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This error message keeps coming up even though I installed the TMRpcm library. Here is the total message. Did I do something wrong during the install process?

Build options changed, rebuilding all sketch_jun09b.ino:18:71:

fatal error: TMRpcm.h: No such file or directory compilation terminated.

Multiple libraries were found for "SD.h"

Used: C:\Program Files\Arduino\libraries\SD_master

Not used: C:\Program Files\Arduino\libraries\SDBackup

Error compiling.

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migration rejected from electronics.stackexchange.com Nov 5 '15 at 23:36

This question came from our site for electronics and electrical engineering professionals, students, and enthusiasts. Votes, comments, and answers are locked due to the question being closed here, but it may be eligible for editing and reopening on the site where it originated.

closed as too broad by Ricardo, Anonymous Penguin♦ Nov 5 '15 at 23:36

There are either too many possible answers, or good answers would be too long for this format. Please add details to narrow the answer set or to isolate an issue that can be answered in a few paragraphs.If this question can be reworded to fit the rules in the help center, please edit the question.
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I'm voting to close this question as off-topic because it is abandoned and unanswerable – Chris Stratton Oct 12 '15 at 5:17