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+See https://github.com/ethereum/cpp-ethereum/blob/7cc43bed7de890a496d7238092837c30c7e90729/scripts/runalltests.sh#L38 for how cpp-ethereum uses this.
+
+FAQ
+===
+
+Cannot find module
+------------------
+
+I get an error:
+```
+$ node main.js $workdir/cpp-ethereum/build/eth/eth
+module.js:471
+    throw err;
+    ^
+
+Error: Cannot find module '/home/yh/src/tests/RLPTests/main.js'
+    at Function.Module._resolveFilename (module.js:469:15)
+    at Function.Module._load (module.js:417:25)
+    at Module.runMain (module.js:604:10)
+    at run (bootstrap_node.js:393:7)
+    at startup (bootstrap_node.js:150:9)
+    at bootstrap_node.js:508:3
+```
+
+Answer: if your `main.js` is in your current directory, use `./main.js` instead of just `main.js`.
+
+
+Cannot find module web3
+-----------------------
+
+I get an error:
+```
+$ node ./main.js ~/src/cpp-ethereum/build/eth/eth
+(node:27647) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 1): Error: Cannot find module 'web3'
+```