Unfortunately you don't say which version of Bamboo you're using, but based on the error message it looks like you may be running into a known bug: https://jira.atlassian.com/browse/BAM-15580. Looking at the description it seems that this error may occur if the variable injection task is not configured correctly, or perhaps also if the file that contains the variables is not accessible.
Premier Support Engineer
Bamboo 5.9 will no longer be supported after June 12, 2017. What does this mean? As part of our End of Life policy, Atlassian supports major versions for two years after the first major iteratio...
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