Hi , I am getting below exception while running ant compile command.
[ivy:retrieve] ERROR: impossible to acquire lock for net.sourceforge.nekohtml#nekohtml;1.9.17 [ivy:retrieve] tried C:\Users\ani\.ivy2\local\net.sourceforge.nekohtml\nekohtml\1.9.17\ivys\ivy.xml [ivy:retrieve] tried C:\Users\ani\.ivy2\local\net.sourceforge.nekohtml\nekohtml\1.9.17\jars\nekohtml.jar [ivy:retrieve] local: no ivy file nor artifact found for net.sourceforge.nekohtml#nekohtml;1.9.17 [ivy:retrieve] main: Checking cache for: dependency: net.sourceforge.nekohtml#nekohtml;1.9.17 {compile=[master]} [ivy:retrieve] ERROR: impossible to acquire lock for net.sourceforge.nekohtml#nekohtml;1.9.17 [ivy:retrieve] ERROR: impossible to acquire lock for net.sourceforge.nekohtml#nekohtml;1.9.17 [ivy:retrieve] tried C:\Users\ani\.ivy2\shared\net.sourceforge.nekohtml\nekohtml\1.9.17\ivys\ivy.xml [ivy:retrieve] tried C:\Users\ani\.ivy2\shared\net.sourceforge.nekohtml\nekohtml\1.9.17\jars\nekohtml.jar [ivy:retrieve] shared: no ivy file nor artifact found for net.sourceforge.nekohtml#nekohtml;1.9.17 [ivy:retrieve] ERROR: impossible to acquire lock for net.sourceforge.nekohtml#nekohtml;1.9.17 [ivy:retrieve] tried https://repo1.maven.org/maven2/net/sourceforge/nekohtml/nekohtml/1.9.17/nekohtml-1.9.17.pom [ivy:retrieve] public: found md file for net.sourceforge.nekohtml#nekohtml;1.9.17 [ivy:retrieve] => https://repo1.maven.org/maven2/net/sourceforge/nekohtml/nekohtml/1.9.17/nekohtml-1.9.17.pom (1.9.17) .... [ivy:retrieve] ==== working-chinese-mirror: tried [ivy:retrieve] http://uk.maven.org/maven2/net/sourceforge/nekohtml/nekohtml/1.9.17/nekohtml-1.9.17.pom [ivy:retrieve] :::::::::::::::::::::::::::::::::::::::::::::: [ivy:retrieve] :: UNRESOLVED DEPENDENCIES :: [ivy:retrieve] :::::::::::::::::::::::::::::::::::::::::::::: [ivy:retrieve] :: net.sourceforge.nekohtml#nekohtml;1.9.17: not found [ivy:retrieve] :::::::::::::::::::::::::::::::::::::::::::::: [ivy:retrieve] [ivy:retrieve] :::: ERRORS [ivy:retrieve] impossible to acquire lock for net.sourceforge.nekohtml#nekohtml;1.9.17 [ivy:retrieve] impossible to acquire lock for net.sourceforge.nekohtml#nekohtml;1.9.17 [ivy:retrieve] impossible to acquire lock for net.sourceforge.nekohtml#nekohtml;1.9.17 [ivy:retrieve] impossible to acquire lock for net.sourceforge.nekohtml#nekohtml;1.9.17 [ivy:retrieve] impossible to acquire lock for net.sourceforge.nekohtml#nekohtml;1.9.17 [ivy:retrieve] impossible to acquire lock for net.sourceforge.nekohtml#nekohtml;1.9.17 [ivy:retrieve] impossible to acquire lock for net.sourceforge.nekohtml#nekohtml;1.9.17 [ivy:retrieve] impossible to acquire lock for net.sourceforge.nekohtml#nekohtml;1.9.17 [ivy:retrieve] impossible to acquire lock for net.sourceforge.nekohtml#nekohtml;1.9.17 [ivy:retrieve] impossible to acquire lock for net.sourceforge.nekohtml#nekohtml;1.9.17 [ivy:retrieve] impossible to acquire lock for net.sourceforge.nekohtml#nekohtml;1.9.17 [ivy:retrieve] impossible to acquire lock for net.sourceforge.nekohtml#nekohtml;1.9.17 [ivy:retrieve] [ivy:retrieve] :: USE VERBOSE OR DEBUG MESSAGE LEVEL FOR MORE DETAILS [subant] Exiting G:\solar\workspace\SolrDevPro\lucene\benchmark\build.xml. [subant] Exiting G:\solar\workspace\SolrDevPro\lucene\build.xml. BUILD FAILED G:\solar\workspace\SolrDevPro\build.xml:147: The following error occurred while executing this line: G:\solar\workspace\SolrDevPro\lucene\build.xml:123: The following error occurred while executing this line: G:\solar\workspace\SolrDevPro\lucene\common-build.xml:2145: The following error occurred while executing this line: G:\solar\workspace\SolrDevPro\lucene\common-build.xml:414: impossible to resolve dependencies: resolve failed - see output for details I am not working under any firewall/proxy . I tried ant clean jar as well, but that did not work. Please suggest. Thanks, Aniket