java.lang.IllegalArgumentException: Must supply a valid regex string

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Must supply a valid regex string
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Key must have an order-preserving data type to be used as sort key: _PCollectionID
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platform string needs none or two '-': x64-mingw32
via Google Groups by Javier Delgado via StackOverflow, 11 months ago
projectId must match the following pattern: ([a-z\d-]{1,100}~)?([a-z\d][a-z\d-.]{0,99}:)?([a-z\d][a-z\d-]{0,99})
java.lang.IllegalArgumentException: Must supply a valid regex string
at org.apache.flume.interceptor.RegexExtractorInterceptor$Builder.configure(
at org.apache.flume.node.AbstractConfigurationProvider.loadSources(
at org.apache.flume.node.AbstractConfigurationProvider.getConfiguration(
at org.apache.flume.node.PollingPropertiesFileConfigurationProvider$
at java.util.concurrent.Executors$
at java.util.concurrent.FutureTask.runAndReset(
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(
at java.util.concurrent.ScheduledThreadPoolExecutor$
at java.util.concurrent.ThreadPoolExecutor.runWorker(
at java.util.concurrent.ThreadPoolExecutor$

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