas: 46% (6/13)
Resolving deltas: 53% (7/13)
Resolving deltas: 69% (9/13)
Resolving deltas: 76% (10/13)
Resolving deltas: 84% (11/13)
Resolving deltas: 92% (12/13)
Resolving deltas: 100% (13/13)
Resolving deltas: 100% (13/13), done.
Checking connectivity... done.
travis_time:end:06c3823f:start=1450114509982135009,finish=1450114510406203180,duration=424068171
[0K$ cd atomicpages/java-grader
$ git checkout -qf d3c067dead18a524bf85efb7eb90cad63d47368c
travis_fold:end:git.checkout
[0K
[33;1mThis job is running on container-based infrastructure, which does not allow use of 'sudo', setuid and setguid executables.[0m
[33;1mIf you require sudo, add 'sudo: required' to your .travis.yml[0m
[33;1mSee http://docs.travis-ci.com/user/workers/container-based-infrastructure/ for details.[0m
$ jdk_switcher use oraclejdk8
Switching to Oracle JDK8 (java-8-oracle), JAVA_HOME will be set to /usr/lib/jvm/java-8-oracle
$ export TERM=dumb
$ java -Xmx32m -version
java version "1.8.0_31"
Java(TM) SE Runtime Environment (build 1.8.0_31-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.31-b07, mixed mode)
$ javac -J-Xmx32m -version
javac 1.8.0_31
travis_fold:start:install
[0Ktravis_time:start:16e15912
[0K$ ./gradlew assemble
Error: Could not find or load main class org.gradle.wrapper.GradleWrapperMain
[31;1mThe command "eval ./gradlew assemble" failed. Retrying, 2 of 3.[0m
Error: Could not find or load main class org.gradle.wrapper.GradleWrapperMain
[31;1mThe command "eval ./gradlew assemble" failed. Retrying, 3 of 3.[0m
Error: Could not find or load main class org.gradle.wrapper.GradleWrapperMain
[31;1mThe command "eval ./gradlew assemble" failed 3 times.[0m
travis_time:end:16e15912:start=1450114512754418536,finish=1450114515995381755,duration=3240963219
[0K
[31;1mThe command "./gradlew assemble" failed and exited with 1 during .[0m
Your build has been stopped.
我不确定该怎么做。我根据Travis文档跟踪了项目的gradle设置，它应该可以正常工作......这是我的travis配置文件
language: java
jdk:
- oraclejdk8
- oraclejdk7
- openjdk7
before_script:
- chmod a+x gradlew
sccript: ./gradlew build
如果我通过IntelliJ IDEA或以下方式在本地构建：
gradle build chmod a+x gradlew && ./gradlew build 它完美无瑕。任何提示？
答案 0 :(得分：25)
对于任何通过我的问题的人都在我的.gitignore文件中。我无意中添加了这个条目：
gradle/
导致gradle/wrapper/gradle-wrapper.jar未包含在我的回购邮件中。删除.gitignore文件中的此条目并将更改提交到repo修复了该问题。
答案 1 :(得分：11)
事实上，不仅gradle/wrapper/gradle-wrapper.jar必须在那里，而且还应该-x权限。因此，如果您已经提交了它，但它没有-x，那么您应该执行以下操作：
chmod +x gradle/wrapper/gradle-wrapper.jar git add -f gradle/wrapper/gradle-wrapper.jar 参考：Could not find or load main class org.gradle.wrapper.GradleWrapperMain
答案 2 :(得分：8)
如果您不想将.jar文件添加到存储库中，可以在travi-ci上启动构建之前安装wrapper：
install: gradle wrapper --gradle-version 4.2
language: java
jdk:
- oraclejdk8
有关gradle documentation中包装器的更多信息，并在travis-ci doc中安装命令。
答案 3 :(得分：0)
在我的情况下，我在存储库中有gradle-wrapper.jar，但是它仍然给了我：
Error: Could not find or load main class org.gradle.wrapper.GradleWrapperMain
事实证明，由于我在LF中强制执行.gitattributes行结尾，因此gradle-wrapper.jar文件在提交期间被损坏。
要解决此问题，请执行以下操作：
.gitattributes中添加以下行*.jar binary rm -rf gradle/ gradlew gradlew.bat gradle wrapper --gradle-version=5.1.1 --distribution-type=all 答案 4 :(得分：0)
对于以上答案无法解决的问题，您可以尝试
jdk：.travis文件中的openjdk8而不是oraceljdk8
您可以检查oracle JDK和Open Jdk之间的区别。没关系，因为两者都获得了oracle的许可，也获得了开放GNU PL的许可，但是如果您希望有特定的区别，可以访问 -https://www.baeldung.com/oracle-jdk-vs-openjdk